Daily Archives: September 3, 2017

3 September 1954

Major John L. Armstrong, U.S. Air Force, standing on the wing of his record-setting F-86H-1-NH  Sabre. (Jet Pilot Overseas)

3 September 1954: At the Dayton Air Show, being held for the first time at the James M. Cox Municipal Airport, Major John L. (“Jack”) Armstrong, U.S. Air Force, flew his North American Aviation F-86H-1-NH Sabre, 52-1998, to a Fédération Aéronautique Internationale (FAI) World Record for Speed Over a Closed Circuit of 500 Kilometers Without Payload, averaging 1,045.206 kilometers per hour (649.461 miles per hour).¹

Similar to the F-86H-1-NA Sabre flown by Captain Armstrong, this is F-86H-10-NH 53-1298. (U.S. Air Force)
Similar to the F-86H-1-NH Sabre flown by Captain Armstrong, this is F-86H-10-NH 53-1298. (U.S. Air Force)

The F-86H was a fighter-bomber variant of the famous Sabre Jet day fighter. It was equipped with a much more powerful General Electric J73-GE-3 turbojet engine. The engine was larger that the J47 used in previous F-86 models, and this required a much larger air intake and airframe modifications. The fuselage was 6 inches deeper and two feet longer than the F-86F. This accommodated the new engine and an increase in fuel load. The tail surfaces were changed with an increase in the height of the vertical fin and the elevators were changed to an “all-flying” horizontal stabilizer. The first F-86Hs built retained the six Browning AN-M3 .50 caliber machine guns of the F-86F, but this was quickly changed to four Pontiac M39 20 millimeter revolver cannon.

Another view of North American Aviation F-86-10-NH Sabre 53-1298. This fighter bomber i similar to the airplane flown by Colonel Armstrong to set a world speed record. (U.S. Air Force)
Another view of North American Aviation F-86-10-NH Sabre 53-1298. This fighter bomber is similar to the airplane flown by Major Armstrong to set a world speed record. (U.S. Air Force)

The North American Aviation F-86H Sabre was 38 feet, 10 inches (11.836 meters) long with a wingspan of 39 feet, 1 inch (11.913 meters) and overall height of 14 feet, 11 inches (4.547 meters). Empty weight was 13,836 pounds (6,276 kilograms) and gross weight was 24,296 pounds (11,021 kilograms).

The F-86H was powered by a General Electric J73-GE-3D or -3E engine, a single-spool, axial-flow, turbojet engine, which used a 12-stage compressor section with variable inlet vanes, 10 combustion chambers and 2-stage turbine section. It produced 8,920 pounds of thrust (39.68 kilonewtons) at 7,950 r.p.m. The J73 was 16 feet, 8 inches (5.08 meters) long, 3 feet, 3.5 inches (1.03 meters) in diameter and weighed 3,650 pounds (1,656 kilograms).

The F-86H had a maximum speed of 692 miles per hour (1,114 kilometers per hour) at Sea Level and 617 miles per hour (993 kilometers) at 30,000 feet (9,144 meters). The fighter bomber had an initial rate of climb of 12,900 feet per minute (65.53 meters per second) and it could reach 30,000 feet in 5.7 minutes. The service ceiling was 50,800 feet (15,484 meters). With bombs, the F-86H had a combat radius of 403 miles (649 kilometers) at 552 miles per hour (888 kilometers per hour). The maximum ferry range was 1,810 miles (2,913 kilometers).

F-86H Sabres (after the first ten production airplanes) were armed with four Pontiac M39 20 mm autocannon with 600 rounds of ammunition. In ground attack configuration, they could carry rockets and bombs or “Special Store” that would be delivered by “toss bombing.” 473 F-86H Sabres were built before production ended.

The F-86H Sabre became operational in 1954, but by 1958 all that remained in the U.S. Air Force Inventory were reassigned to the Air National Guard. The last one was retired in 1972.

North American Aviation F-86H Sabre. (U.S. Air Force)

John L. Armstrong was born in Orange County, California, 19 July 1922. He was the fourth child of Milton Williams Armstrong, an engineer, and Olive M. Meyer Armstrong. As a child, he was called “Jake.”

Major Armstrong had been a fighter pilot during World War II, flying Lockheed P-38 Lightnings, initially with the 554 Fighter Training Squadron, 496th Fighter Training Group.

On 13 March 1944, Armstrong made a forced landing at North Killingholme when his fighter ran out of fuel.

2nd Lieutenant Armstrong was assigned to the 79th Fighter Squadron, 20th Fighter Group based at RAF Kings Cliffe, Northamptonshire, England, 26 March 1944. He flew the Lockheed P-38 Lightning.

Lt. John L. Armstrong, 79th Fighter Squadron, 20th Fighter Group, with a Lockheed P-38 Lightning,1944. (The 20th Fighter Group Project)

The 79th transitioned to the P-51 Mustang. Armstrong was promoted to first lieutenant 26 June 1944. He was officially credited with having destroyed one enemy Focke-Wulf Fw 190. On 28 August 1944, while flying his 30th combat mission, his North American Aviation P-51D-5-NA Mustang, 44-13791, Guardian Angel,  was shot down by anti-aircraft gunfire while he was attacking a railway roundhouse at Bad Greuznach, Germany. Armstrong bailed out but was captured and held at Stalag Luft I at Barth, Western Pomerania. He was returned to U.S. military control in June 1945.

Major Armstrong had been awarded the Distinguished Flying Cross, the Air Medal with five oak leaf clusters (six awards), the Purple Heart, the Prisoner of War Medal, World War II Victory Medal, and the European-African-Middle Eastern Campaign Medal.

