All posts by Bryan Swopes

About Bryan Swopes

Bryan R. Swopes grew up in Southern California in the 1950s–60s, near the center of America's aerospace industry. He has had a life-long interest in aviation and space flight. Bryan is a retired commercial helicopter pilot and flight instructor.

24 May 1961

Lieutenants Gordon and Young. (U.S. Navy)

24 May 1961: Lieutenant Richard Francis Gordon, Jr., United States Navy, with Radar Intercept Officer Lieutenant (j.g.) Bobbie R. Young, flew from Ontario International Airport, east of Los Angeles, California, to Floyd Bennett Field, New York, with their McDonnell F4H-1F Phantom II, Bu. No. 148270. The duration of their flight was 2 hours, 47 minutes, 0.01 seconds, for an average speed of 1,399.66 kilometers per hour (869.71 miles per hour). For their accomplishment, they won the Bendix Trophy.

The Associated Press reported:

NAVY PLANE SETS NEW U.S. SPEED MARK

Jet Crosses Country in Two Hours And 48 Minutes

     New York, May 24 (AP)—A Navy jet fighter plane flashed from coast to coast today in two hours 48 minutes, to eclipse a record that had stood since 1957.

     Said Lt. Richard F. Gordon, 31, of Seattle, who piloted the fastest plane across the nation at an average speed of 871.38 m.p.h.:

      “It was a wonderful trip. The weather was fine all along the route. I feel great, but I’m real tired.”

     As the three F4H-1 Phantoms zoomed down from 50,000 feet for a landing at Floyd Bennet Field [sic], shock waves exploded ahead of them with a thunder-like clap that startled metropolitan residents on the ground below.

Five Phantoms Start

     The transcontinental flight from Ontario at 7.59 A.M. (P.D.T.) on the 2,445.9 mile hop to New York in the twentieth renewal of the Bendix Trophy races. Tanker planes waited to refuel them over Albuquerque (N.M.), St. Louis, and between Detroit and Pittsburgh.

Douglas A3D-2 Skywarrior Bu. No. 142650, Heavy Attack Squadron NINE (VAH-9), refuels McDonnell F4H-1F Phantom II Bu. No. 148261 of VF-101 Detachment A during the 1961 Bendix Trophy Race. (NMNA # 1996.253.3678)

   One of the five planes encountered trouble over Albuquerque and dropped out of the race. A second was held up by refueling problems over Albuquerque and St. Louis and straggled into Floyd Bennet and [sic] hour and twenty minutes behind the pacesetters.

     Sharing the Bendix Trophy with Lieutenant was his radio-intercept officer, Lt. (J.G.) Bobbie R. Young, 34, of Modesto, Cal. Their average speed was the highest ever in the trophy races, that began in 1931 with James H. Doolittle setting an average mark of 223 m.p.h. between Los Angeles and Cleveland.

Time Certified

Lieutenants Gordon and Young with the Bendix Trophy. Both Naval Aviators are wearing B.F. Goodrich Mark IV full-pressure suits for protection at high altitude.

The two other craft that accompanied Lieutenant Gordon’s finished in the unofficial time of 2 hours and 57 minutes, and 3 hours and 3 minutes. Lieutenant Gordon’s time was certified as official by the Navy, subject to approval of international aviation authorities.

     Rear Admiral Frank A Brandley, assistant chief of naval operations for air, greeting the fliers here, pointed out that had Gordon flown in the opposite direction, he would have landed in California earlier than he took off from New York—because of the time differential.

     The supersonic Phantoms are carrier-based Navy fighter planes built by McDonnell Aircraft, of St. Louis.

     The Bendix races were organized to test pilot training, equipment and technical skills of American aviation. The last previous race was held in 1957, between Chicago and Washington. The 1957 record was not set in a Bendix race.

