CAC CA-4
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CAC CA-4
The CA-4 Wackett Bomber and CA-11 Woomera were prototype twin-engine light bombers, including torpedo and dive-bombing capabilities, developed by Commonwealth Aircraft Corporation (CAC) in Australia, during World War II. While two prototypes were completed and flight tested by the Royal Australian Air Force (RAAF), was an order for the Woomera was cancelled before it went into production. Design and development Background In early 1939, the Australian Government ordered large numbers of Bristol Beaufort bombers, with major components to be built by its Department of Aircraft Production (DAP) in a variety of locations, including railway workshops, and in doing so it by-passed the local aircraft company, the Commonwealth Aircraft Corporation. CAC, under Sir Lawrence Wackett, began work on its own design, hoping to out-perform the Beaufort by building a machine that could serve as both a torpedo-bomber and dive bomber. To keep down weight, Wackett dispensed with traditional self-se ...
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Light Bomber
A light bomber is a relatively small and fast type of military bomber aircraft that was primarily employed before the 1950s. Such aircraft would typically not carry more than one ton of ordnance. The earliest light bombers were intended to drop their bombs in level flight over a target. During World War I some air forces began to distinguish between light bombers and the earliest purpose-built attack aircraft which carried out ground attack, close air support, anti-shipping and similar missions. After World War I, attack aircraft were typically identifiable by their ability to carry multiple fixed machine guns, automatic cannons and rockets in addition to bombs. Light bombers have often served as attack aircraft and vice versa. Purpose-built light bombers disappeared from military aviation by the end of World War II, as advancements in propulsion and aeronautical design enabled newer attack/strike aircraft, fighter-bombers, and multirole aircraft types to deliver equal ...
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Douglas Boston
The Douglas A-20 Havoc (company designation DB-7) is an American light bomber, attack aircraft, Intruder (air combat), night intruder, night fighter, and reconnaissance aircraft of World War II. Designed to meet an Army Air Corps requirement for a bomber, it was ordered by France for their air force before the USAAC decided it would also meet their requirements. French DB-7s were the first to see combat; after the fall of France, the bomber served with the Royal Air Force under the British military aircraft designation systems#Names, service name Boston. From 1941, night fighter and Intruder (air combat), intruder versions were given the service name Havoc. In 1942 USAAF A-20s saw combat in North Africa. It served with several Allies of World War II, Allied air forces, principally the United States Army Air Forces (USAAF), the Soviet Air Forces (''VVS''), Soviet Naval Aviation (''AVMF''), and the Royal Air Force (RAF) of the United Kingdom. A total of 7,478 aircraft were built, o ...
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Aerial Torpedo
An aerial torpedo (also known as an airborne torpedo or air-dropped torpedo) is a torpedo launched from a torpedo bomber aircraft into the water, after which the weapon propels itself to the target. First used in World War I, air-dropped torpedoes were used extensively in World War II, and remain in limited use. Aerial torpedoes are generally smaller and lighter than submarine- and surface-launched torpedoes. History Origins The idea of dropping lightweight torpedoes from aircraft was conceived in the early 1910s by Bradley A. Fiske, an officer in the United States Navy.Hopkins, Albert Allis. ''The Scientific American War Book: The Mechanism and Technique of War'', Chapter XLV: Aerial Torpedoes and Torpedo Mines. Munn & Company, Incorporated, 1915 A patent for this was awarded in 1912.Hart, Albert Bushnell. ''Harper's pictorial library of the world war, Volume 4''. Harper, 1920, p. 335. Fiske worked out the mechanics of carrying and releasing the aerial torpedo from a bom ...
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Mark 13 Torpedo
The Mark 13 torpedo was the U.S. Navy's most common aerial torpedo of World War II. It was the first American torpedo to be originally designed for launching from aircraft only. They were also used on PT boats. Design Originating in a 1925 design study, the Mark 13 was subject to changing USN requirements through its early years with resulting on-and-off development. Early models—even when dropped low to the water at slow speeds—were prone to running on the surface, or not running at all. By late 1944, the design had been modified to allow reliable drops from as high as , at speeds up to . The final Mark 13 weighed ; of the high explosive Torpex.NavWeaps (18 February 2005).USA Torpedoes of WWII. Retrieved 2 August 2005. The Mark 13 was designed with unusually squat dimensions for its type: diameter was and length . In the water, the Mark 13 could reach a speed of for up to . The Mark 13 ran slower than the Mark 14 torpedo, a characteristic which, along wi ...
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British 18-inch Torpedo
There have been a number of 18-inch (45cm) torpedoes in service with the Royal Navy of the United Kingdom. These have been used on ships of the Royal Navy and aircraft of both the Fleet Air Arm and Royal Air Force, while Royal Navy surface ships and submarines use 21-inch torpedoes. The British 18-inch torpedoes were in diameter, beginning with the "Fiume" Whitehead torpedo of 1890. Fiume Mark I Purchased from Whitehead with the first delivery in 1890, and a second delivery in 1891. The weapon utilized compressed air propulsion, and was prolific for its time, having been exported to multiple other navies across the world. The decision to adopt the 18-inch torpedo caliber was made by the Admiralty in 1889, with the Fiume Mark I being the first weapon of the type, soon thereafter followed by the RGF Mark I. In 1890, Whitehead established a torpedo factory in Weymouth, chiefly for the export market - but also in order to directly supply the Royal Navy with locally-manufactu ...