Two days after setting the speed record, Jack Armstrong was attempting to increase it. His Sabre broke up in flight and Major Armstrong was killed. His remains were buried at the Loma Vista Memorial Park, Fullerton, California, 11 September 1954.

This exhibit at the National Museum of the United States Air Force, Wright-Patterson AFB, ohio, commemorates Major Armstrong's record-setting flight. His flight helmet is included in the display. (U.S. Air Force)
This exhibit at the National Museum of the United States Air Force, Wright-Patterson AFB, Ohio, commemorates Major Armstrong’s record-setting flight. His flight helmet is included in the display. Visible behind the display case is North American Aviation F-86H-10-NH Sabre 53-1352.  (U.S. Air Force)

¹ FAI Record File Number 8860

© 2017, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

3 September 1932

James H. Doolittle with his Gee Bee R-1, NR2100, at the Cleveland National Air Races, 1932. (National Air and Space Museum, Archives Division)
The Thompson Trophy

3 September 1932: At the Cleveland National Air Races, James H. (“Jimmy”) Doolittle won the Thompson Trophy Race with his Granville Brothers Aircraft Company Gee Bee Supersportster R-1, NR2100.

He also set a Fédération Aéronautique Internationale (FAI) World Speed for Record Over a 3 Kilometer Course, averaging 473.82 kilometers per hour (294.42 miles per hour).¹

The highest speed attained by Doolittle during his four passes over the 3-kilometer course was 497.352 kilometers per hour (309.040 miles per hour).

Jimmy Doolittle crosses the finish line at Cleveland, 1932.

The Gee Bee was a purpose-built racing airplane. It was a very small airplane, with short wings and small control surfaces. It had gained a reputation as a dangerous airplane. A number of famous racers of the time were killed when they lost control of the Gee Bee. However, Doolittle had a different opinion: “She is the sweetest ship I’ve ever flown. She is perfect in every respect and the motor is just as good as it was a week ago. It never missed a beat and has lots of stuff in it yet. I think this proves that the Granville brothers up in Springfield build the very best speed ships in America today.”

Granville Brothers Gee Bee Supersportster R-1 NR2100.

The Gee Bee Supersportster R-1 was a single-seat, single engine, low-wing monoplane with fixed conventional landing gear. The airplane had been designed for a load factor of 12. It was 17 feet, 8 inches (5.385 meters) long with a wingspan of 25 feet, 0 inches (7.620 meters), and height of 8 feet, 2 inches (2.489 meters). The fuselage had a maximum diameter 5 feet, 1 inch ( meters). The wings were wire-braced. They had a 2.5° angle of incidence and 4.5° dihedral. Their aspect ratio was 6:1, and the wing area was 75 square feet (7.968 square meters).

The R-1 had an empty weight of 1,840 pounds (834.6 kilograms), gross weight of 2,415 pounds (1,095.4 kilograms), and maximum takeoff weight of 3,075 pounds (1,394.8 kilograms).

The Gee Bee R-1 was powered by an air-cooled, supercharged, 1,343.80-cubic-inch-displacement (22.021 liter) Pratt & Whitney Wasp T3D1 nine-cylinder direct -drive radial engine. It was rated at 730 horsepower at 2,300 r.p.m. at Sea Level. The engine turned a two-bladed U.S. Smith Engineering Co. adjustable-pitch propeller with a diameter of 8 feet, 0 inches (2.438 meters). The engine was enclosed in a NACA cowling. The T3D1 was 3 feet, 6.63 inches (1.083 meters) long, 4 feet, 3.44 inches (1.307 meters) in diameter, and weighed 763 pounds (346 kilograms).

Granville Brothers Supersportser R-1, NR2100. (NASM)

The Gee Bee R-1 had a cruise speed was 260 miles per hour (418.4 kilometers per hour), and its maximum speed was more than 309 miles per hour (497 kilometers per hour). The stall speed was rather high at 90 miles per hour (144.8 kilometers per hour), as a result of optimizing the airplane for high speed. The air racer could climb at 6,100 feet per minute (31 meters per second). The Gee Bee R-1 had a range of 630 miles (1,014 kilometers) at full throttle.²

Gee Bee Supersportster R-1 NR2100, #11, was later re-engined with a Pratt & Whitney Hornet. It was destroyed when it crashed on takeoff after refueling at Indianapolis, Indiana, 1 July 1933. The pilot, Russell Boardman, was killed.

Jimmy Doolittle hops out of the Bee Bee R-1. (San Diego Air and Space Museum)

Jimmy Doolittle was one of America’s foremost pioneering aviators. He set many records, won air races, tested and developed new flying equipment and techniques. He was a highly-educated military officer, having earned his Bachelor of Arts from the University of California Berkeley School of Mines, and M.S and D.Sc. degrees in Aeronautical Engineering from the Massachusetts Institute of Technology.

During World War II Colonel Doolittle planned and led the famous Halsey-Doolittle Raid against Japan, 18 April 1942, for which he was awarded the Medal of Honor.

As a brigadier general, Doolittle commanded the Twelfth Air Force in North Africa. Promoted to major general, he was given command of the Fifteenth Air Force in the Mediterranean Theater. From 1943 until 1945, Lieutenant General Doolittle commanded Eighth Air Force. He was preparing his command to move against Japan, equipped with Boeing B-29 Superfortress bombers when World War II came to an end.

After the war, Lieutenant General Doolittle was placed on the inactive list. On 4 April 1985, by Act of Congress, James H. Doolittle was promoted to General, United States Air Force.

Lieutenant General James H. Doolittle, U.S. Army Air Force (U.S. Army Photo C-2102)

¹ FAI Record File Number 8751

² All Gee Bee Supersportster R-1 specifications from Z.D. Granville, writing in Aero Digest Magazine, July 1933. See http://goldenageofaviation.org/geebeer2.html

© 2017, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather