Hawker Seahawk
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The Hawker Sea Hawk is a British single-seat jet
day fighter A day fighter is a fighter aircraft equipped only to fight during the day. More specifically, it refers to a multi-purpose aircraft that does not include equipment for fighting at night (such as a radar and specialized avionics), although it is som ...
formerly of the
Fleet Air Arm The Fleet Air Arm (FAA) is the naval aviation component of the United Kingdom's Royal Navy (RN). The FAA is one of five :Fighting Arms of the Royal Navy, RN fighting arms. it is a primarily helicopter force, though also operating the Lockhee ...
(FAA), the air branch of the
Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
(RN), built by
Hawker Aircraft Hawker Aircraft Limited was a British aircraft manufacturer that was responsible for some of the most famous products in British aviation history. History Hawker had its roots in the aftermath of the First World War, which resulted in the ban ...
and its sister company,
Armstrong Whitworth Aircraft Sir W. G. Armstrong Whitworth Aircraft Company, or Armstrong Whitworth Aircraft, was a British list of aircraft manufacturers, aircraft manufacturer. History Armstrong Whitworth Aircraft was established as the Aerial Department of the Armstrong ...
. Although its design originated from earlier Hawker piston-engined fighters, the Sea Hawk was the company's first jet aircraft. Following acceptance in the RN, the Sea Hawk proved to be a reliable and sturdy workhorse. A considerable number were also produced for the export market and were operated from aircraft carriers in
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and
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n service. The last operational Sea Hawks, operated by the
Indian Navy The Indian Navy (IN) (ISO 15919, ISO: ) is the Navy, maritime and Amphibious warfare, amphibious branch of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Navy. The Chief of the Naval Staff (India), Chief ...
, were retired in 1983.


