Daily Archives: September 13, 2017

13 September 1985

McDonnell Douglas F-15A-17-MC Eagle, 76-0084, “Celestial Eagle,” ASAT missile launch, 13 September 1985. (U.S. Air Force)

13 September 1985: Major Wilbert D. Pearson, U.S. Air Force, flying McDonnell Douglas F-15A-17-MC, 76-0084, Celestial Eagle, launched an anti-satellite missile in a test, approximately 200 miles (322 kilometers) west of Vandenberg Air Force Base, on the central coast of California.

From level flight at Mach 1.22, Major Pearson pulled into a 3.8 G zoom to a 65° angle of climb. On reaching 38,100 feet (11,613 meters) and having slowed to 0.934 Mach, the LTV ASM-135 missile was automatically launched. At 1:42 p.m. Pacific Daylight Time, the 30 pound (13.6 kilogram) kinetic interceptor collided with the Solwind P78-1 satellite at an altitude of 345 miles (555 kilometers) and a closing speed of 15,000 miles per hour (21,140 kilometers per hour).

ASM-135 first stage ignition. (U.S. Air Force)
Ball Aerospace Solwind P78-1 (NASA)
Ball Aerospace Solwind P78-1 (NASA)

Solwind P78-1 was an Orbiting Solar Observatory satellite built by Ball Aerospace & Technologies Corp., of Broomfield, Colorado. The satellite had been launched from Vandenburg Air Force Base, 24 February 1979, and was in an almost circular orbit. P78-1 weighed 1,870 pounds (848 kilograms). Degraded batteries had made the satellite difficult to work and it was planned to terminate the mission when it was selected as the target for the ASAT.

The ASM-135 was a three-stage guided missile using a Boeing AGM-69 Short Range Attack Missile (SRAM) as its first stage and an LTV Aerospace Altair 3 rocket as the second stage. The third stage was the homing vehicle, which used an infrared seeker to intercept the targeted satellite. This was not an explosive warhead. The satellite was destroyed by the energy of the very high speed impact. The ASM-135 is 18 feet (5.48 meters) long, 20 inches (50.8 centimeters) in diameter and weighs 2,600 pounds (1,180 kilograms).

This incident was used as a plot device in Tom Clancy’s speculative World War III novel, Red Storm Rising.

22 years later, Celestial Eagle was assigned to the 125th Fighter Wing, Florida Air National Guard, at Homestead Air Reserve Base, and was flown by General Pearson’s son, Captain Todd Pearson of the 390th Fighter Squadron, Idaho Air National Guard. F-15A-17-MC 76-0084 was placed in storage at Davis-Monthan Air Force Base, Tucson, Arizona, 19 August 2010.

Major General Doug Pearson, USAF (Ret.), with Captain Todd Pearson, USAF, and the “Celestial Eagle,” 13 September 2007. (U.S. Air Force)

© 2017, Bryan R. Swopes

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13 September 1935

Howard Hughes in the cockpit of the H-1 Special, NR258Y, 1935. (FAI)
Howard Hughes in the cockpit of the Hughes H-1 Special, NR258Y, 1935. (FAI)

13 September 1935: Flying his Hughes H-1 Special, NR258Y,  Howard Robard Hughes, Jr. set a Fédération Aéronautique Internationale (FAI) World Record for Speed Over a 3 Kilometer Course near Santa Ana, California. Making four passes over the measured course, two in each direction, his average speed was 567.12 kilometers per hour (352.39 miles per hour).¹ This was 61.27 kilometers per hour (38.07 miles per hour) faster than the previous record which had been set by Raymond Delmotte, 24 December 1934.

Hughes H-1 Special NR258Y. (FAI)
Hughes H-1 Special NR258Y. (FAI)

Just after completing the final pass over the course, the airplane’s engine stopped due to fuel starvation. Hughes made a belly landing in a farm field. He was uninjured and the airplane received only minor damage.

Howard Hughes with his H-1, NR258Y, in a been field near Santa Ana, California, 13 September 1935.
Howard Hughes with his H-1, NR258Y, in a farmer’s field near Santa Ana, California, 13 September 1935. (Unattributed)

The Hughes H-1 (Fedral Aviation Administration records identify the airplane as the Hughes Model 1B, serial number 1) was a single-seat, single-engine low-wing monoplane with retractable landing gear. Emphasis had been placed on an aerodynamically clean design and featured flush riveting on the aluminum skin of the fuselage. The airplane was 27 feet, 0 inches long (8.230 meters) with a wingspan of 25 feet (7.6 meters) and height of 8 feet (2.438 meters). (A second set of wings with a span of 31 feet, 9 inches (9.677 meters) was used on Hughes’ transcontinental flight, 19 January 1937). The H-1 has an empty weight of 3,565 pounds (1,617 kilograms) and gross weight of 5,492 pounds (2,491 kilograms).

