Tag Archives: Bomber

21 October 1947

Northrop YB-49 42-102367 takes off from Northrop Field, Hawthorne, California. (U.S. Air Force)

21 October 1947: At Northrop Field, Hawthorne, California, Northrop Corporation Chief Test Pilot Max R. Stanley took off in the first YB-49, 42-102367, and flew it to Muroc Air Force Base for flight testing. The co-pilot was Fred C. Bretcher and Orva H. Douglas served as flight test engineer. The Flying Wing landed at Muroc 34 minutes later.

(Pasadena Star-News, 26 October 1947, Page 40, Columns 2–4)

An estimated 4,000 spectators lined the streets surrounding Northrop Field. The YB-49 was escorted by a Lockheed P-80A Shooting Star and a Northrop P-61 Black Widow as it climbed to 10,000 feet (3,048 meters) en route to Muroc. Over Lancaster, California, the P-61 caught fire and was abandoned by its crew.

42-102367 had been converted from the second YB-35 pre-production test aircraft. The original Flying Wing’s four Pratt & Whitney Wasp Major (R-4360-21) radial engines were replaced by turbojet engines and several aerodynamic improvements were made.

Chief Test Pilot Max R. Stanley. (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight Test Engineers)

The YB-49 was a very unusual configuration for an aircraft of that time. There was no fuselage or tail control surfaces. The crew compartment, engines, fuel, landing gear and armament were contained within the wing. Air intakes for the turbojet engines were placed in the leading edge and the exhaust nozzles were at the trailing edge. Four small vertical fins for improved yaw stability were also at the trailing edge.

Northrop YB-49 42-102367. (U.S. Air Force)
Northrop YB-49 42-102367 at Northrop Field, Hawthorne, California. (Unattributed)

The YB-49 had a length of 53 feet, 1 inch (16.180 meters), wingspan of 172 feet (52.426 meters) and overall height of 15 feet, 2 inches (4.623 meters). It weighed 88,442 pounds (40,117 kilograms) empty and its Maximum Takeoff Weight (MTOW) was 193,938 pounds (87,969 kilograms).

The Wing defined the airplane. The leading edge was swept aft 26° 57′ 48″, and the trailing edge, 10° 15′ 22″. The wing’s total area was 4,000 square feet (371.6 square meters). It had an aspect ratio of 7.4:1. At the root, the chord was 37 feet, 6 inches (11.430 meters), tapering to 9 feet, 4 inches (2.844 meters) at the tip. There was 0° angle of incidence at the root, -4° at the wing tips, and 0° 53′ dihedral.

Northrop YB-49 42-102367 in flight near Muroc Air Force Base. (U.S. Air Force)

The YB-49 was powered by eight General Electric-designed, Allison Engine Company-built J35-A-5 engines. (This same engine variant was used in the North American Aviation XP-86, replacing its original Chevrolet-built J35-C-3.) The engines were later upgraded to J35-A-15s. The J35 was a single-spool, axial-flow turbojet engine with an 11-stage compressor and single-stage turbine. The J35-A-15 had a Normal Power rating of 3,270 pounds of thrust (14.546 kilonewtons) at 7,400 r.p.m. The Military Power rating was 3,750 pounds (16.681 kilonewtons) at 7,700 r.p.m. The engine was 14 feet, 0.0 inches (4.267 meters) long, 3 feet, 4.0 inches (1.016 meters) in diameter and weighed 2,400 pounds (1,089 kilograms).

The YB-49 had four vertical fins extending above and below the trailing edge of the Wing. (U.S. Air Force 090706-F-1234K-048)

During testing the YB-49 reached a maximum speed of 428 knots (493 miles per hour/793 kilometers per hour) at 20,800 feet (6,340 meters). Cruise speed was 365 knots (429 miles per hour/690 kilometers per hour). The airplane had a service ceiling of 49,700 feet (15,149 meters). The YB-49 had a maximum fuel capacity of 14,542 gallons (55,047 liters) of JP-1 jet fuel. Its combat radius was 1,403 nautical miles (1,615 statute miles/2,598 kilometers).