Design and development


Origins

Towards the end of the
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, Hawker's design team had become increasingly interested in developing a fighter aircraft that took advantage of the newly developed jet propulsion technology. Prior to this, Hawker had been committed until late 1944 to the production and further development of its piston-powered aircraft, such as the
Hurricane A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its ...
, Tempest and
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, to meet the wartime demands for these aircraft. On 1 September 1944, the first prototype of the company's latest fighter aircraft, the Hawker Fury/Sea Fury, conducted its
maiden flight The maiden flight, also known as first flight, of an aircraft is the first occasion on which it leaves the ground under its own power. The same term is also used for the first launch of rockets. In the early days of aviation it could be dange ...
; it was this aircraft that would serve as the basis for Hawker's first jet-powered aircraft.Mason 1966, p. 3. The design team studied the potential adaption of the aircraft, having opted to use the
Rolls-Royce Griffon The Rolls-Royce Griffon is a British 37-litre (2,240 cubic inch, cu in) Engine displacement, capacity, 60-degree V12 engine, V-12, liquid-cooled Aircraft engine, aero engine designed and built by Rolls-Royce Limited. In keeping with compan ...
-powered Fury prototype as the starting point. The team started with the deletion of the piston engine, with its replacement, a single
Rolls-Royce Nene The Rolls-Royce RB.41 Nene is a 1940s British centrifugal compressor turbojet engine. The Nene was a complete redesign, rather than a scaled-up Rolls-Royce Derwent,"Rolls-Royce Aero Engines" Bill Gunston, Patrick Stephens Limited 1989, , p.111 ...
turbojet The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...
engine, being fitted in a mid-fuselage position, along with lateral air intakes and a tailpipe which emerged beneath the tailplane. The prospective modifications also included "stretching" the fuselage and moving the cockpit to the extreme front of the fuselage in a re-contoured nose; this design received the internal designation ''P.1035''. Use of the
Rolls-Royce Derwent The Rolls-Royce RB.37 Derwent is a 1940s British centrifugal compressor turbojet engine, the second Rolls-Royce jet engine to enter production. It was an improved version of the Rolls-Royce Welland, which itself was a renamed version of Fran ...
engine had been studied but quickly discarded as lacking power for an aircraft of this size. In November 1944 the ''P.1035'' design was submitted for evaluation by the
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. In December 1944 Hawker refined the proposed design substantially. The jet exhaust was moved from beneath the tail and re-designed as two short split-lateral bifurcated exhausts (which gained the name "trouser legs"), embedded in the
trailing edge The trailing edge of an aerodynamic surface such as a wing is its rear edge, where the airflow separated by the leading edge meets.Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 521. Aviation Supplies & Academics, 1997. ...
of the
wing root The wing root is the part of the wing on a fixed-wing aircraft or winged-spaceship that is closest to the fuselage,Peppler, I.L.: ''From The Ground Up'', page 9. Aviation Publishers Co. Limited, Ottawa Ontario, Twenty Seventh Revised Edition, 1 ...
, which needed a corresponding thickening of the wing root; the air intakes were moved to the wing root leading edge, similar to the contemporary
de Havilland Vampire The de Havilland DH100 Vampire is a British jet fighter which was developed and manufactured by the de Havilland, de Havilland Aircraft Company. It was the second jet fighter to be operated by the Royal Air Force, RAF, after the Gloster Meteo ...
. The shorter unusual bifurcated jet pipe reduced pressure losses in the jet pipe and had the additional advantage of freeing up space in the rear fuselage for fuel tanks, which gave the aircraft a longer range than many other early jets.Badrocke 2002. p. 60. The absence of wing fuel tanks also meant a thinner wing could be adopted without the penalty of reduced range; to ease manufacture, the elliptical wingform of the Fury was discarded in favour of a straight
tapered wing The wing configuration or planform of a fixed-wing aircraft (including both glider (aircraft), gliders and powered aeroplanes) is its arrangement of lifting and related surfaces. Aircraft designs are often classified by their wing configuratio ...
design. The fuselage fuel tanks, being fore and aft of the engine, also provided for a stable centre of gravity during flight. The tail plane was raised to clear the jet exhausts. The Sea Hawk also featured a nose wheel
undercarriage Undercarriage is the part of a moving vehicle that is underneath the main body of the vehicle. The term originally applied to this part of a horse-drawn carriage, and usage has since broadened to include: *The landing gear of an aircraft. *The ch ...
arrangement, the first for a Hawker-built aircraft. The aircraft was built to accommodate four 20mm Hispano-Suiza Mk. V
cannon A cannon is a large-caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during th ...
. The redesign had led to a new name for the project, ''P.1040''. The Air Ministry quickly issued its encouragement for Hawker's development of the project but according to aviation author Francis K. Mason, the Air Ministry and the
Admiralty Admiralty most often refers to: *Admiralty, Hong Kong * Admiralty (United Kingdom), military department in command of the Royal Navy from 1707 to 1964 *The rank of admiral *Admiralty law Admiralty can also refer to: Buildings * Admiralty, Tra ...
had initially viewed the project with only academic interest.Mason 1966, pp. 3-4. Official interest had also cooled by the expression of doubts voiced by
Rolls-Royce Limited Rolls-Royce Limited was a British luxury car and later an aero-engine manufacturing business established in 1904 in Manchester by the partnership of Charles Rolls and Henry Royce. Building on Royce's good reputation established with his Crane ( ...
on the viability of the bifurcated jet pipes that the design used.Mason 1966, p. 4. Like the piston-powered Fury it had been derived from, Hawker remained keen to promote the ''P.1040'' to the
Royal Air Force The Royal Air Force (RAF) is the Air force, air and space force of the United Kingdom, British Overseas Territories and Crown Dependencies. It was formed towards the end of the World War I, First World War on 1 April 1918, on the merger of t ...
(RAF) and to the Navy. The P.1040 was intended to be an interceptor, even though a top speed of only 600 mph was forecast. Shortly following the end of the war, the RAF decided to cancel several large orders for Hawker's piston-powered aircraft and to announce that the service would be taking no further interest in the ''P.1040'' proposals. Hawker elected to refine the ''P.1040'' design as a private venture, albeit being prepared with a view for service with British military customers in mind. In October 1945,
Sydney Camm Sir Sydney Camm, CBE, FRAeS (5 August 189312 March 1966) was an English aeronautical engineer who contributed to many Hawker aircraft designs, from the biplanes of the 1920s to jet fighters. One particularly notable aircraft he designed was t ...
, Hawker's chief designer, being satisfied with the results generated from engineering mock-ups and
wind tunnel A wind tunnel is "an apparatus for producing a controlled stream of air for conducting aerodynamic experiments". The experiment is conducted in the test section of the wind tunnel and a complete tunnel configuration includes air ducting to and f ...
testing, authorised a
production order A production order is an order issued within a company to produce a specific quantity of material within a certain timeframe. A production order may be issued pursuant to a sales order, and its issuance triggers a number of events. If components ...
for a prototype by the company's experimental department. In light of the diminished RAF interest in the project, allegedly due to the aircraft offering insufficient advances over the jet fighters that were already in service, such as the
Gloster Meteor The Gloster Meteor was the first British jet fighter and the Allies' only jet aircraft to engage in combat operations during the Second World War. The Meteor's development was heavily reliant on its ground-breaking turbojet engines, pioneere ...
and de Havilland Vampire, in January 1946, a naval version of the P.1040 was offered by Hawker to the Admiralty as a fleet support fighter, as the ''P.1046''.Mason 1991, p. 316. The Admiralty was not enthusiastic, in part due to the development of the jet-powered
Supermarine Attacker The Supermarine Attacker is a British single-seat naval jet fighter designed and produced by aircraft manufacturer Supermarine for the Royal Navy's Fleet Air Arm (FAA). It was the first jet fighter to enter operational service with the FAA.Bing ...
aircraft. The service was however intrigued by the long-range of the ''P.1040'' and the promise of increased power from the Nene engine. In May 1946, the Naval Staff authorised the manufacture of three prototypes and a further test specimen, one of these being the original prototype internally ordered by Hawker, in accordance with Naval Specification N.7/46. Hawker quickly found their development focus for the type being divided between the naval ''P.1046'' and the general-purpose ''P.1040'', which was still hoped to be viable as an RAF fighter. The ''P.1040'' would lead to the eventual development of the land-based
swept wing A swept wing is a wing angled either backward or occasionally forward from its root rather than perpendicular to the fuselage. Swept wings have been flown since the pioneer days of aviation. Wing sweep at high speeds was first investigated in Ge ...
Hawker Hunter The Hawker Hunter is a transonic British jet propulsion, jet-powered fighter aircraft that was developed by Hawker Aircraft for the Royal Air Force (RAF) during the late 1940s and early 1950s. It was designed to take advantage of the newly dev ...
fighter. Swept wing versions ''( P.1052'' and '' P.1081'') were built and experience gained with these were instrumental in developing the design of the Hunter.