The Sun, Vol. 249, No. 8, Baltimore, Thursday, 25 May 1961, Page 9, Column 1

The following is the U.S. Navy’s official biography of Richard Gordon:

Department of the Navy
Office of Information

CAPTAIN RICHARD F. GORDON, JR., UNITED STATES NAVY

Richard Francis Gordon, Jr., was born in Seattle, Washington, on October 5, 1929, son of Richard F. and Angela Frances (Sullivan) Gordon.  He attended North Kitsap High School, Poulsbo, Washington, and the University of Washington at Seattle, from which he received the degree of Bachelor of Science in Chemistry in 1951.  He enlisted in the U. S. Naval Reserve, served as an Airman at the Naval Air Station, Sand Point, Washington.  Appointed Aviation Cadet in August 1951, he had flight training at the Naval Air Basic Training Command, Naval Air Station, Pensacola, Florida, and at the Naval Air Advanced Training Command, Naval Air Station, Corpus Christi, Texas.  Designated Naval Aviator and commissioned Ensign, U. S. Naval Reserve, on March 25, 1953, he subsequently advanced in rank to that of Captain, to date from December 11, 1969, having transferred to the Regular Navy on August 3, 1955.

After receiving his “Wings” in March 1953, he had instruction for two months at the naval School, All Weather Flight, Naval Air Station, Corpus Christi, and for one month at the Naval Auxiliary Air Station, Kingsville, Texas.  In June of that year he joined Fighter Squadron ELEVEN to serve as Navigation Officer, Communications Officer and Naval Aviator until January 1957, when he reported for instruction at the Naval Air Test Center, Patuxent River, Maryland.  In August that year, he transferred to the Flight Test Division, Naval Air Test Center, where he had duty as a Project Pilot, Project Officer, and First Lieutenant until March 1960.

He next joined Fighter Squadron ONE HUNDRED TWENTY-ONE, where served as Fleet Replacement Pilot, Fleet Air Detachment Duty Officer, and Flight Instructor.  In November 1961, he was assigned for a month to Fighter Squadron ONE HUNDRED FORTY-TWO as Operations Officer, then transferred to Fighter Squadron NINETY-SIX, for duty as Naval Aviator, Naval Aviation Training Operations Officer and Assistant Operations Officer.  While in that assignment he was awarded the Distinguished Flying Cross for “…extraordinary achievement in aerial flight on May 24, 1961, while participating in the Bendix Trophy Race as Pilot of an F4H Phantom Aircraft…” The citation continues…

“…Exercising outstanding airmanship and resourcefulness, (he) succeeded in winning the Bendix Trophy Race and in establishing a new transcontinental speed record for the jet aircraft from Los Angeles, California to New York, New York, with an elapsed time of two hours and forty-seven minutes, which is twenty-one minutes under the previous record time for this event…”

From July to December 1963 he had instruction at the U. S. Naval Postgraduate School, Monterey, California.  Selected as one of the third group of astronauts by the National Aeronautics and Space Administration, in October 1963, he began training at the Manned Spacecraft Center, Houston, Texas, in December 1963.  He has served as backup pilot for the Gemini VII flight.

On September 12, 1966, he served as pilot for the 44 orbit Gemini XI mission.  He executed docking maneuvers with the previously launched Agena and performed two periods of extravehicular activity which involved attaching a tether to the Agena and retrieving a nuclear emulsion experiment package.  Other highlights of the flight included the successful completion of the first tethered station-keeping exercise, establishment of a new record-setting altitude of 850 miles, and the first closed-loop controlled reentry.  The flight was concluded on September 15, 1966, with the spacecraft landing in the Atlantic, two and one-half miles from the prime recovery ship USS Guam (LPH-9).  He was awarded a Gold Star in lieu of the Second Distinguished Flying Cross with the following citation:

“For heroism and extraordinary achievement…as an Astronaut with NASA from September 12 to 15, 1966 aboard Gemini XI.  While serving as Pilot, Commander (then Lieutenant Commander) Gordon completed a space flight of seventy-one hours and sixteen minutes.  A rendezvous in the first revolution, docking, two periods of extravehicular activity, an exercise in the dynamics of two spacecraft linked together by a one hundred-foot strap and full-automatic reentry highlighted the Gemini XI mission.  During this period, Commander Gordon carried out the re-docking maneuver, the first docking by a ‘right-seater.’  During the umbilical extravehicular activity, he left the spacecraft to retrieve the S-9 Nuclear Emulsion Experiment package from the Agena…”

In addition to the Distinguished Flying Cross with Gold Star, Captain Gordon has received the NASA Exceptional Service Medal and the Navy Astronaut Wings.  He is also entitled to the Navy Occupation Service Medal and the National Defense Service Medal with bronze star.

