David Pettit Davies (11 April 1920 – 30 November 2003) was a British

test pilot A test pilot is an aircraft pilot with additional training to fly and evaluate experimental, newly produced and modified aircraft with specific maneuvers, known as flight test techniques.Stinton, Darrol. ''Flying Qualities and Flight Testin ...

who was chief test pilot for the United Kingdom

Civil Aviation Authority A civil aviation authority (CAA) is a national or supranational statutory authority that oversees the regulation of civil aviation, including the maintenance of an aircraft register. Role Due to the inherent dangers in the use of flight vehicles ...

for 33 years. He was known as "the test pilots' test pilot".

Career

Davies was born in

Neath Neath (; cy, Castell-nedd) is a market town and community situated in the Neath Port Talbot County Borough, Wales. The town had a population of 50,658 in 2011. The community of the parish of Neath had a population of 19,258 in 2011. Historica ...

, South Wales. He joined the

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by Kingdom of England, English and Kingdom of Scotland, Scottish kings from the early medieval period, the first major maritime engagements were foug ...

in 1940, and first served as a torpedo man. He survived the sinking of HMS Patia in April 1941. He joined the

Fleet Air Arm The Fleet Air Arm (FAA) is one of the five fighting arms of the Royal Navy and is responsible for the delivery of naval air power both from land and at sea. The Fleet Air Arm operates the F-35 Lightning II for maritime strike, the AW159 Wil ...

, flying his first solo on a

Tiger Moth The de Havilland DH.82 Tiger Moth is a 1930s British biplane designed by Geoffrey de Havilland and built by the de Havilland Aircraft Company. It was operated by the Royal Air Force (RAF) and other operators as a primary trainer aircraft. ...

in 1941, and served in 818 Naval Air Squadron on the carrier HMS Unicorn off Norway, Biscay and in the Salerno landings, flying the

Fairey Swordfish The Fairey Swordfish is a biplane torpedo bomber, designed by the Fairey Aviation Company. Originating in the early 1930s, the Swordfish, nicknamed "Stringbag", was principally operated by the Fleet Air Arm of the Royal Navy. It was also use ...

. He was posted to 854 Naval Air Squadron in support of the

D-Day landings The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as ...

. He saw service in the Far East on aircraft carrier HMS Illustrious, flying the

Grumman TBF Avenger The Grumman TBF Avenger (designated TBM for aircraft manufactured by General Motors) is an American World War II-era torpedo bomber developed initially for the United States Navy and Marine Corps, and eventually used by several air and naval ...

off Sumatra and Japan. He was awarded the DSC in 1945. After the war he attended the Naval Maintenance Test Pilots' Course and the

Empire Test Pilots' School The Empire Test Pilots' School (ETPS) is a British training school for test pilots and flight test engineers of fixed-wing and rotary-wing aircraft at MoD Boscombe Down in Wiltshire, England. It was established in 1943, the first of its typ ...

in 1946, then was a military test pilot for three years in the Handling Squadron of the Empire Central Flying School at

RAF Hullavington RAF Hullavington was a Royal Air Force station located at Hullavington, near Chippenham, Wiltshire, England. The station opened in June 1937 and was predominantly used for various training purposes. It closed on 31 March 1992 when it was transf ...

. In August 1949 he joined the Air Registration Board as chief test pilot. He drafted new rules about aircraft stability. Aircraft he tested included the

de Havilland Comet The de Havilland DH.106 Comet was the world's first commercial jet airliner. Developed and manufactured by de Havilland in the United Kingdom, the Comet 1 prototype first flew in 1949. It featured an aerodynamically clean design with four ...

Bristol Britannia The Bristol Type 175 Britannia is a retired British medium-to-long-range airliner built by the Bristol Aeroplane Company in 1952 to fly across the Commonwealth. During development two prototypes were lost and the turboprop engines proved su ...

Vickers VC10 The Vickers VC10 is a mid-sized, narrow-body long-range British jet airliner designed and built by Vickers-Armstrongs (Aircraft) Ltd and first flown at Brooklands, Surrey, in 1962. The airliner was designed to operate on long-distance rou ...

Hawker Siddeley Trident The Hawker Siddeley HS-121 Trident (originally the de Havilland DH.121 and briefly the Airco DH.121) is a British airliner produced by Hawker Siddeley. In 1957, de Havilland proposed its DH.121 trijet design to a British European Airways (BE ...

BAC One-Eleven The BAC One-Eleven (or BAC-111/BAC 1-11) was an early jet airliner produced by the British Aircraft Corporation (BAC). Originally conceived by Hunting Aircraft as a 30-seat jet, before its merger into BAC in 1960, it was launched as an 80-se ...

Boeing 747 The Boeing 747 is a large, long-range wide-body airliner designed and manufactured by Boeing Commercial Airplanes in the United States between 1968 and 2022. After introducing the 707 in October 1958, Pan Am wanted a jet times its size, ...

Boeing 737 The Boeing 737 is a narrow-body aircraft produced by Boeing at its Renton Factory in Washington. Developed to supplement the Boeing 727 on short and thin routes, the twinjet retains the 707 fuselage width and six abreast seating with two ...

McDonnell Douglas DC-10 The McDonnell Douglas DC-10 is an American trijet wide-body aircraft manufactured by McDonnell Douglas. The DC-10 was intended to succeed the Douglas DC-8, DC-8 for long-Range (aeronautics), range flights. It first flew on August 29, 1970; i ...

Lockheed L-1011 TriStar The Lockheed L-1011 TriStar, also known as the L-1011 (pronounced "El-ten-eleven") and TriStar, is an American medium-to-long-range, wide-body trijet airliner built by the Lockheed Corporation. It was the third wide-body airliner to enter comme ...

, and

Concorde The Aérospatiale/BAC Concorde () is a retired Franco-British supersonic airliner jointly developed and manufactured by Sud Aviation (later Aérospatiale) and the British Aircraft Corporation (BAC). Studies started in 1954, and France and t ...

. He insisted Boeing modify the

Boeing 707 The Boeing 707 is an American, long-range, narrow-body airliner, the first jetliner developed and produced by Boeing Commercial Airplanes. Developed from the Boeing 367-80 prototype first flown in 1954, the initial first flew on December ...

to increase the fin size for improved directional control. He insisted the Trident, One-Eleven and

Boeing 727 The Boeing 727 is an American narrow-body airliner that was developed and produced by Boeing Commercial Airplanes. After the heavy 707 quad-jet was introduced in 1958, Boeing addressed the demand for shorter flight lengths from smaller airp ...

be fitted with

stick pusher A stick pusher is a device installed in some fixed-wing aircraft to prevent the aircraft from entering an aerodynamic stall. Some large fixed-wing aircraft display poor post-stall handling characteristics or are vulnerable to deep stall. To preve ...

s, to avoid deep stalls. At the time, stick pushers were controversial. During his work on the Comet, he worked with

R. E. Bishop Ronald Eric Bishop CBE FRAeS (27 February 1903 – 11 June 1989), commonly referred to as R. E. Bishop, was a British engineer who was the chief designer of the de Havilland Mosquito, one of the most famous aircraft of the Second World War ...

. His book, ''Handling the Big Jets'' (1967), is a classic of aviation and is still recommended in the 21st century. Davies was appointed

Officer of the Order of the British Empire The Most Excellent Order of the British Empire is a British order of chivalry, rewarding contributions to the arts and sciences, work with charitable and welfare organisations, and public service outside the civil service. It was established o ...

(OBE) in

1957 1957 (Roman numerals, MCMLVII) was a Common year starting on Wednesday, common year starting on Tuesday of the Gregorian calendar, the 1957th year of the Common Era (CE) and ''Anno Domini'' (AD) designations, the 957th year of the 2nd millennium, t ...

.United Kingdom list: He was a Fellow of the Royal Aeronautical Society. He was given the Dorothy Spicer Award in 1966 by the Society of Licensed Aircraft Engineers. He married Jean, who died in 1996. They had two sons. He retired in 1982.

Books

References

External links

David Davies interviewed by Rodney Giesler, 1992
*
D. P. Davies Interview on his service in the Fleet Air Arm and the Handling Squadron during the 1940s
*
D. P. Davies Interview on testing the Comets, Boeing 707, Britannia & Brabazon
*
D. P. Davies Interview on the Boeing 747, the Trident, VC10, One Eleven & the Boeing 727
*
D. P. Davies Interviews on Concorde and the V-bombers

Photograph of D. P. Davies, 1963
{{DEFAULTSORT:Davies, David Pettit 1920 births 2003 deaths People from Neath Welsh test pilots Concorde pilots Recipients of the Distinguished Service Cross (United Kingdom) Officers of the Order of the British Empire