Prototypes

On 2 September 1947, the P.1040 prototype, ''VP401'', sometimes referred to as the ''Hawker N.7/46'' after the related naval specification, conducted its maiden flight from
RAF Boscombe Down MOD Boscombe Down ' is the home of a military aircraft testing site, on the south-eastern outskirts of the town of Amesbury, Wiltshire, England. The site is managed by QinetiQ, the private defence company created as part of the breakup of the D ...
, piloted by
Bill Humble William Humble MBE (14 April 1911 – 1 March 1992) was a well-known pre-Second World War aviator, known as an air racer and for his aerobatic displays. He was also an officer in the Royal Air Force Special Reserve, and the Auxiliary Air Force. ...
.James 2002, p. 48. Three days later, ''VP401'' flew to Farnborough to continue trials.Mason 1966, pp. 4-5. A month after the first flight, the existence of the P.1040 was revealed to the general public.Mason 1966, p. 5. Early flight trials encountered aerodynamically related teething problems, such as airframe vibrations and tail buffeting, which led to a redesign of the rear jet pipe fairings and the addition of a bullet-shaped
anti-shock body Anti-shock body is the name given by Richard T. Whitcomb to a pod positioned on the upper surface of a wing. Its purpose is to reduce wave drag while travelling at transonic speeds (Mach 0.8–1.0), which includes the typical cruising range of ...
on the tail. Other minor issues were addressed, including high stick forces and windscreen distortion; ''VP401'' needed long take-off runs which were attributed to the "low-thrust" Nene 1. The Nene 2/Mk.101 for production aircraft would have a higher take-off thrust. On 31 August 1948, a naval prototype, ''VP413'', equipped with folding wings, catapult spools and armament, conducted its first flight. ''VP413'' was quickly subjected to a series of deck assessment trials using a mock-up deck at Boscombe Down. In April 1949, ''VP413'' was transferred to the aircraft carrier to conduct general deck and handling trials at sea. These trials revealed the need for the wing span to be increased by 30 inches, the low-speed handling of the prototype having been found to be lacking. In November 1949, ''VP413'' returned to ''Illustrious'', performing around 25 deck landings without issue. On 17 October 1949, the third prototype, ''VP422'', made its maiden flight. Being representative of the production aircraft, ''VP422'' incorporated a number of modifications as a result of experience gained from trials with the second prototype, these alterations included the fitting of a longer arrester hook when a number of " bolters" were experienced during the early dummy deck trials. After the longer hook was incorporated, this modification was carried though the remaining production runs. Other changes included the addition of fixtures for rocket-assisted take-off gear (RATOG) and
hard point A hardpoint is an attachment location on a structural frame designed to transfer force and carry an external or internal load. The term is usually used to refer to the mounting points (more formally known as a weapon station or station) on t ...
s plumbed for external
drop tank In aviation, a drop tank (external tank, wing tank or belly tank) is used to describe auxiliary fuel tanks externally carried by aircraft. A drop tank is expendable and often capable of being jettisoned. External tanks are commonplace on modern ...
s. On 22 November 1949, Hawker received an initial production contract for 151 aircraft named Sea Hawk. Throughout 1950, both ''VP413'' and ''VP422'' were used for preliminary service trials. ''VP422'', the third prototype, later joined a specially-prepared Vampire Mk 21 in testing the feasibility of operating without an undercarriage, using a flexible deck. Flying from Farnborough, ''VP413'' made the only flight with undercarriage raised from catapult launch to arrested landing on 12 November 1953. This flight was the final phase of the flexible deck project and was the only launch of an aircraft from the slotted tube catapult developed from the slotted tube launchers used for the
V-1 flying bomb The V-1 flying bomb ( "Vengeance Weapon 1") was an early cruise missile. Its official Reich Aviation Ministry () name was Fieseler Fi 103 and its suggestive name was (hellhound). It was also known to the Allies as the buzz bomb or doodlebug a ...
. Although the trials were successful, the project was abandoned when the introduction of more powerful engines obviated the need radically to adapt the design to the concept of combat aircraft without undercarriages. ''VP401'', the first prototype, had continued to serve in the flight test programme and was involved in two significant events prior to its retirement. On 1 August 1949, the Royal Navy entered ''VP401'' in the National Air Races, in which it won the
Society of British Aircraft Constructors A society () is a group of individuals involved in persistent social interaction or a large social group sharing the same spatial or social territory, typically subject to the same political authority and dominant cultural expectations. Soc ...
(SBAC) Challenge Cup Race, beating a Vampire 3 and de Havilland DH.108. ''VP401'' was later converted into a further prototype, the '' Hawker P.1072'', the principal addition being in the form of an auxiliary rocket engine; configured as such, it became the first British rocket-powered aircraft. After a few flights were made in 1950, the rocket engine blew up during a test and although repaired, the airframe was scrapped soon after.James 2002, p. 55.