He is a member of the Society of Experimental Test Pilots.  His hobbies include water skiing, sailing and golf.

He has logged more than 3,300 hours flying time, 2,800 hours in jet aircraft.

[END]

Published: Fri Mar 04 13:52:55 EST 2016

 

The Bendix Trophy-winning Phantom II, redesignated F-4A-4-MC in 1962, crashed near San Clemente Island, off the Pacific coast of southern California, 4 May 1964.

© 2019, Bryan R. Swopes

24 May 1956

The prototype Piper PA-24, s/n 24-1. N2024P (Piper Aircraft Corp.)
The prototype Piper PA-24 Comanche, s/n 24-1, N2024P, at Lock Haven, Pennsylvania. (Piper Aircraft Corporation)

24 May 1956: At Lock Haven, Pennsylvania, Piper Aircraft Corporation test pilot Jay Myer took the prototype Piper PA-24 Comanche, s/n 24-1, N2024P, for its first flight. The airplane was intended to compete with the Beechcraft Model 35 Bonanza which had been in production for nine years. (At least one reliable source says the first flight took place one day earlier, 23 May.)

The PA-24 was developed by Piper’s engineers from a preliminary design by Al Mooney. It is a single-engine, 4-place, low-wing monoplane of all-metal construction, with retractable tricycle landing gear. It is operated by a single pilot and is certified for VFR and IFR flight. Two prototypes were built.

Piper Aircraft Corporation prototype PA-24, s/n 24-1, in flight.
Piper Aircraft Corporation prototype PA-24 Comanche, s/n 24-1, N2024P, in flight.

The first production PA-24 Comanche made its first flight on 27 September 1957. There were some changes from the prototypes, most noticeable the trailing-link nose gear strut had been replaced with simpler oleo strut.

The PA-24 (later designated PA-24-180, reflecting its horsepower rating) is 24 feet, 9 inches (7,544 meters) long with a wingspan of 36 feet (10.973 meters) and overall height of 7 feet, 4 inches (2.235 meters). Empty weight, depending on installed optional equipment, is 1,530 pounds (694 kilograms) and maximum gross weight is 2,550 pounds (1,157 kilograms).

The first production Piper PA-24 Comanche, s/n 24-3, N5000P. (Piper Aircraft Corporation)

Early production Comanches were powered by an air-cooled, normally-aspirated, 361.007-cubic-inch-displacement (5.916 liter) AVCO Lycoming O-360-A1A horizontally-opposed overhead valve (OHV) four-cylinder engine with a compression ratio of 8.5:1. The O-360-A1A is rated at 180 horsepower at 2,700 r.p.m. at Sea Level. The direct-drive engine turned a two-bladed Hartzell constant-speed propeller with a diameter of 6 feet, 0 inches (1.829 meters). The O-360-A1A weighs 258 pounds (117 kilograms).

The PA-24-180 has a cruise speed of 139 knots (160 miles per hour/257 kilometers per hour) at 75% power, at 8,000 feet (2,438 meters). Its maximum speed is 145 knots (167 miles per hour/269 kilometers per hour) at Sea Level. With a fuel capacity of 60 gallons (227 liters), the PA-24 has a range of 782 nautical miles (900 miles/1,448 kilometers. Its service ceiling is 18,800 feet (5,730 meters).

The Piper PA-24 Comanche was produced in several variants from 1957 until 1972, when the Lock Haven factory was destroyed by flooding. A total of 4,857 PA-24s were built. Of these, 1,143 were 180-horsepower PA-24-180 Comanches.