The maximum bomb load of the YB-49 was 16,000 pounds (7,257 kilograms), though the actual number of bombs was limited by the volume of the bomb bay and the capacity of each bomb type. While the YB-35 Flying Wing was planned for multiple machine gun turrets, the YB-49 carried no defensive armament.

Northrop YB-49 42-102367 takes off from Northrop Field, Hawthorne California. Note teh crowds of onlookers and residential housing along W. 120th Street, on the north side of the airport. (U.S. Air Force)
Northrop YB-49 42-102367 takes off from Northrop Field, Hawthorne, California. Note the crowds of onlookers and residential housing along W. 120th Street, on the north side of the airport. (Unattributed)

Only two Northrop YB-49s were built and they were tested by Northrop and the Air Force for nearly two years. Though an additional nine YB-35s were ordered converted, the B-49 was not placed into production.

A Northrop YB-49 with a Boeing XB-47 Stratojet. (U.S. Air Force)

The second ship, YB-49 42-102368, disintegrated in flight during a test flight north of Muroc Air Force Base, 5 June 1948, killing the entire crew, which included Captain Glen Edwards. The name of Muroc was changed to Edwards Air Force Base in his honor.

YB-49 42-102367 was destroyed by fire following a taxiing accident at Edwards, 15 March 1950. The program was cancelled on the same day.

© 2024, Bryan R. Swopes

18 October 1984

Rockwell International B-1B Lancer 82-0001 takes off for the first time at Air Force Plant 42, Palmdale, California. (U.S. Air Force)

18 October 1984: The first production Rockwell International B-1B Lancer, serial number 82-0001, a supersonic four-engine strategic bomber with variable sweep wings, made its first flight from Air Force Plant 42, Palmdale, California.

Rockwell test pilot Mervyn Leroy Evenson (Colonel, U.S.Air Force, retired) was the aircraft commander, with co-pilot Lieutenant Colonel Leroy Benjamin Schroeder; Major S.A. Henry, Offensive Systems Officer; Captain D.E. Hamilton, Defensive Systems Officer.

Rockwell International B-1B takeoff on Oct. 25, 1986. Note the lit afterburners. (U.S. Air Force)

After 3 hours, 20 minutes, the B-1B landed at Edwards Air Force Base where it would enter a flight test program.

Rockwell B-1B 82-0001 parked at the Rockwell International facility, AF Plant 42, Palmdale, California, 3 September 1984. (Rockwell)
Rockwell B-1B 82-0001 parked at the Rockwell International Corp. facility, Palmdale, California, 3 September 1984. (MSGT Mike Dial, U.S. Air Force)

The Rockwell International B-1B Lancer is a supersonic intercontinental bomber capable of performing strategic or tactical missions. It is operated by a flight crew of four.

The B-1B is 147 feet, 2.61 inches (44.8719 meters) long, with the wing span varying from 86 feet, 8.00 inches (26.4160 meters) at 67.5° sweep to 136 feet, 8.17 inches (41.6603 meters) at when fully extended to 15° sweep. It is 33 feet, 7.26 inches (10.2428 meters) high to the top of the vertical fin. The bomber’s empty weight is approximately 180,500 pounds (81,873 kilograms). Its maximum weight in flight is 477,000 pounds (216,634 kilograms). The internal payload is up to 75,000 pounds (34,019 kilograms).

The bomber is powered by four General Electric F101-GE-102 turbofan engines, mounted in two-engine nacelles under the wing roots. These are rated at 17,390 pounds of thrust (17.355 kilonewtons) and produce 30,780 pounds (136.916 kilonewtons) with “augmentation.” The engine has two fan stages, a 9-stage axial-flow compressor and a 3-stage turbine. The F101-GE-102 is 15 feet, 0.7 inches (4.590 meters) long, 4 feet, 7.2 inches (1.402 meters) in diameter and weighs 4,460 pounds (2,023 kilograms).

Rockwell International B-1B Lancer. (U.S. Air Force)

“The Bone” has a maximum speed of Mach 1.2 at Sea Level (913 miles per hour, or 1,470 kilometers per hour). The service ceiling is “over 30,000 feet” (9,144 meters). The Lancer’s maximum range is “intercontinental, unrefueled.”