Production

Immediately following the receipt of the first order in November 1949, Hawker set about establishing a manufacturing line for the Sea Hawk at their
Kingston Kingston may refer to: Places * List of places called Kingston, including the six most populated: ** Kingston, Jamaica ** Kingston upon Hull, England ** City of Kingston, Victoria, Australia ** Kingston, Ontario, Canada ** Kingston upon Thames, ...
facility. Shortly after the outbreak of the
Korean War The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was s ...
, an urgent operational demand for aircraft carriers and aircraft became apparent. The rate of production was substantially increased and more orders for the Sea Hawk were placed.Mason 1966, pp. 5-6. The issuing of a 'Super-Priority' status for the Sea Hawk by
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in 1951, served to speed up production considerably as well as aid the supply of vital materials for its manufacture. To cope with demand, address production shortcomings and cope with the parallel pressure that Hawker was facing for the development of another aircraft, the newer Hunter, it was decided that production would be transferred to a new assembly line run by
Armstrong Whitworth Aircraft Sir W. G. Armstrong Whitworth Aircraft Company, or Armstrong Whitworth Aircraft, was a British list of aircraft manufacturers, aircraft manufacturer. History Armstrong Whitworth Aircraft was established as the Aerial Department of the Armstrong ...
, part of the Hawker group, at
Coventry Coventry ( or rarely ) is a City status in the United Kingdom, cathedral city and metropolitan borough in the West Midlands (county), West Midlands county, in England, on the River Sherbourne. Coventry had been a large settlement for centurie ...
.Mason 1966, p. 6. Prior to the transfer, 35 Sea Hawk F1, the initial production standard, were completed at Kingston. On 14 November 1951, the first production Sea Hawk F1, ''WF143'', conducted its maiden flight. It possessed a 39 ft (12 m) wingspan and a tailplane of increased area. The first Coventry-built Sea Hawk F1 made its first flight prior to the end of 1953; a total of 60 would be produced. While some of the initial batch of Sea Hawks would see operational service, many of the F1s would be used for various service trials. Amongst these, ''WF143'' would later be rebuilt as the prototype for the Sea Hawk F2, featuring power-assisted
aileron An aileron (French for "little wing" or "fin") is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft. Ailerons are used in pairs to control the aircraft in roll (or movement aroun ...
s in place of their unpowered counterparts on the F1, to which flight trials had demonstrated a weakness in lateral control leading to instances of oscillation. On 24 February 1954, the first production Sea Hawk F2, ''WF240'', conducted its maiden flight at
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. A total of 40 F2 aircraft would be produced. Another Sea Hawk F1, ''WF157'', was developed into a prototype for the FB 3 standard, the initial
fighter bomber A fighter-bomber is a fighter aircraft that has been modified, or used primarily, as a light bomber or attack aircraft. It differs from bomber and attack aircraft primarily in its origins, as a fighter that has been adapted into other roles, wh ...
variant of the type and later most common of the Sea Hawk variants. To suit this role, much of the development work went into its range of external stores, although the clearance of these for service was disrupted by a lack of Royal Navy personnel. On 13 March 1954, the first production Sea Hawk FB 3, ''WF280'', made its first flight. A more refined Sea Hawk FGA 4 variant followed, partially to remedy stores handling problems that had been experienced with the FB 3 variant; the first FB 4 aircraft, ''WV792'' conducted its first flight on 26 August 1954.Mason 1966, p. 7. In 1950, it was acknowledged that the Nene 101 engine was transitional powerplant; upon availability of the 4 per cent more powerful Nene 103, the Admiralty quickly ordered many of its Sea Hawk FB 3 and FGA 4 to be re-engined. Another two Sea Hawk variants were developed; the first of these, the FB 5, was more or less identical to the FB 3 apart from the newer, more powerful Nene 103 engine, which greatly improving the aircraft's low-speed handling and take-off performance. The final Sea Hawk standard, FGA 6, was a fighter ground-attack variant, the same as its ''FB 5'' predecessor, though they were new-build aircraft rather than re-engined ones. A total of just under 90 FGA 6s were completed.


Design

The F 1 was armed with four 20 mm (.79 in) Hispano Mk V cannons. It was powered by a 5,000 lbf (22 kN) thrust Rolls-Royce Nene 101 centrifugal flow turbojet engine. The Nene engine was viewed as underpowered; in 1950, the government had cancelled development of the Rolls-Royce Tay, an
afterburner An afterburner (or reheat in British English) is an additional combustion component used on some jet engines, mostly those on military supersonic aircraft. Its purpose is to increase thrust, usually for supersonic flight, takeoff, and combat ...
-equipped development of the Nene, leaving no more powerful engines to equip the Sea Hawk. More minor developments of the Nene engine were developed and were adopted on the aircraft, providing for some increase in power. The F 1 had a maximum speed of 599 mph (964 km/h) at sea level and a range of 800 mi (1,287 km) on internal fuel. A more refined fighter variant was the F 2, which introduced power-boosted aileron controls as well as other modifications, including to its structure. The next variant of the Sea Hawk was developed into a fighter-bomber, the FB 3, and differed only slightly from its predecessors; its structure being strengthened to allow it to carry a wider array of equipment and weaponry on its four hard points, these included
rocket A rocket (from , and so named for its shape) is a vehicle that uses jet propulsion to accelerate without using any surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely ...
s,
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s,
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,
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, reconnaissance cameras, external drop tanks and fixtures for RATOG.Mason 1966, pp. 6-7. Unlike its rival, the Supermarine Attacker, which had been the first jet aircraft to enter service with the FAA, the Sea Hawk had a
tricycle undercarriage Tricycle gear is a type of aircraft undercarriage, or ''landing gear'', that is arranged in a tricycle fashion. The tricycle arrangement has one or more nose wheels in a single front undercarriage and two or more main wheels slightly aft of th ...
rather than a tail-wheel, making it easier to land on carriers, it was also Hawker's first aircraft to incorporate a nose-wheel undercarriage. The Sea Hawk had adopted a fairly conventional design, being built with straight wings while a number of other contemporary aircraft, such as the
F-86 Sabre The North American F-86 Sabre, sometimes called the Sabrejet, is a transonic jet fighter aircraft. Produced by North American Aviation, the Sabre is best known as the United States' first swept-wing fighter that could counter the swept-wing Sov ...
, had adopted swept wings. The Sea Hawk was a reliable and elegant aeroplane, though its cautious design meant it would only be attractive on the export market and be in production for only a short period before being superseded by more advanced aircraft.