The prototype PA-24, N2024P, has been registered to John C. Codman, Medway, New York, since 24 October 1978. The FAA registration and airworthiness certificate are current.

The first production PA-24, N5000P, with its original Lycoming engine, was exported to Canada. Its U.S. registration was cancelled 3 June 2003.

© 2018, Bryan R. Swopes

24 May 1953

Jackie Cochran in the cockpit of the Canadair CL-13 Sabre Mk.3, No. 19200, parked on Rogers Dry Lake at Edwards Air Force Base. (LIFE Magazine via Jet Pilot Overseas)
Jackie Cochran in the cockpit of the Canadair CL-13 Sabre Mk.3, No. 19200, parked on Rogers Dry Lake at Edwards Air Force Base. (J. R. Eyerman/LIFE Magazine)

24 May 1954: At Edwards Air Force Base, Jackie Cochran sets a Fédération Aéronautique Internationale (FAI) altitude record of 14,377 meters (47,169 feet) while flying the Canadair CL-13 Sabre Mk. 3, serial number 19200.¹

Cochran had set several FAI speed records with this Sabre in the previous days.

Canadair CL-13 Sabre Mk.3 No. 19200 in flight near Edwards Air Force Base, California, May 1953. (LIFE Magazine via Jet Pilot Overseas)
Canadair CL-13 Sabre Mk.3 No. 19200 in flight near Edwards Air Force Base, California, May 1953. (LIFE Magazine via Jet Pilot Overseas)

“As I climbed. . . I noticed that the sky above was growing darker until it became a dark blue. The sun is a bright globe up there above but there are no dust particles at that height to catch the sun’s rays, so there is not what we know as “sunshine” down on the surface. Yellow has given way to blue. The gates of heaven are not brilliantly lighted. The stars can be seen at noon.”

The Stars at Noon, by Jacqueline Cochran, Little, Brown and Company, Boston, 1954, Chapter XII, at Page 238.

Jackie Cochran and the Canadair Sabre Mk.3 at high altitude over the Southern California desert. (LIFE Magazine via Jet Pilot Overseas)
Jackie Cochran and the Canadair Sabre Mk.3 at high altitude over the Southern California desert. (LIFE Magazine via Jet Pilot Overseas)

During May and June 1953, Cochran, a consultant to Canadair, Ltd., flew the Sabre Mk.3 to FAI records over the 15/25 kilometer straight course, the 100-kilometer closed circuit, the 500-kilometer closed circuit. She was the first woman to “break the Sound Barrier” when she flew No. 19200 to Mach 1.04.

The Canadair Sabre Mk.3 was a one-of-a-kind CL-13 Sabre (an F-86E Sabre manufactured by Canadair, Ltd., under license from North American Aviation, Inc.) built to test the prototype Avro Canada Gas Turbine Division Orenda 3 engine. Modifications to the F-86 airframe were required to install the new, larger engine.

The Orenda 3 was an axial-flow turbojet engine with a 10-stage compressor, six combustion chambers and single-stage turbine. It produced 6,000 pounds of thrust (16.69 kilonewtons), a 15% improvement over the General Electric J47-GE-13 installed in the standard F-86E. The Orenda was 121.3 inches (3.081 meters) long, 42 inches (1.067 meters) in diameter and weighed 2,650 pounds (1,202 kilograms).

Canadair Ltd. was an aircraft manufacturer located at Cartierville, Montreal, Canada, owned by the American submarine builder, Electric Boat Company. Canadair also built licensed versions of the Douglas DC-4 (powered by Rolls-Royce Merlin engines) and the Lockheed T-33 two-place jet trainer. In 1954, the company became a part of General Dynamics.

After the speed records, No. 19200 was sent to North American Aviation for evaluation. Today, it is on static display outdoors at Wetaskiwin Regional General Airport (CEX3), Alberta, Canada.