The H-1 was powered by a air-cooled, supercharged 1,534.943-cubic-inch-displacement (25.153 liter) Pratt & Whitney Twin Wasp Jr. two-row, fourteen-cylinder radial engine. Pratt & Whitney produced 18 civil and 22 military (R-1535) versions of the Twin Wasp Jr., in both direct-drive and geared configurations, rated from 650 to 950 horsepower. It is not known which version powered the H-1, but various sources report that it was rated from 700 to 1,000 horsepower. The engine drove a two-bladed Hamilton Standard controllable pitch propeller.

The Hughes H-1 Racer, NR258Y, at the National Air and Space Museum. (NASM)
The Hughes H-1 Racer, NR258Y, at the National Air and Space Museum. (Eric Long/NASM)

¹ FAI Record File Number 8748

© 2017, Bryan R. Swopes

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13 September 1931

Supermarine S.6B S.1595 at the London Science Museum. (sciencemuseum.org.uk)

13 September 1931: Having won the previous two Coupe d’Aviation Maritime Jacques Schneider international seaplane races, the United Kingdom was in the position of permanently winning the famous Schneider Trophy if it were to win a third consecutive race.

The 1931 race was the twelfth in a series of annual or semiannual races which were first held in 1913, specifically for seaplanes. Teams from several nations, France, Great Britain, Italy and the United States, competed with float-equipped airplanes built specifically for the races. The national team which won three consecutive races would win the series and take home the Trophy. Italy had won three times (1920, 1921, and 1926); the United States, twice (1923, 1925); and France, one time (1913). The United Kingdom had previously won in 1922, 1927 and 1929.

Royal Air Force High-Speed Flight, 1931. (Unattributed)

Having won the race in 1929, Great Britain was the host nation for 1931. Like the 1929 race, the 1931 race was held over The Solent, a body of water between the harbor city of Portsmouth, England, and the Isle of Wight. Instead of the four-sided polygon used previously, the 1931 race course was a triangle of 50 kilometers (31.07 statute miles). Competitors would make seven circuits of the course, with all left-hand turns, for a total distance of 350 kilometers (217.48 statute miles).

Competitors would fly seven counter-clockwise laps of the 50-kilometer triangular race course (FLIGHT)

Italy had been developing the Macchi-Castoldi M.C. 72 with its 3,100-horsepower, 24-cylinder Fiat AS.6 engine, but the airplane was not ready by the required date. The United States was unwilling to invest the required money and had not entered since the 1927 race. France also was not prepared to compete. Both France and Italy formally announced their intention not to compete on 4 September 1931.

This meant that only a single British airplane was required to complete the race course to win the race and permanent possession of the trophy. Three airplanes were ready, one Supermarine S.6 and two new S.6Bs.

Three racing aircraft of the Royal Air Force High-Speed Flight at RAF Calshot for the 1931 Schneider Trophy Race. Left to right, #7, Supermarine S.6B S.1596; #4, Supermarine S.6 N.248; and #1, Supermarine S.6B S.1595. (FLIGHT)

Postponed because of rain and fog on the previous day, the 1931 race started at 1:02:10 p.m., Sunday, 13 September, with the firing of the starting gun from HMS Medea. Flight-Lieutenant John Nelson Boothman, Royal Air Force, in a blue and silver Supermarine S.6B, number S.1565, taxied across the start line at 1:10:19 p.m.

Race rules required that competitors take off, circle and land on the water. They were then required to taxi on the water for two minutes, before taking off a second time to begin the officially timed race laps. Observers reported that Flight-Lieutenant Boothman’s performance of the preliminary test was flawless. He taxied into position for his second takeoff and was airborne with a 40 second run.

Flight-Lieutenant John N. Boothman (FLIGHT)

Boothman’s lap times were:

Lap 1: 552.15 kilometers per hour (343.1 miles per hour)

Lap 2: 551.5 kilometers per hour (342.7 miles per hour)

Lap 3: 547.1 kilometers per hour (340.0 miles per hour)

Lap 4: 544.5 kilometers per hour (338.3 miles per hour)

Lap 5: 546.5 kilometers per hour (339.6 miles per hour)

Lap 6: 546.1 kilometers per hour (339.4 miles per hour)

Lap 7: 543.5 kilometers per hour (337.7 miles per hour)

Overall average speed: 547.3 kilometers per hour (340.08 miles per hour)

Air Ministry,

9th October, 1931.