Operational history

The first production Sea Hawk was the ''F 1'', which first flew in 1951, entered service two years later with 806 Squadron, first based at Brawdy, then transferred to . All Sea Hawks were in service by the mid-1950s and eventually over 500 were built.Green 1982, p. 49. During service evaluations of the Sea Hawk, Australian and Canadian naval pilots flew the aircraft leading to official suggestions that the aircraft would be chosen by the two countries.Mason 1966, pp. 8–9. Both nations were also interested in new American-built naval aircraft; only a handful of Sea Hawks were transferred to either nation, some operating from the flight deck of the Australian ''Majestic''-class aircraft carrier , though these did not enter full squadron service.Mason 1966, p. 9. In 1956, shortly after the termination of the Sea Hawk production line, the
Federal Republic of Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen constituent states have a total population of over 84 ...
placed an order for 68 aircraft to equip the ''
Bundesmarine The German Navy (, ) is part of the unified (Federal Defense), the German Armed Forces. The German Navy was originally known as the ''Bundesmarine'' (Federal Navy) from 1956 to 1995, when ''Deutsche Marine'' (German Navy) became the official ...
'', the West German navy, considering them good value for money.Mason 1991, p. 366. The Bundesmarine had a requirement for a day fighter-bomber and one with an all-weather capability; 34 aircraft of each variant were ordered, the ''Mk 100'' limited to good weather, and the ''Mk 101'' equipped with a pod-based EKCO-built
search radar This is a list of different types of radar. Detection and search radars Search radars scan great volumes of space with pulses of short radio waves. They typically scan the volume two to four times a minute. The radio waves are usually less than a ...
for sea reconnaissance in all weathers. The German Sea Hawks served into the mid-1960s, until replaced by the
F-104 Starfighter The Lockheed F-104 Starfighter is an American single-engine, supersonic interceptor. Created as a day fighter by Lockheed as one of the " Century Series" of fighter aircraft for the United States Air Force (USAF), it was developed into an all ...
. The
Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
placed an order for 30 aircraft, as the ''Sea Hawk Mk 50'', a ground-attack variant for the
Royal Netherlands Navy The Royal Netherlands Navy (, ) is the Navy, maritime service branch of the Netherlands Armed Forces. It traces its history to 8 January 1488, making it the List of navies, third-oldest navy in the world. During the 17th and early 18th centurie ...
, which was financed by
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
funding. The Mk 50 was externally similar to the Royal Navy aircraft, differing in its use of a
Philips Koninklijke Philips N.V. (), simply branded Philips, is a Dutch multinational health technology company that was founded in Eindhoven in 1891. Since 1997, its world headquarters have been situated in Amsterdam, though the Benelux headquarter ...
-built
ultra high frequency Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter ...
(UHF) radio; Dutch Sea Hawks were later equipped to each carry a pair of
AIM-9 Sidewinder The AIM-9 Sidewinder is a short-range air-to-air missile. Entering service with the United States Navy in 1956 and the Air Force in 1964, the AIM-9 is one of the oldest, cheapest, and most successful air-to-air missiles. Its latest variants rema ...
infrared Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with the waves that are just longer than those ...
-guided
air-to-air missile An air-to-air missile (AAM) is a missile fired from an aircraft for the purpose of destroying another aircraft (including unmanned aircraft such as cruise missiles). AAMs are typically powered by one or more rocket motors, usually solid-fuel roc ...
s. Between 1957 and 1964, the Dutch Navy operated 22 aircraft.James 1982, p. 66. The last export customer was India which ordered 24 new Sea Hawks and 12 refurbished ex-FAA Mk 6s in 1959, following up with 30 additional airframes reconstructed from West German stocks, among others.


Combat record

The Sea Hawk saw extensive service during the
Suez Crisis The Suez Crisis, also known as the Second Arab–Israeli War, the Tripartite Aggression in the Arab world and the Sinai War in Israel, was a British–French–Israeli invasion of Egypt in 1956. Israel invaded on 29 October, having done so w ...
, when joint Anglo-French forces invaded Egypt on 31 October 1956 in Operation Musketeer. Six Sea Hawk squadrons took part, two aboard the fleet carrier HMS ''Eagle'' and two each aboard the light fleet carriers and . The Sea Hawks were primarily used for ground attack. Due to aircraft such as the Hunter lacking the range or clearance to deliver munitions, the British ground attack capability during the conflict comprised the navy Sea Hawks and the Westland Wyverns of 830 Squadron, typically being escorted by
de Havilland Sea Venom The de Havilland DH.112 Sea Venom is a British postwar carrier-capable jet aircraft developed from the de Havilland Venom. It served with the Royal Navy Fleet Air Arm and with the Royal Australian Navy. The French Navy operated the Aquilon, ...
fighters.Mason 1966, p. 8. Sea Hawks launched many attacks upon Egyptian shore-based targets, often against massed anti-aircraft fire, resulting in several aircraft being severely damaged. The Suez Crisis was to be the last Sea Hawk combat operation with the Royal Navy, as new strike aircraft such as the
de Havilland Sea Vixen The de Havilland DH.110 Sea Vixen is a British twin-engine, twin boom-tailed, two-seat, carrier-based fleet air-defence fighter flown by the Royal Navy's Fleet Air Arm from the 1950s to the early 1970s. The Sea Vixen was designed by the de Havi ...
and the
Supermarine Scimitar The Supermarine Scimitar was a British single-seat naval strike aircraft. Operated exclusively by the Royal Navy's Fleet Air Arm, it was the final aircraft to be entirely designed and manufactured by Supermarine.Andrews and Morgan 1981, p. 297. ...
were introduced after the conflict. In the Royal Netherlands Navy, the Sea Hawk served aboard the Dutch aircraft carrier , ex-, including the decolonization operations guarding against Indonesian threats in the area. From 1959 they were equipped with Sidewinder missiles significantly enhancing their air-to-air combat capabilities. In 1961, the Sea Hawks that served on her were moved ashore when the Dutch commitment to NATO was changed to maritime patrol using ASW aircraft; by October 1964 they had been taken out of service. In Indian Navy service (beginning in 1960) Sea Hawks were used aboard the aircraft carrier , ex-HMS ''Hercules'' and saw service during the Indo-Pakistani War of 1965 and the Indo-Pakistani War of 1971. In the latter war, Sea Hawks sank about a dozen vessels, comprising
Pakistan Navy The Pakistan Navy (PN) (; ''romanized'': Pākistān Bahrí'a; ) is the naval warfare branch of the Pakistan Armed Forces. The Chief of the Naval Staff, a four-star admiral, commands the navy and is a member of the Joint Chiefs of Staff Com ...
gunboat A gunboat is a naval watercraft designed for the express purpose of carrying one or more guns to bombard coastal targets, as opposed to those military craft designed for naval warfare, or for ferrying troops or supplies. History Pre-steam ...
s and
cargo ship A cargo ship or freighter is a merchant ship that carries cargo, goods, and materials from one port to another. Thousands of cargo carriers ply the world's List of seas, seas and Ocean, oceans each year, handling the bulk of international trade. ...
s, in
East Pakistan East Pakistan was the eastern province of Pakistan between 1955 and 1971, restructured and renamed from the province of East Bengal and covering the territory of the modern country of Bangladesh. Its land borders were with India and Burma, wit ...
waters (now
Bangladesh Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world and among the List of countries and dependencies by ...
) without losing an aircraft. They were supported by Breguet Alizé aircraft which sank three gunboats. The Sea Hawk was withdrawn from Indian Navy service in 1983, being replaced by the far more capable
BAE Sea Harrier The British Aerospace Sea Harrier is a naval short take-off and vertical landing/ vertical take-off and landing jet fighter, reconnaissance and attack aircraft. It is the second member of the Harrier family developed. It first entered serv ...
.