Jackie Cochran in the cockpit of the Canadair Sabre Mk.3 No. 19200 at Edwards AFB. (LIFE Magazine)
Jackie Cochran in the cockpit of the Canadair Sabre Mk.3 No. 19200 at Edwards Air Force Base. (LIFE Magazine via Jet Pilot Overseas)

¹ FAI Record File Number 12858

© 2017, Bryan R. Swopes

24 May 1948

Jackie Cochran with NX23888, May 1948. (FAI)
Jackie Cochran with NX28388, May 1948. (FAI)

24 May 1948: Two days after setting two Fédération Aéronautique Internationale (FAI) World and U.S. National Aeronautic Association speed records with her P-51B Mustang, Jackie Cochran sets two more.

Flying her “Lucky Strike Green” North American Aviation P-51B-15-NA, serial number 43-24760, civil registration NX28388, Cochran flew an average of 693.780 kilometers per hour (431.094 miles per hour) over a 1,000 kilometer (621.371 miles) closed circuit, without payload, at Santa Rosa Summit, near Indio, California.¹

Screen Shot 2015-01-02 at 12.18.19

Jackie Cochran bought NX28388 from North American Aviation, Inc., 6 August 1946. Cochran also flew the green P-51B in the 1946 and 1948 Bendix Trophy Races, in which she placed 2nd and 3rd. Her Mustang was flown by Bruce Gimbel in the 1947 Bendix race, placing 4th.

The P-51B and P-51C are virtually Identical. The P-51Bs were built by North American Aviation, Inc., at Inglewood, California. P-51Cs were built at North American’s Dallas, Texas plant. They were 32 feet, 2.97 inches (9.829 meters) long, with a wingspan of 37 feet, 0.31-inch (11.282 meters) and overall height of 13 feet, 8 inches (4.167 meters) high. The fighter had an empty weight of 6,985 pounds (3,168 kilograms) and a maximum gross weight of 11,800 pounds (5,352 kilograms).

The P-51B was the first version of the North American Aviation fighter to be powered by the Merlin engine in place of the Allison V-1710. Rolls-Royce had selected the Packard Motor Car Company to build Merlin aircraft engines in the United States under license. NX28388 was powered by a Packard-built V-1650-7, serial number V332415, which was based on the Merlin 66. It was a right-hand tractor, liquid-cooled, supercharged 1,649-cubic-inch-displacement (27.04-liter), single overhead cam (SOHC) 60° V-12 engine, which produced 1,490 horsepower at Sea Level, turning 3,000 r.p.m. at 61 inches of manifold pressure (V-1650-7). (Military Power rating, 15 minute limit.) The engine drove a four-bladed Hamilton Standard Hydromatic constant-speed propeller with a diameter of 11 feet, 2 inches (3.404 meters) through a 0.479:1 gear reduction.

Screen-Shot-2014-12-30-at-19.30.27
Jackie Cochran’s North American Aviation P-51B Mustang, NX28388, on the flight line at the Cleveland National Air Races, 1948. (San Diego Air and Space Museum Archives)

The P-51B had a cruise speed of 362 miles per hour (583 kilometers per hour) and the maximum speed was 439 miles per hour (707 kilometers per hour) at 25,000 feet (7,620 meters). The service ceiling was 41,900 feet (12,771 meters). With internal fuel, the combat range was 755 miles (1,215 kilometers).

In military service, armament consisted of four Browning AN-M2 .50-caliber machine guns, mounted two in each wing, with 350 rounds per gun for the inboard guns and 280 rounds per gun for the outboard.

1,988 P-51B Mustangs were built at North American’s Inglewood, California plant and another 1,750 P-51Cs were produced at Dallas, Texas. This was nearly 23% of the total P-51 production.

Jackie Cochran's green North American Aviation P-51B-15-NA Mustang, NX28388. (FAI)
Jackie Cochran’s green North American Aviation P-51B-15-NA Mustang, NX28388. (FAI)

While being ferried back to the West Coast after the 1948 Bendix Trophy Race, NX28388 crashed six miles south of Sayre, Oklahoma, 8 September 1948, killing the pilot, Sampson Held. Two witnesses saw a wing come off of the Mustang, followed by an explosion.

