Tag Archives: Strategic Air Command

10 May 1961

Crew of The Firefly at Edwards Air Force Base, California, 10 May 1961. (Sand Diego Air and Space Museum Archives)
Crew of The Firefly, 1st Lieutenant David F. Dickerson, Major Elmer E. Murphy, and Major Eugene Moses, at Edwards Air Force Base, California, 10 May 1961. (San Diego Air and Space Museum Archives)

In 1930, aviation pioneer Louis Charles Joseph Blériot established the Blériot Trophy, to be awarded to an aviator who demonstrated flight at a speed of 2,000 kilometers per hour (1,242.742 miles per hour) for 30 minutes. The technology to accomplish this was three decades in the future.

Convair B-58A-10-CF Huslter 59-2451 taxis out at Edwards Air Force Base, California, 10 May 1961. (General Dynamics/San Diego Air and Space Museum Archives Catalog number 01 00093630)
Convair B-58A-10-CF Hustler 59-2451 taxis out at Edwards Air Force Base, California, 10 May 1961. (General Dynamics/San Diego Air and Space Museum Archives Catalog Number 01 00093632)

On 10 May 1961, a U.S. Air Force/Convair B-58A-10-CF Hustler, serial number 59-2451, The Firefly, did just that. Flown by a crew consisting of Aircraft Commander, Major Elmer E. Murphy, Navigator, Major Eugene Moses, and Defensive Systems Officer, First Lieutenant David F. Dickerson, the Mach 2+ Strategic Air Command bomber flew 669.4 miles (1,077.3 kilometers) in 30 minutes, 43 seconds. Their average speed was 1,302.07 miles per hour (2,095 kilometers per hour).

Convair B-58A-10-CF Hustler 59-2451 during Bleriot Trophy speed run, 10 May 1961. (San Diego Air and Space Museum Archives)
Convair B-58A-10-CF Hustler 59-2451 during Blériot Trophy speed run, 10 May 1961. (San Diego Air and Space Museum Archives)

The black and white marble trophy was presented to the B-58 crew by Alice Védères Blériot, widow of Louis Blériot, at Paris, France, 27 May 1961. It is on permanent display at the McDermott Library of the United States Air Force Academy, Colorado Springs, Colorado.

The Blériot Trophy, photographed 12 June 1961. "Side view of The Blériot Trophy on display. It is the figure of a naked man made of black marble in a flying position emerging from clouds. The clouds are white stone and are the figures of women in various poses on top of a marble dome." (University of North Texas Libraries)
The Blériot Trophy, photographed 12 June 1961. “Side view of The Blériot Trophy on display. It is the figure of a naked man made of black marble in a flying position emerging from clouds. The clouds are white stone and are the figures of women in various poses on top of a marble dome.” (University of North Texas Libraries)

The Convair 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 has a delta-winged configuration similar to Convair’s F-102A Delta Dagger and F-106 Delta Dart supersonic interceptors.

Convair B-58A-10-CF Hustler 59-2451 taxis back to teh ramp at Edwards Air Force Base, following teh Bleriot Trophy speed run, 10 May 1961. (General Dynamics/San Diego Air and Space Museum Archives Catolog number 01 00093633)
Convair B-58A-10-CF Hustler 59-2451 taxis back to the ramp at Edwards Air Force Base, following the Blériot Trophy speed run, 10 May 1961. (San Diego Air and Space Museum Archives)

The Hustler is 96 feet, 10 inches (29.515 meters) long, with a wing span of 56 feet, 10 inches (17.323 meters) and overall height of 31 feet 5 inches (9.576 meters). The wings’ 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. There are no flaps.

The B-58’s delta wing has a total area of 1,542.5 square feet (143.3 square meters) and the leading edges are swept back at a 60° angle. The wing has an angle of incidence of 3° and 2° 14′ dihedral (outboard of Sta. 56.5).