Retirement

The Sea Hawks in Fleet Air Arm service began being removed from first line service in 1958, the year in which the Supermarine Scimitar and de Havilland Sea Vixen entered service, both of which types would eventually replace the Sea Hawk. The last front line Sea Hawk squadron, No. 806, disbanded at RNAS Brawdy on 15 December 1960, ending a very brief operational career for the Sea Hawk. Most Sea Hawks in second line service were withdrawn by the mid-1960s. The last operational Royal Navy Sea Hawks were FGA.6 flown by the Airwork Limited managed "black"
Fleet Requirements Unit The Airwork Fleet Requirements Unit (FRU) was a civilian-operated unit of the Royal Navy's Fleet Air Arm managed by Airwork Services, Airwork Limited. It was established on the 1 September 1952, at Hurn Airport, operating for 20 years before m ...
based at Bournemouth (Hurn) Airport which retired the type in 1969.


Variants

;P.1040 * ''VP401'' prototype first flown at Boscombe Down on 2 September 1947, later converted to a P.1072 * ''VP413'' navalised prototype to specification N.7/46 first flown at Farnborough 3 September 1948. * ''VP422'' second-naval prototype first flown at Farnborough 17 October 1949. ;Sea Hawk F1 :Production fighters powered by a
Rolls-Royce Nene The Rolls-Royce RB.41 Nene is a 1940s British centrifugal compressor turbojet engine. The Nene was a complete redesign, rather than a scaled-up Rolls-Royce Derwent,"Rolls-Royce Aero Engines" Bill Gunston, Patrick Stephens Limited 1989, , p.111 ...
Mk 101 engine; 95 built (35 by Hawker Aircraft at Kingston upon Thames, the remainder and all subsequent production by Armstrong Whitworth Aircraft at Baginton, Coventry) ;Sea Hawk F2 :Production fighter with powered ailerons; 40 built by Armstrong Whitworth. ;Sea Hawk FB 3 :Fighter-bomber variant with stronger wing for external stores; 116 built. ;Sea Hawk FGA 4 :Fighter/Ground attack variant; 97 built. ;Sea Hawk FB 5 :FB3 fitted with the Nene Mk 103; 50 conversions. ;Sea Hawk FGA 6 :FGA4 with the Nene Mk 103; total of 101 (86 new-build, the remainder converted from FB3 and FGA 4 examples). ;Sea Hawk Mk 50 :Export variant based on the FGA 6 for the Royal Netherlands Navy; 22 built. ;Sea Hawk Mk 100 :Export variant for the West German Navy, similar to FGA 6 but fitted with taller fin and rudder; 32 built ;Sea Hawk Mk 101 :All-weather export variant for the West German Navy, as Mk 100 but fitted with a search radar in an underwing pod; 32 built.


Operators

* * * *


Surviving aircraft

Thirty-six complete Sea Hawks (plus eight cockpit sections) are known to survive , mainly in a variety of locations in the United Kingdom, though others are located abroad, including in Germany,
Malta Malta, officially the Republic of Malta, is an island country in Southern Europe located in the Mediterranean Sea, between Sicily and North Africa. It consists of an archipelago south of Italy, east of Tunisia, and north of Libya. The two ...
, the Netherlands and India. One Sea Hawk, ''WV908'', remained airworthy as part of the
Royal Navy Historic Flight The Royal Navy Historic Flight (RNHF) was the historic flight of the Fleet Air Arm of the Royal Navy up until its disbandment in March 2019. The RNHF maintained and flew a small number of aircraft that were important to British Naval aviation. Th ...
until 2010. In June 2022, it was announced that, after several years in storage at
RAF Shawbury Royal Air Force Shawbury, otherwise known as RAF Shawbury, is a Royal Air Force station near the village of Shawbury in Shropshire in the West Midlands of England. History The First World War The station at Shawbury was first used for milita ...
, ''WV908'' would be restored to flying condition at Yeovilton. * ''WF225'' (Sea Hawk F 1) is displayed as 'gate guardian' at
RNAS Culdrose (HMS Seahawk) Royal Naval Air Station Culdrose (RNAS Culdrose, also known as HMS ''Seahawk''; ICAO: EGDR) is a Royal Navy airbase located beside the town of Helston, situated on the Lizard Peninsula in southern Cornwall, England, United Kingdom. The airbas ...
, England. * ''WF259'' (Sea Hawk F 2) is stored at the
National Museum of Flight The National Museum of Flight is Scotland's national aviation museum, at East Fortune Airfield, just south of the village of East Fortune, Scotland. It is one of the museums within National Museums Scotland. The museum is housed in the origi ...
, East Fortune, Scotland. * ''WM913'' (Sea Hawk FB 5) is displayed at the
Newark Air Museum Newark Air Museum is an air museum located on a former Royal Air Force station at Winthorpe, near Newark-on-Trent in Nottinghamshire, England. The museum contains a variety of aircraft. History The airfield was known as RAF Winthorpe durin ...
, Newark, England. * ''WM961'' (Sea Hawk FB 5) is displayed at Caernarfon Air World, Caernarfon, Wales. * ''WM969'' (Sea Hawk FB 5) is displayed in Hangar 3 at the
Imperial War Museum The Imperial War Museum (IWM), currently branded "Imperial War Museums", is a British national museum. It is headquartered in London, with five branches in England. Founded as the Imperial War Museum in 1917, it was intended to record the civ ...
, Duxford, England. * ''WN108'' (Sea Hawk FB 5) is displayed by the Ulster Aviation Society at Maze Long Kesh, Lisburn, Northern Ireland. * ''WV797'' (Sea Hawk FGA 6) is displayed at the
Midland Air Museum The Midland Air Museum (MAM) is situated just outside the village of Baginton in Warwickshire, England, and is adjacent to Coventry Airport. The museum includes the ''Sir Frank Whittle Jet Heritage Centre'' (named after the local aviation pi ...
, Coventry, England. * ''WV826'' (Sea Hawk FGA 6) is displayed at the
Malta Aviation Museum Malta Aviation Museum is an aircraft museum situated on the site of the former Royal Air Force airfield in the village of Ta'Qali, on the island of Malta. The museum, based in three hangars, covers the history of aviation on the island with exh ...
, Ta'qali, Malta. * ''WV856'' (Sea Hawk FGA 6) is displayed at
Fleet Air Arm Museum The Fleet Air Arm Museum is devoted to the history of British naval aviation. It has an extensive collection of military and civilian aircraft, aero engines, models of aircraft and Royal Navy ships (especially aircraft carriers), and paintings ...
, Yeovilton, England. * ''WV865'' (Sea Hawk FGA 6) is displayed at the
Luftwaffe Museum The Luftwaffe () was the aerial-warfare branch of the before and during World War II. Germany's military air arms during World War I, the of the Imperial Army and the of the Imperial Navy, had been disbanded in May 1920 in accordance w ...
, Gatow, Germany. * ''WV908'' (Sea Hawk FGA 6) was airworthy with the
Royal Navy Historic Flight The Royal Navy Historic Flight (RNHF) was the historic flight of the Fleet Air Arm of the Royal Navy up until its disbandment in March 2019. The RNHF maintained and flew a small number of aircraft that were important to British Naval aviation. Th ...
, Yeovilton, England until 2010. * ''XE327'' (Sea Hawk FGA 6) is displayed at
Hermeskeil Hermeskeil () is a city in the Trier-Saarburg district, in Rhineland-Palatinate, Germany. It is situated in the Hunsrück, approx. 25 km southeast of Trier. Its population is about 5,900. Data Hermeskeil is the seat of the ''Verbandsgemeind ...
, Germany. * ''XE489'' (Sea Hawk FGA 6) is displayed at the Gatwick Aviation Museum,
Charlwood Charlwood is a village and civil parish in the Mole Valley district of Surrey, England. It is immediately north-west of London Gatwick Airport in West Sussex, close west of Horley and north of Crawley. The historic county boundary between Sur ...
, England. * XE368 (Sea Hawk FGA 6) is located on a private farm in Market Harborough pending restoration. * ''118'' (Sea Hawk Mk 50) is displayed at
De Kooy De Kooy is a hamlet in the Dutch province of North Holland. It is a part of the municipality of Den Helder Den Helder () is a municipality and a city in the Netherlands, in the province of North Holland. Den Helder occupies the northernmost ...
, the Netherlands. * ''131'' (Sea Hawk Mk 50) is displayed at the
Nationaal Militair Museum The Nationaal Militair Museum (NMM) is a military museum in Soesterberg, Netherlands. It focuses on the history of the Dutch Armed Forces with emphasis on the Royal Netherlands Army and the Royal Netherlands Air Force. The Stichting Koninklijke D ...
,
Soesterberg Soesterberg is a town in the Dutch province of Utrecht. It is a part of the municipality of Soest, and lies about 5 km northeast of Zeist, on the road between Amersfoort and Utrecht. It was the location of Soesterberg Air Base History T ...
, the Netherlands. * ''IN-154'' (Sea Hawk FGA 6) is displayed in
INS Garuda INS Garuda , is an Indian naval air station located in Kochi, in the state of Kerala. Commissioned on 11 May 1953, it is the oldest operating air station of the Indian Navy. The air station is adjacent to INS Venduruthy and the headquarters of ...
Naval Air Station, Cochin, Kerala, India * ''IN-172'' (Sea Hawk FGA 6) is displayed in
Cochin Kochi ( , ), formerly known as Cochin ( ), is a major port city along the Malabar Coast of India bordering the Laccadive Sea. It is part of the district of Ernakulam in the state of Kerala. The city is also commonly referred to as Ernaku ...
,
Kerala Kerala ( , ) is a States and union territories of India, state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile ...
, India. * ''IN-174'' (Sea Hawk FGA 6) is displayed at Jawahar Bal Bhavan, Museum Road,
Trivandrum Thiruvananthapuram ( ), also known as Trivandrum, is the capital city of the Indian state of Kerala. As of 2011, the Thiruvananthapuram Municipal Corporation had a population of 957,730 over an area of 214.86 sq. km, making it the largest and ...
,
Kerala Kerala ( , ) is a States and union territories of India, state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile ...
, India. * ''IN-188'' (Sea Hawk FGA 6) was displayed at the INS ''Vikrant'' Museum, Mumbai, India. It's currently in storage. * ''IN-195'' (Sea Hawk FGA 6) is stored at
INS Garuda INS Garuda , is an Indian naval air station located in Kochi, in the state of Kerala. Commissioned on 11 May 1953, it is the oldest operating air station of the Indian Navy. The air station is adjacent to INS Venduruthy and the headquarters of ...
Naval Air Station, Cochin, Kerala, India * ''IN-231'' (Sea Hawk Mk 100) is stored at
INS Garuda INS Garuda , is an Indian naval air station located in Kochi, in the state of Kerala. Commissioned on 11 May 1953, it is the oldest operating air station of the Indian Navy. The air station is adjacent to INS Venduruthy and the headquarters of ...
Naval Air Station, Cochin, Kerala, India * ''IN-234'' (Sea Hawk Mk 100) is displayed at the Naval Aviation Museum, Goa, India * ''IN-235'' (Sea Hawk Mk 100) is displayed at the Aeronautical Engineering Dept at Indian Institute Of Technology - Madras, Chennai (Madras), Tamil Nadu, India * ''IN-238'' (Sea Hawk Mk.100) is displayed at
Aeronauticum Aeronauticum is the official German maritime aircraft museum – located in Nordholz (close to Cuxhaven, Lower Saxony). The museum has a large collection of aircraft that has been used by the German Marine/Navy, among other places also in the a ...
, Nordholz, Germany * ''IN-240'' (Sea Hawk Mk 100) is displayed at the Victory at Sea Memorial, Beach Road, Visakhapatnam, Andhra Pradesh, India. * ''IN-244'' (Sea Hawk Mk 100) is displayed as a gate guardian in front of the Naval Armament Depot in the town of Marmagoa, Goa, India * ''IN-246'' (Sea Hawk Mk 100) was displayed at the INS ''Vikrant'' Museum, Mumbai, India. It's currently in storage. * ''IN-252'' (Sea Hawk Mk 100) is displayed in the Aeronautical Engineering Dept at
Madras Institute of Technology Madras Institute of Technology (MIT) is an engineering institute located in Chromepet, Chennai, India. It is one of the four autonomous constituent colleges of Anna University. It was established in 1949 by Chinnaswami Rajam as the first sel ...
, Chennai (Madras), Tamil Nadu, India * ''IN-xxx'' "Unknown Serial" is Displayed at
National Defence Academy The National Defence Academy (NDA) is the joint defence service training institute of the Indian Armed Forces. Here, cadets of the Indian Army, Indian Navy, and Indian Air Force train together before they go on to their respective service a ...
Khadakvasla, Pune, India.