Jackie Cochran's National Aeronautic Association Certificate of Record at the San Diego Air and Space Museum Archives (© 2015, Bryan R. Swopes)
Jackie Cochran’s National Aeronautic Association Certificate of Record at the San Diego Air and Space Museum Archives (© 2015, Bryan R. Swopes)

¹ FAI Record File Numbers 4473, 12148

© 2017, Bryan R. Swopes

24 May 1930

Amy Johnson lands her de Havilland DH.60G Gipsy Moth, G-AAAH, “Jason,” at Darwin, Northern Territory, Australia, 24 May 1930. (Fox Photo/Getty Images)

24 May 1930: After a 19-day, 11,000-mile (17,700 kilometers), solo flight from Croyden Aerodrome, London, England, 26-year-old Miss Amy Johnson arrived at Darwin, Australia, in her de Havilland DH.60G Gipsy Moth, G-AAAH, named Jason.¹ She was awarded a £10,000 prize from the Daily Mail newspaper.

Amy Johnson was awarded a prize of 10,000 by the Daily Mail for her flight. (DailyMail.com)
Amy Johnson was awarded a prize of £10,000 by the Daily Mail for her flight. (DailyMail.com)

Miss Johnson’s flight was made in 18 legs. From London, she flew to Aspern, Austria; San Stefano, Republic of Turkey; Aleppo, French Mandate of Syria; Baghdad, Kingdom of Iraq; Bandar-Abbas, Persia; Karachi, Sindh; Jhansi, British India; Allahabad, British India; Calcutta, British India; Insein, Burma; Bangkok, Kingdom of Siam; Singora, Siam; Singapore, Straits Settlements; Tjomal, Samarang, and Sourabaya, Dutch East Indies; Atambua, Dutch Timor; and across the Timor Sea to Darwin, Northern Territory, Commonwealth of Australia.

Route of Amy Johnson’s flight to Australia, 5–24 May 1930. (FLIGHT, 30 May 1930, No. 1118, Vol. XXII, No. 22, at Page 578.)

For her accomplishment, Miss Johnson was appointed Commander of the Most Excellent Order of the British Empire (C.B.E.). She was also awarded the Harmon Trophy, “for the most outstanding international achievements in the arts and/or science of aeronautics for the preceding year, with the art of flying receiving first consideration.”

Amy Johnson with her DH.60 Gipsy Moth at Calcutta, May 1930. (DailMail.com)
Amy Johnson with her DH.60 Gipsy Moth at Calcutta, 12 May 1930. (DailyMail.com)

Her Gipsy Moth is in the collection of the Science Museum, London, England.

Amy Johnson was a rated Engineer (aircraft mechanic) and Navigator, as well as a licensed Pilot. She had set many flight records, both individually and with her husband, James Mollison, whom she had married in 1932. He proposed to her during an airplane flight, only eight hours after having met her.

Amy Johnson arrives at Darwin in her DH60G, G-AAAH, 24 May 1930.
Amy Johnson arrives at Darwin in her DH60G, G-AAAH, 24 May 1930.

During World War II, Amy Johnson flew for the Royal Air Force as a First Officer of the Air Transport Auxiliary (equivalent to the RAF rank of Flight Lieutenant). On 5 January 1941, at approximately 3:30 p.m., Johnson bailed out of the Oxford and parachuted into the Thames Estuary. The airplane crashed into the river a short distance away and sank.

Amy Johnson’s parachute was seen by the crew of HMS Haslemere, a barrage balloon tender assigned to the Channel Mobile Balloon Barrage in the Estuary. They attempted to rescue her and in the process, the ship’s captain, Lieutenant Commander Walter Edmund Fletcher, Royal Navy, dove into the water. In the cold temperatures and rough conditions, Fletcher died. For his effort to rescue Johnson, he was awarded the Albert Medal, posthumously.

In recent years, stories have emerged that the AS.10 was shot down after Johnson twice gave the incorrect response to a radio challenge. Tom Mitchell, an anti-aircraft gunner of the 58th (Kent) Heavy Anti-Aircraft Artillery Regiment, at Iwade, a small village along the shore of the Thames Estuary, said in 1999 that he shot her down under orders, firing 16 shells at the Oxford. The men of the battery were ordered to never mention the incident. There were contemporary reports that a destroyer had also fired on Johnson, though the Admiralty denied this.

Amy Johnson’s de Havilland DH.60G G-AAAH. (Mirrorpix)

The de Havilland DH.60 was a light-weight, two-place, single-engine, single-bay biplane. The fuselage was covered with plywood and the wings and tail surfaces were covered with fabric. It was 23 feet, 5½ inches (7.150 meters) long with a wingspan of 29 feet, 0 inches (8.839 meters) and overall height of 8 feet, 9½ inches (2.680 meters).

The airplane was designed so that the wings could be folded parallel to the fuselage, giving it an approximate width of 9 feet (2.7 meters). The wings had a chord of 4 feet, 3 inches (1.295 meters). The vertical gap between the wings was 4 feet, 10 inches (1.473 meters) and lower wing was staggered 3 inches (7.62 centimeters) behind the upper. Both wings had 3.5° angle of incidence and 3.5° dihedral. There was no sweep.

Empty, the DH.60 had a weight of 764 pounds (346.6 kilograms) and loaded weight of 1,650 pounds (748 kilograms).

De Havilland DH.60 Moth three-view illustration with dimensions. (FLIGHT, 5 March 1925, Page 127)

The original DH.60 Moth, which first flew in 1925, was powered by an air-cooled, normally-aspirated 4.503 liter (274.771-cubic-inch-displacement) A.D.C. Aircraft Ltd., Cirrus inline 4-cylinder overhead valve (OHV) engine with two valves per cylinder and a compression ratio of 5.4:1. The direct-drive engine produced 60 horsepower at 1,800 r.p.m., and 65 horsepower at 2,000 r.p.m. The Cirrus was 0.983 meters (3.225 feet) long, 0.908 meters (2.979 feet) high and 0.450 meters (1.476 feet) wide. It weighed 260 pounds (118 kilograms). The A.D.C. Cirrus was designed by Major Frank Bernard Halford, who later designed the de Havilland Gipsy engine, as well as the Goblin and Ghost turbojet engines.

The DH.60G Gipsy Moth was first produced in 1928. It was powered by a 318.09-cubic-inch-displacement (5.212 liter) air-cooled de Havilland Gipsy I inline 4-cylinder direct-drive engine with a compression ratio of 5:1. It was capable of producing 130 horsepower, but de-rated to 100 horsepower at 2,100 r.p.m. The Gipsy I was 40.5 inches (1.029 meters) long, 29.9 inches (0.759 meters) high and 20 inches (0.508 meters) wide. It weighed 285 pounds (129 kilograms).

The Gipsy Moth has a cruise speed of 85 miles per hour (137 kilometers per hour) and maximum speed of 102 miles per hour (164 kilometers per hour). Range for the standard aircraft is 320 miles (515 kilometers). The service ceiling is 14,500 feet (4,420 meters).

De Havilland built 8 pre-production and 31 production DH.60 Moths. 595 DH.60s of all variants were produced at Stag Lane.

Amy Johnson's de Havilland DH.60G Gipsy Moth, Jason, G-AAAH, at the Science Museum, London.
Amy Johnson’s de Havilland DH.60G Gipsy Moth, Jason, G-AAAH, at the Science Museum, London. (Science Museum)

¹ Amy Johnson’s father, John William Johnson, provided £600 to pay for the airplane. He worked for Andrew Johnson & Knudtzon and Co., Ltd., which used “Jason” as a trademark. The Automobile Association’s badge appears on the Gipsy Moth at the Science Museum, although it was not present on the airplane during her record-breaking flight.

Amy Johnson (National Library of Australia nla.obj-162255730)

© 2019, Bryan R. Swopes