The B-58A had an empty weight of 51,061 pounds (23161 kilograms), or 53,581 pounds (24,304 kilograms) with the MB-1 pod. The maximum takeoff weight was 158,000 pounds (71,668 kilograms).

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. It had a Normal Power rating of 9,700 pounds of thrust (43.148 kilonewtons). The Military Power rating was 10,000 pounds (44.482 kilonewtons), and it produced a maximum 15,600 pounds (69.392 kilonewtons) at 7,460 r.p.m., with afterburner. The J79-GE-5 was 16 feet, 10.0 inches (5.131 meters) long and 2 feet, 11.2 inches (0.894 meters) in diameter. It weighed 3,570 pounds (1,619 kilograms).

The bomber had a cruise speed of 544 knots (626 miles per hour/1,007 kilometers per hour) and a maximum speed of 1,147 knots (1,320 miles per hour/2,124 kilometers per hour) at 67,000 feet (20,422 meters). The B-58A had a combat radius of 4,225 nautical miles (4,862 statute miles/7,825 kilometers). Its maximum ferry range was 8,416 nautical miles (9,685 statute miles/15,586 kilometers).

The B-58 weapons load was a combination of Mark 39, B43 or B61 thermonuclear bombs. The weapons could be carried in a jettisonable centerline pod, which also carried fuel. The four of the smaller bombs could be carried on underwing hardpoints. There was a General Electric M61 20 mm rotary cannon mounted in the tail, with 1,200 rounds of ammunition, and controlled by the Defensive Systems Officer.

The Firefly's ground crew for the Blériot Trophy speed run, 10 May 1961. (General Dynamics/San Diego Air and Space Museum Archives Catalog number 01 00093629)
The Firefly’s ground crew for the Blériot Trophy speed run, 10 May 1961. (San Diego Air and Space Museum Archives)

On 26 May 1961, The Firefly, flown by a different aircrew, set a speed record by flying New York to Paris, while enroute to the Paris Air Show, a distance of 3,626.46 miles in 3 hours, 19 minutes, 58 seconds, for an average of 1,089.36 mph.

Convair built 116 B-58s between 1956 and 1961. They were retired by 1970.

On 3 June 1961, the Blériot Trophy-winning crew of Murphy, Moses and Dickerson departed Le Bourget Airport aboard 59-2451 for the return trip to America. The B-58 crashed five miles from the airport. All three men were killed and the aircraft totally destroyed.

Convair B-58A-10-CF Hustler 59-2451, The Firefly.
Convair B-58A-10-CF Hustler 59-2451, The Firefly.

General Dynamics contributed an extensive collection of photographs of the speed run to the San Diego Air and Space Museum, which holds them in its Archives.

A 1961 Air Force film covering the event and the presentation of the Blériot Trophy can be seen on You Tube at https://youtu.be/0D_n8YRodII

© 2018, Bryan R. Swopes

30 April 1959

Convair B-36J-1-CF 52-2220 at NMUSAF, Wright-Patterson AFB, Ohio.

30 April 1959: Convair B-36J-1-CF Peacemaker, serial number 52-2220, landed at Wright-Patterson Air Force Base, Dayton, Ohio, completing the very last flight ever made by one of the giant Cold War-era bombers. It is on the collection of the National Museum of the United States Air Force.

Convair B-36J 52-2220 was among the last group of 33 B-36 bombers built. It was operated by an aircraft commander/pilot, co-pilot, two navigators, bombardier, two flight engineers, two radio operators, two electronic countermeasures operators and five gunners, a total 16 crewmembers. Frequently a third pilot and other additional personnel were carried.

Crewmebers pose in front of a B-36F, wearing capstan-type partial pressure suites for protection at high altitude. Front (L-R): G.L. Whiting, B.L. Woods, I.G. Hanten, and R.L. D’Abadie. Back (L-R):A.S. Witchell, J.D. McEachern, J.G. Parker and R. D. Norvell. (Jet Pilot Overseas)
Crew members pose in front of a Convair B-36F-1-CF Peacemaker, 49-2669, wearing David Clark Co. S-2 capstan-type partial pressure suits and early K-1 “split shell” 2-piece helmets for protection at high altitude. Front (L-R): G.L. Whiting, B.L. Woods, I.G. Hanten, and R.L. D’Abadie. Back (L-R):A.S. Witchell, J.D. McEachern, J.G. Parker and R. D. Norvell. (Jet Pilot Overseas)

The bomber is 162 feet, 1 inch (49.403 meters) long with a wingspan of 230 feet (70.104 meters) and overall height of 46 feet, 9 inches (14.249 meters). The empty weight is 171,035 pounds (77,580 kilograms) and combat weight is 266,100 pounds (120,700 kilograms). Maximum takeoff weight is 410,000 pounds (185,973 kilograms).

The B-36J has ten engines. There are six air-cooled, supercharged 4,362.49 cubic-inch-displacement (71.49 liter) Pratt & Whitney Wasp Major C6 (R-4360-53) four-row, 28-cylinder radial engines placed inside the wings in a pusher configuration. These had a compression ratio of 6.7:1 and required 115/145 aviation gasoline. The R-4360-53 had a Normal Power rating of 2,800 horsepower at 2,600 r.p.m. Its Military Power rating was 3,500 horsepower at 2,800 r.p.m., and 3,800 horsepower at 2,800 r.p.m. with water injection—the same for Takeoff. The engines turned three-bladed Curtiss Electric constant-speed, reversible propellers with a diameter of 19 feet, 0 inches (5.791 meters) through a 0.375:1 gear reduction. The R-4360-53 is 9 feet, 9.00 inches (2.972 meters) long, 4 feet, 7.00 inches (1.397 meters) in diameter, and weighs 4,040 pounds (1,832.5 kilograms).

Four General Electric J47-GE-19 turbojet engines are suspended under the wings in two-engine pods. The J47 is a  single-shaft axial-flow turbojet engine with a 12-stage compressor section, 8 combustion chambers, and single-stage turbine. The J47-GE-19 was modified to run on gasoline and was rated at 5,200 pounds of thrust (23.131 kilonewtons).

The B-36J had a cruise speed of 203 miles per hour (327 kilometers per hour) and a maximum speed of 411 miles per hour (661 kilometers per hour) at 36,400 feet (11,905 meters) . The service ceiling was 39,900 feet (12,162 meters) and its range was 6,800 miles (10,944 kilometers) with a 10,000 pound (4,536 kilogram) bomb load. The maximum range was 10,000 miles (16,093 kilometers).

Convair B-36J-1-CF Peacemaker 52-2220. (San Diego Air and Space Museum Archives)

Designed during World War II, nuclear weapons were unknown to the Consolidated-Vultee engineers. The bomber was built to carry up to 86,000 pounds (39,009 kilograms) of conventional bombs in two bomb bays. It could carry the 43,600 pound (19,776.6 kilogram) T-12 Cloudmaker, a conventional explosive earth-penetrating bomb, or several Mk.15 thermonuclear bombs. By combining the bomb bays, one Mk.17 25-megaton thermonuclear bomb could be carried.

For defense, the B-36J had six retractable defensive gun turrets and gun turrets in the nose and tail. All 16 guns were remotely operated. Each position mounted two M24A1 20 mm autocannons. 9,200 rounds of ammunition were carried.

Convair B-36 Peacemakers at Davis-Monthan AFB, Tucson, Arizona. (U.S. Air Force)

Between 1946 and 1954, 384 B-36 Peacemakers were built. They were never used in combat. Only five still exist.

Convair B-36J-1-CF 52-2220 being moved from Building 1 to Building 3 at the National Museum of the United States Air Force, October 2002. (U.S. Air Force)

© 2017, Bryan R. Swopes