Specifications (Sea Hawk FGA.6)


See also


Notes


Bibliography

* Badrocke, Mike. "Hawker's First Jet: Database, Hawker Sea Hawk." ''Aeroplane'', September 2002. * Brown, Eric, Captain. "The Sea Hawk ...Epitome of Elegance." ''Air International'', Volume 23, no. 6, December 1982. * Buttler, Tony. ''Hawker Sea Hawk'' (Warpaint No.29). Denbigh East, Bletchley, UK: Hall Park, 2001. . * * Green, William, ed. "Hawker Sea Hawk: Fighter A-Z." ''Air International'', Volume 23, no. 1, July 1982. * Green, William and Gordon Swanborough. ''The Great Book of Fighters''. St. Paul, Minnesota: MBI Publishing, 2001. . * Hannah, Donald. ''Hawker FlyPast Reference Library''. Stamford, Lincolnshire, UK: Key Publishing Ltd., 1982. . * James, Derek N. ''Hawker, an Aircraft Album No.5''. New York: Arco Publishing Company, 1973. . (First published in the UK by Ian Allan in 1972) * James, Derek N. "Type History: Database, Hawker Sea Hawk." ''Aeroplane'', September 2002. * Mason, Francis K. ''The British Fighter since 1912''. London: Putnam, 1979. . * Mason, Francis K. ''Hawker Aircraft since 1920''. London: Putnam, 1991. . * Mason, Francis K. ''The Hawker Sea Hawk''. Leatherhead, Surrey, UK: Profile Publications Ltd., 1966. * Ovčáčík, Michal and Karel Susa. ''Hawker Sea Hawk''. Praha-Strašnice, Czech Republic: Mark I Ltd., 2001. . * Smith, John T. ''Wrath of a Mythical Monster: Westland Wyvern Operations in the Suez Campaign''. Air Enthusiast No 74 Mar/Apr 1998. * Taylor, John W.R. "Hawker Sea Hawk." ''Combat Aircraft of the World from 1909 to the present''. New York: G.P. Putnam's Sons, 1969. . * * Wixey, Ken. "Sea Hawk" ''Aircraft Modelworld'' August 1985.


External links


Thunder and Lightnings

Sound of a Sea Hawk flypast


a 1949 ''Flight'' article {{Authority control 1940s British fighter aircraft Carrier-based aircraft Sea Hawk Mid-wing aircraft Single-engined jet aircraft Aircraft first flown in 1947