ROYAL AIR FORCE.

     The KING has been graciously pleased to approve of the award of the Air Force Cross to the undermentioned officers of the Royal Air Force:—

Flight Lieutenant John Nelson Boothman.

In recognition of his achievement in winning the Schneider Trophy Contest, 1931.

Supermarine S.6B, S.1596. (BAE Systems)

S.1595 was Vickers-Supermarine S.6B Monoplane, designed by Reginald Joseph Mitchell, who would later design the legendary Supermarine Spitfire fighter of World War II. The racer was developed from Mitchell’s earlier S.4, S.5 and S.6 Schneider Cup racers, and was built at the Supermarine Aviation Works (Vickers), Ltd., Southampton, on the south coast of England. There were two S.6Bs, with the second identified as S.1596.

Reginald Joseph Mitchell, C.B.E., F.R.Ae.S.

The Supermarine S.6B was a single-place, single-engine, low-wing monoplane with two fixed pontoons as an undercarriage. It was of all-metal construction and used a high percentage of duralumin, a very hard alloy of aluminum and copper, as well as other elements. The float plane was 28 feet, 10 inches (8.788 meters) long, with a wingspan of 30 feet, 0 inches (9.144 meters) and height of 12 feet, 3 inches (3.734 meters). The wing area was 145 square feet (13,5 square meters). The S.6B had an empty weight of 4,560 pounds (2,068 kilograms) and gross weight of 5,995 pounds (2,719 kilograms).

Supermarine S.6B S.1596 (BAE Systems)

In an effort to achieve the maximum possible speed, aerodynamic drag was eliminated wherever possible. There were no radiator or oil cooler intakes. The wing surfaces were constructed of two thin layers of duralumin with a very small space between them. The engine coolant, a mixture of water and ethylene glycol, was circulated between these layers, which are known as surface radiators. The engine had a high oil consumption rate and the vertical fin was the oil supply tank. The skin panels also served as surface radiators. The fuselage panels were corrugated for strength, and several small parallel passages transferred lubricating oil from the fin tank to the engine, and further cooled the oil.

Supermarine S.6B S.1596 (BAE Systems)

S.1595 was powered by a liquid-cooled, supercharged, 2,239.327-cubic-inch-displacement (36.696 liter) Rolls-Royce Type R single-overhead-camshaft (SOHC) 60° V-12 engine, number R29. The Type R was a racing engine with 4 valves per cylinder and a compression ration of 6:1. In the 1931 configuration, it produced 2,350 horsepower at 3,200 r.p.m. It used a 0.605:1 reduction gear and turned a Fairey Aviation fixed-pitch airscrew with a diameter of 8 feet, 6 inches (2.591 meters). A special fuel, a mixture of benzol, methanol and acetone with TCP anti-detonation additive, was used.

Lucy, Lady Houston, with the Royal Air Force High-Speed Flight, 1931. R.J. Mitchell, designer of the S-series racers, is standing at right. (Royal Air Force Museum)

There would have been no 1931 British Schneider Trophy Race team without the generous contribution of Lucy, Lady Houston, D.B.E., who donated £100,000 to Supermarine to finance the new aircraft. Lady Houston would later sponsor the 1933 Houston Mount Everest Flying Expedition.

The winning aircraft, S.1595, is in the collection of the Science Museum, London.

Supermarine S.6B S.1596 (BAE Systems)

John Nelson Boothman was born at Harrow, northwest London, England, 19 February 1901. He was the son of Thomas John Boothman, a railway clerk, and Mary Burgess Boothman. He  became interested in aviation while very young, and took his first flight at the age of 10, as a passenger of Samuel Franklin Cody, the first pilot to fly a powered airplane in England.

Boothman was educated at Harrow High School. In 1918, when he was 16 years old, Boothman volunteered as a driver with the Croix-Rouge française (French Red Cross), serving in the Balkans until World War I came to an end. He was awarded the Croix de Guerre.

On his return to England, he took flying lessons, and joined the Royal Air Force. He received a short-service commission as a Pilot Officer (probationary), 29 March 1921. He trained at No. 1 Flight Training School. He then joined No. 4 Squadron at Constantinople. On 22 March 1922, Boothman was confirmed in the rank of Pilot Officer. He was promoted to Flying Officer 29 September 1922.

Also in 1922, Pilot Officer Boothman married Miss Gertrude Andrews. They would have one son.

Flying Officer Boothman returned to England in 1924 and was assigned as a flight instructor at the Central Flying School. He was also a member of an aerial demonstration team.

After five years of service, on 1 January 1926 Boothman’s commission as a Flying Officer, Royal Air Force, was made permanent. He returned to the Middle East, joining No. 55 Squadron in Iraq, 21 September 1926. This was a bombing squadron, equipped with the de havilland DH-9A. Boothman was promoted to Flight-Lieutenant 1 July 1927. He served with the Air Staff before going on to No. 30 Squadron, which also flew DH-9As, as a flight commander, 24 February 1928.

Flight-Lieutenant John Nelson Boothman, Royal Air Force.

Flight-Lieutenant Boothman was assigned as a test pilot at the Marine Aircraft Experimental Establishment, Felixstowe, Suffolk, 10 February 1930. On 11 May 1931, he became a member of the High-Speed Flight at RAF Calshot.

After winning the Schneider Trophy Race, on 3 October 1931, Flight-Lieutenant Boothman was assigned as a flight commander with No. 22 Squadron, a test squadron supporting the Aeroplane Experimental Establishment at RAF Martlesham Heath. During 1932, he became seriously ill and was removed from duty for several months. He returned to duty 13 August 1932 as a test pilot in the Experimental Section at RAE Farnborough. He then served as Chief Flying Instructor, Central Flying School.

Flight-Lieutenant Boothman attended the Royal Air Force Staff College in 1935. He was promoted to the rank of Squadron Leader, 1 December 1935. From 4 January 1936, he was assigned to Air Staff, Headquarters, Coastal Command. On 26 March 1937, Squadron Leader Boothman was assigned to Air Staff, Headquarters, Royal Air Force, Far East.

Boothman was promoted to Wing Commander, 1 January 1939. In September he was placed in command of No. 44 Squadron at RAF Waddington in Lincolnshire. This was a light bomber squadron which flew Bristol Blenheims and Handley Page Hampdens.

During the early stages of World War II, Wing Commander Boothman was assigned to Air Staff—Directorate of Operations (Home), and Air Staff, Headquarters, Bomber Command. He returned to RAF Waddington in March 1940 as the station’s commanding officer. He was promoted to Group Captain (temporary), 1 March 1941, then sent to the United States as an adviser to the U.S. Army Air Forces. Boothman returned to England as commanding officer of RAF Finningley, South Yorkshire.

On 6 June 1943, Group Captain Boothman was promoted to the rank of Acting Air Commodore, and assigned as Air Officer Commanding, No. 106 Wing. The wing controlled all photographic reconnaissance units in the United Kingdom. In 1 December 1943, Air Commodore Boothman’s rank was changed from Acting to Temporary.

In July 1944 Air Commodore Boothman was assigned as Commandant, Aeroplane and Armament Experimental Establishment (A. & A.E.E.) at RAF Boscombe Down, Wiltshire. In the King’s Birthday Honours, 1944, Air Commodore Boothman was invested Companion of the Most Honourable Order of the Bath, Military Division (C.B.).

On 2 July 1945, was promoted to Acting Air Vice Marshal and appointed Assistant Chief of Air Staff (Technical Requirements). On 9 October 1945, The U.S. Army Air Forces awarded him the the medal of Commander, Legion of Merit.

Air Vice Marshal John Nelson Boothman D.F.C., A.F.C., Royal Air Force, is presented the Legion of Merit by General Carl A. Spaatz, United States Army Air Forces. (Smithsonian Institution)

Air Vice Marshal Boothman once again returned to Iraq in 1948 as Air Officer Commanding, Air Headquarters, Iraq.

On 4 September 1950, he was promoted to Acting Air Marshal, and Controller of Supply (Air), Ministry of Supply. On 15 November 1953, Air Marshal Boothman became Commander in Chief, Coastal Command and Commander in Chief (Air) Eastern Atlantic Area.

In the King’s Birthday Honours list, 7 June 1951, Air Marshal Boothman, C.B., D.F.C., A.F.C., was promoted to Knight Commander of the Military Division of the Most Excellent Order of the British Empire (K.B.E.).

In the Queen’s Birthday Honours, June 1954, Air Marshal Sir John Boothman, K.B.E., D.F.C., A.F.C., was invested Knight Commander of the Most Honourable Order of the Bath (K.C.B.).

On 1 October 1954, Sir John was promoted to the rank of Air Chief Marshal. He retired from the Royal Air Force in 1956.

Air Chief Marshal Sir John Nelson Boothman, K.C.B., K.B.E., D.F.C., A.F.C., Royal Air Force, died 29 December 1957 at the age of 57 years.

Air Vice Marshal Sir John Nelson Boothman, 1946. (Photographed by Walter Stoneman)

© 2017, Bryan R. Swopes

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