Tag Archives: World Record for Speed Over a Closed Circuit of 1000 Kilometers With a 1000 Kilogram Payload

27 July 1976

Lockheed SR-71A 61-7958. (FAI)
Lockheed SR-71A 61-7958. (FAI)

27 July 1976: Major Adolphus H. Bledsoe, Jr., pilot, and Major John T. Fuller, RSO, flew a Lockheed SR-71A, 61-7958, to a Fédération Aéronautique Internationale (FAI) Absolute World Record Speed of 2,092.29 miles per hour (3,367.22 kilometers per hour) over a 1,000 kilometer closed circuit.

FAI Record File Num #3928 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Speed over a closed circuit of 1 000 km without payload
Performance: 3 367.22 km/h
Date: 1976-07-27
Course/Location: Beale Air Force Base, CA (USA)
Claimant Adolphus Bledsoe (USA)
Aeroplane: Lockheed SR-71 “Blackbird” (17958)
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

FAI Record File Num #3929 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Speed over a closed circuit of 1 000 km with 1 000 kg payload
Performance: 3 367.22 km/h
Date: 1976-07-27
Course/Location: Beale Air Force Base, CA (USA)
Claimant Adolphus Bledsoe (USA)
Aeroplane: Lockheed SR-71 “Blackbird” (17958)
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

FAI Record File Num #3930 [Direct Link]
Status: ratified – superseded since approved
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-Absolute (Absolute Record of classes C, H and M)
Category: Not applicable
Group: Not applicable
Type of record: Speed
Performance: 3 367.22 km/h
Date: 1976-07-27
Course/Location: Beale Air Force Base, CA (USA)
Claimant Adolphus Bledsoe (USA)
Aeroplane: Lockheed SR-71 “Blackbird” (17958)
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

De La Vaulx Medal
De La Vaulx Medal

The following day, the same airplane, flown by two different crews, set a World Record for Altitude in Horizontal Flight at 85,068 feet (25,929 meters) and a World Record for Speed Over a Straight 15/25 Kilometer Course, 2,193.17 miles per hour (3,529.56 kilometers per hour). This second speed record became the new Absolute Speed Record, superseding the record set on this date by Alphonsus Bledsoe and John T. Fuller.

All six airmen were awarded the Henry De La Vaulx Medal by the FAI.

Today, 61-7958 is on display at the Museum of Aviation, Warner-Robins, Georgia. 32 of these long range strategic reconnaissance aircraft were built by the Lockheed Skunk Works.

Lockheed SR-71A 61-7958 at Beale AFB, 28 July 1976. (U.S. Air Force)
Lockheed SR-71A 61-7958 at Beale AFB, 28 July 1976. (U.S. Air Force)

© 2015, Bryan R. Swopes

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14 January 1962

Convair B-58A-10-CF Hustler 59-2441, Thompson Trophy winner. (U.S. Air Force)
Convair B-58A-10-CF Hustler 59-2441, Thompson Trophy winner. (U.S. Air Force)

14 January 1961: Lt. Col. Harold E. Confer, Lt. Col. Richard Weir and Major Howard Bialas, flying Convair B-58A-10-CF Hustler 59-2441, Roadrunner, obliterated the FAI closed-course speed records established only two days earlier by another B-58 crew flying 59-2442. They averaged 2,067.58 kilometers per hour (1,284.73 miles per hour) over a 1,000 kilometer closed circuit, more than 200 miles per hour faster, and set three Fédération Aéronautique Internationale records. They were awarded the Thompson Trophy.

59-2441 was sent to The Boneyard in 1970, and along with its sister, 59-2442, scrapped in 1977.

Colonel Harold E. Confer, U.S. Air Force
Colonel Harold E. Confer, U.S. Air Force

FAI Record File Num #4565 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Speed over a closed circuit of 1 000 km without payload
Performance: 2 067.58 km/h
Date: 1961-01-14
Course/Location: Edwards AFB, CA (USA)
Claimant Harold E. Confer (USA)
Aeroplane: Convair B-58A Hustler (USAF 92-441)
Engines: 4 G E J79

FAI Record File Num #4566 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Speed over a closed circuit of 1 000 km with 1 000 kg payload
Performance: 2 067.58 km/h
Date: 1961-01-14
Course/Location: Edwards AFB, CA (USA)
Claimant Harold E. Confer (USA)
Aeroplane: Convair B-58A Hustler (USAF 92-441)
Engines: 4 G E J79

FAI Record File Num #4567 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Speed over a closed circuit of 1 000 km with 2 000 kg payload
Performance: 2 067.58 km/h
Date: 1961-01-14
Course/Location: Edwards AFB, CA (USA)
Claimant Harold E. Confer (USA)
Aeroplane: Convair B-58A Hustler (USAF 92-441)
Engines: 4 G E J79

Thompson Trophy at the Smithsonian Institution National Air and Space Museum. (NASM)
Thompson Trophy at the Smithsonian Institution National Air and Space Museum. (NASM)

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. Four General Electric J79-GE-5 afterburning turbojet engines, producing 15,000 pounds of thrust, each, are suspended under the wings from pylons. 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 W-39,  B43 or B61 nuclear bombs. The weapons could be carried in a jettisonable centerline pod, which also carried fuel. The smaller bombs could be carried on underwing hardpoints. There was a defensive 20 mm M61 rotary cannon mounted in the tail, with 1,200 rounds of ammunition and controlled by the Defensive Systems Officer.

Convair B-58A-10-CF Hustler 59-2441, Thompson Trophy winner, at Davis-Monthan AFB. (U.S. Air Force)
Convair B-58A-10-CF Hustler 59-2441, Thompson Trophy winner, at Davis-Monthan AFB. (U.S. Air Force)

© 2016, Bryan R. Swopes

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