XK426 was the second of two Rolls Royce "Flying Bedsteads", (Thrust Measuring Rigs) - the first British jet plane to achieve a vertical take-off. It was involved in a fatal crash during trials on 28 November 1957.
The aircraft was carrying out an initial tethered flight in a gantry at Hucknall, Nottinghamshire. At 30 feet it paused, wobbled, and fell back rapidly and struck the ground heavily on its rear legs. It then bounced back up to 30 feet, fell back to the ground and toppled against the gantry structure killing the pilot. The pilot - New York-born Wing Commander Henry G.F. Larsen - was pinned underneath and crushed. He had been piloting the aircraft for the first time.
As a result of this accident, the other "Flying Bedstead" (Thrust Measuring Rig) was grounded. XK426 was the second of the two (the first was issued the serial XJ314). XK426 has a short flying life; it had only flown for the first time on 12 November 1957, and was wrecked in the above crash 16 days later.
The wreckage of XK426 was scrapped, XJ314 (TMR/"Flying Bedstead" No.1) was gifted to the Science Museum in London, where it remained on display
R. T. SHEPHERD O.B.E., ROLLS-ROYCE LTD.
CAPTAIN RONALD THOMAS SHEPHERD, O.B.E., Chief Test Pilot for Rolls-Royce Ltd., was the doyen of all test pilots in 1950, a real vintage type. He served in the R.F.C. in the 1914-18 war but that is no real clue to his age. He wangled himself in as a boy entrant by representing himself as much older than he really was—and boy entrants could enrol at 16. Whatever his score in years he is a young man in all other respects. Indeed, anyone who can fly aircraft such as the Avon-powered Meteor must indeed be young!
When quite a kid, "Shep" was determined to get into the R.F.C. before the war ended, and he was able to persuade the authorities to conform to his wishes just as he is now able to make any aeroplane do whatever he wishes.
He was born in Kensington at the end of the last century, not many years before the Wrights' first flight. When he was a boy his family moved to Balham in South London. He could not remember quite how or when he was seized with the fascination of flying. Possibly he had the determination to fly in his system when he made his first landing on this planet.
"When I was a kid I used to go to Hendon whenever I could before 1914," he told me. Hendon aerodrome was right in the country in those far off days; the many aerodrome advertisements told people, "Go by tube to Golders Green, and thence by motor bus". That sounded simple, but it was in fact quite a pilgrimage, and Shep recalled how one was taken by a No. 13 bus from Golders Green station where the tube ended, to the little country village of Hendon. Here, the aviation pilgrims wended their way down a country lane, now lost in a welter of houses and arterial roads, under a bridge carrying the Midland Railway, and then past the corrugated iron fence surrounding the aerodrome, to the main gates. This took half an hour from the bus stop.
We recalled Horatio Barber flying his Valkyries and Viking; the Caudrons, BlĂ©riots, Farmans; and the highlight which was Claude Grahame-White in his Nieuport speed monoplane which thrilled us with its great speed of a mile a minute—60 m.p.h.! Shep, who flies regularly at over 600 m.p.h. in 1950 has added a nought to Grahame-White’s "terrific speed"!
When he was old enough, Shep was apprenticed to the gun department of Vickers Ltd. and worked at Vickers House in Westminster. When he learned that the firm had an aviation department, he gravitated towards that. In 1916 he joined the Hon. Artillery Company as a very youthful volunteer, and at the tail end of 1917 he wangled himself into the R.F.C. He had his first flight in a Maurice Farman "Longhorn", that good old "mechanical cow" on which so many "early types" learned to fly. He did his flying training on an Avro 504K, was posted to No. 102 Squadron at Marham, Norfolk, equipped with FE2bs, and went to France with them under Major Wylie, son of the famous artist.
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Shepherd's flying career spanned these primitive FE2b biplanes to the jet age and the Flying Bedstead. Although outclassed as a day fighter, the F.E.2 proved very suitable for use at night and was used as a night fighter in home defence squadrons on anti-Zeppelin patrols and as a light tactical night bomber. |
Near the end of the war, he was posted back to Home Establishment to No. 37 Squadron which was engaged in night operations against Zeppelin airships. The word "Zeppelin" probably means nothing whatever to most readers to-day, but how very real to Shep and his contemporaries were these ghostly gas-bags gleaming in the searchlights. Though the bombs which they dropped on London were few and small by comparison with those of the later war, the people of the City developed a hatred for the occasional visits of these ships.
When the war ended in 1918, Shep left the Service, but returned to it after 18 months; and in 1921 he was granted a short-service commission in the R.A.F. He went to Aboukir in Egypt to join No. 56 Squadron, which had been made famous in the war by the deeds of Albert Ball, Jimmy McCudden, Billy Bishop, Arthur Rhys-Davids, and others. The squadron then had Sopwith Snipes, but in 1950 had Gloster Meteors powered by Rolls-Royce jets which were flight-developed by Shep and his team.
After taking part in a special flying mission to Turkey, he came home to Biggin Hill with No. 25 Squadron and flew in the R.A.F. Display in 1926. That year he had his closest squeak. He was in a formation of Gloster Grebes, flying over Salisbury Plain when the leader saw a Bristol Fighter make a forced landing, and went down to see if the pilot was all right. Shep, following the leader, struck some rising ground with his undercart, at flying speed, and turned the Grebe over three times. He escaped with cuts, bruises, and a shaking.
On leaving the Service, he qualified for his "B" Licence, and is one of the few early test pilots to have kept it current ever since. He was placed on the Reserve and was made Chief Flying Instructor to Phillips and Powis Ltd. (from which Miles Aircraft Ltd. later developed). After six months he left to join National Flying Services Ltd., a concern of much promise, but of short life, formed in 1929 at Hanworth to run flying clubs all over the United Kingdom. He was sent to Tollerton to control the Nottingham Flying Club branch of N.F.S.
In October, 1931, he took a step which was to mark a most important milestone in his career, for he made his first flight, as a freelance pilot, for Rolls-Royce, testing a Fairey IIIf with a Kestrel motor. He continued test-flying on a part time basis for R.R. until 1934 when the firm started its own Test Flying Establishment at Hucknall, some way from the factory at Derby. Shep was appointed Chief Test Pilot, a post he has held ever since. He made all the prototype tests with the R.R. Buzzard, Merlin, Goshawk, Vulture, Griffon, and others. He has done much development flying with jet aeroplanes. Many people will remember his superb demonstration with the Nene-Lancastrian, the first partially jet-propelled airliner many of us had seen, at the Radlett Air Show in 1946. At the Air Show at Farnborough in 1949, many more will remember his polished flying of the Meteor, with Derwent gas turbines fitted with "after-burning", which was being seen in public for the first time. He climbed straight up into a cloud through which he bored a clean hole so that spectators could see blue sky and the points of light from the after-burning from his twin jet pipes.
Shep does not resemble in the least the test pilot of the films nor of popular conception. He is of small build, tough, cheerful, with a lively sense of humour. He looks what he is—a man with an important job of work to do, who likes doing it, and who does it superbly well.
He has logged over 8,000 hours on 77 different types. He has under him a most competent team of test pilots, who between them had logged nearly 30,000 hours by 1950. They are: John H. Heyworth, 6 ft. 4 in. tall, with 8,000 hours on 80 types; his younger brother Alex J. Heyworth, 4,200 hours on 35 types; Wing Commander McDowell, D.S.O., A.F.C., D.S.M., with 5,700 hours, who commanded the first Allied jet squadron to go into action in the war, and H. C. Rogers, 3,000 hours a bomber pilot and Shep's latest acquisition. These and other members of the flight and ground crew all refer to Shep as "Chief"—a term not easily earned. It indicates something of the respect and affection which they have for his judgment, advice, experience, and character.
After a very good lunch, with much interesting talk in the Mess at Hucknall, Shep turned to me and said, "I'm going to take you for a ride in a Tudor. Is that O.K.?" Being taken for a ride can have a sinister meaning, but a Tudor, or anything else, flown by Shep was O.K. by me! We took off from Hucknall in a Tudor 2, in which R.R. were conducting experiments in sound reduction of Merlins. We flew round nearby Nottingham, and then, in bright sunshine at 170 knots at 6,500 ft. to the Wash. We flew back over Cranwell, still a grass airfield, and landed at Hucknall with scarcely a jar.
Peter Williams
Jul 25
As mentioned above, Shepherd served with 37 (Home Defence) Squadrons during WW1. Their base at Stow Maries Aerodrome, near Chelmsford still survives with many of its WW1 buildings and is the most complete and original WW1 aerodrome in Europe. It is run by a charitable trust as a Museum and is open every week. Well worth a visit!