It can carry up to 84 Mk.82 500-pound (226.8 kilogram) bombs, 24 Mk.84 2,000-pound (907.2 kilogram) bombs or other weapons in three weapons bays. The B-1B was built with the capability to carry 24 B61 thermonuclear bombs, though, since 2007, the fleet no longer has this capability.

A Rockwell B-1B Lancer drops Mk. 82 bombs from its three weapons bays. (U.S. Air Force)

100 B-1B Lancers were built between 1983 and 1988. As of September 2021, 45 B-1B bombers remained the active Air Force inventory. The Air Force plans upgrades to the aircraft and to keep it in service until 2033.

To comply with the START weapons treaty, B-1B 82-0001 was scrapped at Ellsworth Air Force Base, South Dakota, in the mid-1990s.

A Rockwell International B-1B in flight. (U.S. Air Force)
A Rockwell International B-1B Lancer in flight. (U.S. Air Force)

© 2018, Bryan R. Swopes

2 October 1952

Boeing XB-52 Stratofortress 49-230 takes off for the first time, at Boeing Field, Seattle, Washington, 2 October 1952. (LIFE Magazine via Jet Pilot Overseas)

2 October 1952: The Boeing XB-52 Stratofortress prototype, 49-230, made its first flight at Boeing Field, Seattle, Washington, with test pilot Alvin M. “Tex” Johnston in command.  Lieutenant Colonel Guy M. Townsend, U.S. Air Force, acted as co-pilot.

The first of two prototype long-range, high-altitude, heavy bombers, the XB-52 had been damaged during ground testing and extensive repairs were required, which delayed its initial flight. The second prototype, YB-52 49-231, made the type’s first flight nearly six months earlier, on 15 April 1952.

Alvin M. “Tex” Johnston, test pilot, after the first flight of the Boeing XB-52 Stratofortress prototype, 2 October 1952. (LIFE Magazine via Jet Pilot Overseas)

The prototype Stratofortress the largest jet aircraft built up to that time. It was 152.7 feet (46.543 meters) long with a wingspan of 185.0 feet, (56.388 meters) and 48.25 feet (14.707 meters) to the top of the vertical fin. The leading edges of the wings were swept back 36° 54′.  The XB-52 had an empty weight of 155,200 pounds (70,398 kilograms) and its maximum takeoff weight was 390,000 pounds (176,901 kilograms). Fuel capacity was 27,417 gallons (103,785 liters).

Lieutenant Colonel Guy M. Townsend, U.S. Air Force. (Jet Pilot Overseas)
Lieutenant Colonel Guy M. Townsend, U.S. Air Force. (Jet Pilot Overseas)

The XB-52 was powered by eight Pratt & Whitney YJ57-P-3 turbojet engines, with a normal power rating of 8,700 pounds static thrust at Sea Level (38.700 kilonewtons). The prototype bomber had  a cruising speed of 519 miles per hour (835 kilometers per hour), and a maximum speed of 611 miles per hour (983 kilometers per hour) at 20,000 feet (6,048 meters). The planned bombing altitude was 46,500 feet (14,173 meters) and it had a service ceiling of 52,300 feet (15,941 meters). The XB-52 had an initial rate of climb of 4,550 feet per minute (23.11 meters per second) at Sea Level. Its maximum unrefueled range was 7,015 miles (11,290 kilometers).

Pilot’s cockpit, Boeing XB-52. (Boeing)
Boeing XB-52 Stratofortress 49-230. (U.S. Air Force)
Boeing XB-52 Stratofortress 49-230. (U.S. Air Force)
Boeing XB-51 Stratofortress 49-230 with a North American F-86 Sabre chase plane. (U.S. Air Force)
Boeing XB-52 Stratofortress 49-230 with a North American F-86 Sabre chase plane. (U.S. Air Force)
Boeing XB-52 Stratofortress 49-230. (U.S. Air Force)
Boeing XB-52 Stratofortress 49-230. (U.S. Air Force)

In its original configuration, the XB-52 was armed with two .50-caliber machine guns in a turret in the tail, with 600 rounds of ammunition per gun, though these guns were not installed on 49-230. The XB-52 was designed to carry a single 25,200 pound (11,431 kilogram) T-28E2 Samson bomb, or other conventional or nuclear weapons.

XB-52 49-230 was used in flight testing for its entire service life. The airplane was scrapped in the mid-1960s.

744 B-52 bombers were built by Boeing at Seattle, Washington and Wichita, Kansas, with the final one, B-52H-175-BW 61-0040, rolled out 22 June 1962.

75 B-52H Stratofortresses are still in service with the United States Air Force.

Boeing XB-52, with Tex Johnston and Guy Townsend in the tandem cockpit. (Boeing)
Boeing XB-52 Stratofortress 49-230 (U.S. Air Force)
Boeing XB-52 Stratofortress 49-230 with two Pratt & Whitney J75 turbojets in single-engine nacelles on the outer pylons, circa 1959. (U.S. Air Force)

© 2017 Bryan R. Swopes

14 September 1962

Major Fitzhugh L. Fulton, Jr., U.S. Air Force, in the cockpit of a Convair B-58A Hustler Mach 2+ strategic bomber. (U.S. Air Force)

14 September 1962: At Edwards Air Force Base, in the high desert of southern California, Major Fitzhugh L. Fulton, Jr., United States Air Force, with Captain William R. Payne, USAF, and civilian flight test engineer C.R. Haines, flew a Convair B-58A-10-CF Hustler, serial number 59-2456, to a record 26,017.93 meters (85,360.66 feet) while carrying a 5,000 kilogram payload. This set a Fédération Aéronautique Internationale (FAI) World Record for Altitude in both the 2,000 kilogram (4,409.25 pounds) ¹ and 5,000 kilogram (11,023.11 pounds) ² classes.

Left to right, Major Fitzhugh L. Fulton, Jr., USAF, Captain William R. Payne, USAF, and civilian flight test engineer C.R. Haines. (FAI)
Left to right, Major Fitzhugh L. Fulton, Jr., USAF, Captain William R. Payne, USAF, and civilian flight test engineer C.R. Haines. (FAI)
Fitzhugh L. Fulton, Jr., 1942.

Fitzhugh Lee Fulton, Jr., was born 6 June 1925 at Blakeley, Georgia. He was the son of Fitzhugh Lee Fulton and Manila T. Fulton. He graduated from Columbus High School, Columbus, Georgia, in 1942. He later studied at Auburn University, Auburn, Alabama, and the University of Oklahoma, Norman, Oklahoma (just south of Oklahoma City). he graduated from Golden Gate University, San Francisco, California.

Fitz Fulton married Miss Erma I. Beck at Tucson, Arizona, 16 December 1945.

He entered the U.S. Army Air Corps in 1943. He flew the Douglas C-54 Skymaster transport during the Berlin Airlift and Douglas B-26 Invaders during the Korean War. Fulton graduated from the Air Force Experimental Test Pilot School in 1952. He served as project test pilot for the Convair B-58 Hustler supersonic bomber. At Edwards AFB, he flew the B-52 “motherships” for the X-15 Program. He flew the North American XB-70A Valkyrie to more than Mach 3. When Fulton retired from the Air Force in 1966, he was a lieutenant colonel assigned as Chief of Bomber and Transport Test Operations.

Fitz Fulton continued as a test pilot for NASA, flying as project pilot for the YF-12A and YF-12C research program. He flew all the early test flights of the NASA/Boeing 747 Shuttle Carrier Aircraft and carried the space shuttle prototype, Enterprise. By the time he had retired from NASA, Fulton had flown more than 16,000 hours in 235 aircraft types.

Fitzhugh Lee Fulton, Jr., died at Thousand Oaks, California, 4 February 2015, at the age of 89 years.

Convair B-58A-10-CF Hustler 59-2456 with a full weapons load. Major Fitzhugh L. Fulton, U.S. Air Force, flew this Mach 2+ strategic bomber to an altitude of 16.2 miles (26 kilometers) over Edwards Air Force Base, California, 14 September 1962. (U.S. Air Force)

The B-58 Hustler was a high-altitude Mach 2 strategic bomber which served with the United States Air Force from 1960 to 1970. It was crewed by a pilot, navigator/bombardier and a defensive systems operator located in individual cockpits. The aircraft is a delta-winged configuration similar to the Convair F-102A Delta Dagger and F-106 Delta Dart supersonic interceptors.

The Hustler is 96 feet, 10 inches (29.515 meters) long, with a wing span of 56 feet, 10 inches (17.323 meters) and an overall height of 31 feet 5 inches (9.576 meters). The wing’s leading edge is swept back at a 60° angle and the fuselage incorporates the “area rule” which resulted in a “wasp waist” or “Coke bottle” shape for a significant reduction in aerodynamic drag. The airplane’s only control surfaces are two “elevons” and a rudder, and there are no flaps.

The B-58A was powered by four General Electric J79-GE-5 axial-flow afterburning turbojet engines, suspended under the wings from pylons. This was a single-shaft engine with a 17-stage compressor and 3-stage turbine, rated at 10,300 pounds of thrust (45.82 kilonewtons), and 15,600 pounds (69.39 kilonewtons) with afterburner. The J79-GE-5 was 16 feet, 10.2 inches (5.136 meters) long and 3 feet, 2.0 inches (0.965 meters) in diameter.

The bomber had a cruise speed of 610 miles per hour (981.7 kilometers per hour) and a maximum speed of 1,325 miles per hour (2,132.4 kilometers per hour). The service ceiling is 64,800 feet (19,751 meters). Unrefueled range is 4,400 miles (7,081 kilometers). Maximum weight is 168,000 pounds (76,203.5 kilograms).

The B-58 weapons load was a combination of a W-39 warhead, and/or Mk.43 or B61 nuclear bombs. The W-39 warhead, the same used with the Redstone IRBM or Snark cruise missile, was carried in a jettisonable centerline pod, which also carried fuel for the aircraft. The smaller bombs were carried on underwing hardpoints. For defense, there was a General Electric M61 Vulcan 20×102 mm six-barreled rotary cannon mounted in the tail, with 1,200 rounds of linked ammunition, controlled by the Defensive Systems Officer.

Convair B-58A-10-CF 59-2456 was assigned to the 43rd Bombardment Wing at Carswell Air Force Base, Texas until 1969 when it was placed in storage at Davis-Monthan Air Force Base, Tucson, Arizona, 9 December 1969. The record-setting strategic bomber was scrapped 1 June 1977.

FAI altitiude record setting Convair B-58A-10-CF 59-2456, showing the bomber's weapons capability. (U.S. Air Force)
FAI altitude record setting Convair B-58A-10-CF 59-2456, showing the bomber’s weapons capability. Major Fitzhugh L. Fulton, U.S. Air Force, flew this Mach 2+ strategic bomber to an altitude of 16.2 miles (26 kilometers) over Edwards Air Force Base, California, 14 September 1962. (U.S. Air Force)

¹ FAI Record File Number 14656

² FAI Record File Number 14652

© 2017, Bryan R. Swopes

28 August 1957

English Electric Canberra B Mk.2 WK163 climbing under rocket power. (Institution of Mechanical Engineers)
English Electric Canberra B Mk.2 WK163 climbing under rocket power. (Institution of Mechanical Engineers)

28 August 1957: Michael Randrup, Chief Test Pilot of D. Napier and Son, Ltd., and Walter Shirley, Deputy Chief Engineer, fly this Royal Air Force/English Electric Canberra B Mk.2, WK163, to an altitude of 21,430 meters (70,308 feet) over southern England.  This set a new Fédération Aéronautique Internationale (FAI) World Record for altitude.¹

WK163 with rocket engine installed in its bomb bay. (Institution of Mechanical Engineers)
WK163 with rocket engine installed in its bomb bay. (Institution of Mechanical Engineers)

The Canberra was being used to test Napier’s Double Scorpion NSc D1-2 rocket engine, which was used to drive the airplane far beyond its normal service ceiling of 48,000 feet (14,630 meters).

After taking off from Luton, Bedfordshire, at 5:26 p.m., Mike Randrup used the Canberra’s two 6,500-pounds-thrust (28.91 kilonewtons) Rolls-Royce Avon RA.3 Mk. 101 turbojet engines to climb to 44,000 feet (13,411 meters), where he throttled the engines back to cruising r.p.m. and then ignited the Double Scorpion. The Canberra climbed at a very steep angle until reaching the peak altitude.

English Electric Canberra B Mk.2 WK163. (Institution of Mechanical Engineers)
English Electric Canberra B Mk.2 WK163. (Institution of Mechanical Engineers)

At this high altitude, there is an extremely narrow margin between the airplane’s stall speed and it’s critical Mach number—the point at which supersonic shock waves start to form on the wings and fuselage. On an Airspeed Limitations Chart, this area is known as “Coffin Corner.” Aerodynamicists had calculated that Randrup needed to keep the Canberra within a 15-knot range of airspeed.

Though the Canberra’s cockpit was pressurized, both Mike Randrup and Walter Shirley wore pressure suits in case of emergency.

WK163 landed back at Luton at 6:12 p.m.

Flight of Canberra WK163, 27 August 1957. (Flight)

In 1958, the Royal Aero Club of Great Britain awarded the Britannia Trophy to Randrup and Shirley.

The English Electric Canberra B.2 was the first production variant of a twin-engine, turbojet powered light bomber. The bomber was operated by a pilot, navigator and bombardier. It was designed to operate at very high altitudes. The Canberra B.2 was 65 feet, 6 inches (19.964 meters) long with a wingspan of 64 feet, 0 inches (19.507 meters) and height of 15 feet, 7 inches (4.750 meters). The wing used a symmetrical airfoil and had 2° angle of incidence. The inner wing had 2° dihedral, and the outer wing, 4° 21′. The total wing area was 960 square feet (89.2 square meters). The variable-incidence tail plane ad 10° dihedral. The airplane’s maximum takeoff weight was 46,000 pounds ( kilograms).

The Canberra B.2 was powered by two Rolls-Royce Avon RA.3 Mk. 101 engines. The RA.3 was a single-spool axial-flow turbojet with a 12-stage compressor section and single-stage turbine. It was rated at 6,500-pounds-thrust (28.91 kilonewtons).

The B.2 had a maximum speed of 450 knots (518 miles per hour/833 kilometers per hour). It was restricted to a maximum 0.75 Mach from Sea Level to 15,000 feet (4,572 meters), and 0.79 Mach from 15,000 to 25,000 feet (7.620 meters). Above that altitude the speed was not restricted, but pilots were warned that they could expect compressibility effects at 0.82 Mach or higher.

The Canberra was produced in bomber, intruder, photo reconnaissance, electronic countermeasures and trainer variants by English Electric, Handley Page, A.V. Roe, and Short Brothers and Harland. In the United States, a licensed version, the B-57A Canberra, was built by the Glenn L. Martin Company. The various versions were operated by nearly 20 nations. The Canberra was the United Kingdom’s only jet-powered bomber for four years. The last one in RAF service, a Canberra PR.9, made its final flight on 28 July 2006.

WK163 was built under license by A.V. Roe at Woodford, Cheshire, in 1954, and accepted by the Royal Air Force 28 January 1955. Having spent its entire career as a research test bed, WK163 was declared surplus in 1994 and sold at auction to Classic Air Projects Ltd. It was assigned civil registration G-BVWC.

English Electric Canberra B Mk.2 WK163, 1997. (Mike Freer/Wikipedia)

G-BVWC last flew in 2007. As of December 2016, the record-setting Canberra was undergoing a full restoration at Robin Hood Airport, near Doncaster, South Yorkshire.

English Electric Canberra B2 WK163 (G-BVWC). (Tony Hisgett, via Wikipedia)
English Electric Canberra B Mk.2 WK163, civil registration G-BVWC. The record-setting airplane has been painted in the standard Bomber Command scheme with markings of No. 617 Squadron. (Tony Hisgett, via Wikipedia)

Michael Randrup was born in Moscow, Imperial Russia, 20 April 1913. He was one of four children of Søren Revsgaard Randrup and Alexandra Pyatkova Randrup. He held Danish citizenship through his father, who had emigrated to Russia in 1899. Following the Russian revolution, the Randrup family relocated to England.