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Vickers K Machine Gun
The Vickers K machine gun, known as the Vickers Gas Operated (Vickers G.O.) or Gun, Machine, Vickers G.O. .303-inch in British service, was a rapid-firing machine gun developed and manufactured for use in aircraft by Vickers-Armstrongs. The high rate of fire was needed for the short period of time when the gunner would be able to fire at an attacking aircraft. The weapon was adopted for land use during World War II. Development The Vickers K was a development of the Vickers-Berthier (VB) light machine gun, adopted in 1932 by the British Indian Army, Indian Army.Weeks, John, ''World War II Small Arms'', New York: Galahad Books (1979), , p. 88-89 The VB, like the Bren light machine gun, used a locking Tilting bolt , tilting breechblock. Unlike the Bren, the VB locked its breech only at the last moment of forward travel. With lighter moving parts and the VB locking design, the Vickers K had an adjustable rate of fire between 950 and 1,200 rounds per minute; faster than the German M ...
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Autocannon
An autocannon, automatic cannon or machine cannon is a automatic firearm, fully automatic gun that is capable of rapid-firing large-caliber ( or more) armour-piercing, explosive or incendiary ammunition, incendiary shell (projectile), shells, as opposed to the smaller-caliber kinetic projectiles (bullets) fired by a machine gun. Autocannons have a longer effective range and greater terminal ballistics, terminal performance than machine guns, due to the use of larger/heavier munitions (most often in the range of , but bigger calibers also exist), but are usually smaller than tank guns, howitzers, field guns, or other artillery. When used on its own, the word "autocannon" typically indicates a non-rotary weapon with a single gun barrel, barrel. When multiple rotating barrels are involved, such a weapon is referred to as a "rotary autocannon" or "rotary cannon". If it uses a single barrel with a rotating cylinder with multiple chambers, it is known as a "revolver autocannon" or ...
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Hispano-Suiza HS
Hispano-Suiza () is a Spanish automotive company. It was founded in 1904 by Marc Birkigt and as an automobile manufacturer and eventually had several factories in Spain and France that produced luxury cars, aircraft engines, trucks and weapons. In 1923, its French luxury car arm became a semi-autonomous partnership with the Spanish parent company. In 1946, the parent company sold all of its Spanish automotive assets to Enasa, a Spanish state-owned vehicle manufacturer, and the French arm continued as an independent aviation engine and components manufacturer under the Hispano-Suiza name. In 1968, Hispano-Suiza was taken over by the aerospace company Snecma, which is now part of the French Safran Group. The relaunch of Hispano Suiza Cars has been made by the same founding family (4th generation of the Suqué Mateu Family), the company is part of the Peralada Group (owned as well by the Suqué Mateu family) in 2019 with a fully-electric 1,119 HP hypercar called Hispano-Suiza ...
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M1919 Browning Machine Gun
The M1919 Browning is a .30-06 Springfield, .30 caliber medium machine gun that was widely used during the 20th century, especially during World War II, the Korean War, and the Vietnam War. The M1919 saw service as a light infantry, coaxial weapon, coaxial, mounted, aircraft, and anti-aircraft machine gun by the U.S and many other countries. The M1919 was an air-cooled development of the standard U.S. machine gun of World War I, the John Browning, John M. Browning-designed water-cooled M1917 Browning machine gun, M1917. The emergence of general-purpose machine guns in the 1950s pushed the M1919 into secondary roles in many cases, especially after the arrival of the M60 machine gun, M60 in US Army service. The United States Navy also converted many to 7.62 mm NATO and designated them Mk 21 Mod 0; they were commonly used on riverine craft in the 1960s and 1970s in Vietnam. Many NATO countries also converted their examples to 7.62 mm caliber, and these remained in service well ...
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Pratt & Whitney R-1830-S3C3-G Twin Wasp
The Pratt & Whitney R-1830 Twin Wasp is an American air-cooled radial aircraft engine. It has 14 cylinders, arranged in two rings of seven. It displaces and its bore and stroke are both . The design traces its history to 1929 experiments at Pratt & Whitney on twin-row designs. Production began in 1932 and it was widely used during the 1930s. It was selected as the power plant for both the four-engined Consolidated B-24 Liberator heavy bomber and the twin-engined Douglas DC-3 transport, two of the most-produced aircraft. The production run of 173,618 R-1830 examples makes it the most-produced aviation engine in history. A further developed version, the R-2000, was produced starting in 1942. The R-2000 was "bored-out" to and had a number of other minor changes to improve fuel economy and allow it to run at higher power ratings on lower-octane fuel. The primary user of the R-2000 was the Douglas DC-4. Mostly retired today, the R-1830 is still used on Douglas DC-3 and var ...
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NACA Airfoil
The NACA airfoil series is a set of standardized airfoil shapes developed by this agency, which became widely used in the design of aircraft wings. Origins NACA initially developed the numbered airfoil system which was further refined by the United States Air Force at Langley Research Center. According to the NASA website: Four-digit series The NACA four-digit wing sections define the profile by: # First digit describing maximum Camber (aerodynamics), camber as percentage of the Chord (aircraft), chord. # Second digit describing the distance of maximum camber from the airfoil leading edge in tenths of the chord. # Last two digits describing maximum thickness of the airfoil as percent of the chord. For example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0.4 chords) from the leading edge with a maximum thickness of 12% of the chord. The NACA 0015 airfoil is symmetrical, the 00 indicating that it has no camber. The 15 indicates that the airfoil has a 15% thick ...
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