Michael was educated at The King’s School in Canterbury, Kent. He became interested in aviation in his early teens, and took his first flight as a passenger aboard an Avro 504K biplane. He began flight lessons at Bekesbourne Aerodrome in 1935, and soloed in June 1936. Randrup applied to join the Royal Air Force but was turned down because of his Danish citizenship. He then went to the Automobile Engineering College in Chelsea, West London, to study aeronautical engineering.

Randrup graduated in 1939, and along with a cousin, Ivan Christian Randrup, formed a small air charter company, AllFlights Ltd., at Heston Aerodrome, west of London. They operated a de Havilland DH.85 Leopard Moth, de Havilland DH.90 Dragonfly, and a Heston Type I Phoenix II (G-AEYX). The Phoenix was impressed into service by the R.A.F., 5 March 1940.

World War II bought their fledgling company to a close. (Ivan Randrup briefly flew for B.O.A.C. before going on to the Air Transport Auxiliary. First Officer Randrup died 29 January 1941.)

After Denmark fell to Nazi Germany in April 1940, Michael Randrup was accepted by the R.A.F. He received a commission as a Pilot Officer on probation, Royal Air Force Volunteer Reserve, 4 September 1940. One year later he was promoted to Flying Officer.

On completion of his military flight training, Pilot Officer Randrup was sent to a flying instructors school. For the next two years, he served as a military flight instructor in England and Southern Rhodesia. In 1942, Flying Officer Randrup was transferred from Training Command to Fighter Command and on 6 October, was assigned to No. 234 Squadron, then stationed at RAF Perranporth, flying the Supermarine Spitfire Vc. A number of Danish pilots had been assigned to No. 234. On 1 January 1943, Randrup was seconded to Air Service Training, Ltd., at Hamble, just southeast of Southampton, where he flight-tested new-production, repaired and overhauled Spitfire fighters.

In 1944, Randrup was assigned as a test pilot at the Royal Aircraft Establishment at Farnborough. Among other assignments, he flight-tested a captured Heinkel He 177 A-5/R-6 twin-engine heavy bomber. In 1945, Randrup was appointed Officer Commanding, Engine Research and Development Flight. By the end of the war, he had been promoted to the rank of Squadron Leader.

Following the war, Randrup went to work for D. Napier and Son Ltd. In 1946, he became the company’s Chief Test Pilot. The following year, he became a naturalized subject of the United Kingdom and the British Empire.

From 1966 until 1973, Randrup served as manager for the British Aircraft Corporation in Saudi Arabia. BAC provided aircraft and missiles to the Royal Saudi Air Force.

Michael Randrup was twice married, first to Florence May Dryden, and then to Betty Perry. They would have two children.

Michael Randrup died in February 1984 at the age of 70 years.

Walter Shirley, Napier Chief Development Engineer (left), and Michael Randrup, Chief Test Pilot, D. Napier and Son Ltd. (Photograph courtesy of Neil Corbett, Test & Research Pilots, Flight Test Engineers)

Walter Shirley was educated at the Blackpool Grammar School, a private boarding school in Blackpool, Lancashire, and St. Catherine’s College, University of Cambridge.

Shirley was employed as a scientific officer at RAE Farnborough from 1942 to 1946. It was while there that he first flew as a flight test engineer with Squadron Leader Randrup. Shirley was sent to an R.A.F. flight school for pilot training. In 1946, he was assigned to rocket engine development.

Shirley joined Napier in 1947, working on turbine engines. In 1952, he was appointed Chief Technician. In 1956, Shirley was made the Chief Development Engineer for the Scorpion engine. He later became the company’s Deputy Chief Engineer.

Walter Shirley died in 1993.

The Britannia Trophy of the Royal Aero Club of Great Britain.

¹ FAI Record File Number 9843

© 2018, Bryan R. Swopes