3 December 1973, 02:26:00 UTC

Photographic image of the planet Jupiter, taken by Pioneer 10, 3 December 1973. (NASA)
Photographic image of the planet Jupiter, taken by Pioneer 10, 3 December 1973. (NASA Ames Research Center)

3 December 1973: At 02:26:00 UTC, the NASA interplanetary probe Pioneer 10 reached its closest approach to the gas giant, Jupiter, 132,252 kilometers (82,178 miles) above the planet’s cloud tops. At that time, Pioneer 10 had a velocity of approximately 132,000 kilometers per hour (82,021 miles per hour).

Composite of images of the planet Jupiter during Pioneer 10’s approach (lower images, left to right) and departure (upper images, right to left). NASA

During the encounter with Jupiter, more than 500 photographic images were made and transmitted to Earth. A variety of measurements were made by sensors aboard the space craft.

An artist’s conception of Pioneer 10 at Jupiter. (NASA)

Pioneer 10 was built by the TRW Space & Technology Group, Redondo Beach, California, for the NASA Ames Research Laboratory. It was launched by a three-stage Atlas Centaur rocket from Launch Complex 36A, Kennedy Space Center, Cape Canaveral, Florida, 2 March 1972.

The last signal received from Pioneer 10 was on 23 January 2003. At that time, the probe was an estimated 12 billion kilometers (80 Astronomical Units) from Earth.

© 2018, Bryan R. Swopes

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3 December 1945

Lieutenant Eric M. Brown, MBE, DSC, RNVR. © IWM (A 31015)
Lieutenant Eric M. Brown, M.B.E., D.S.C., Royal Navy. © IWM (A 31015)

3 December 1945: The first landing and takeoff aboard an aircraft carrier by a jet-powered aircraft were made by Lieutenant-Commander Eric Melrose Brown, M.B.E., D.S.C., R.N.V.R., Chief Naval Test Pilot at RAE Farnborough, while flying a de Havilland DH.100 Sea Vampire Mk.10, LZ551/G. The ship was the Royal Navy Colossus-class light aircraft carrier, HMS Ocean (R68), under the command of Captain Casper John, R.N.

For his actions in these tests, Lieutenant-Commander Brown was invested an Officer of the Most Excellent Order of the British Empire (O.B.E.), 19 February 1946.

LZ551 was the second of three prototype DH.100 Vampires, which first flew 17 March 1944. The airplane was used for flight testing and then in 1945, was modified for operation for carriers. It was named “Sea Vampire” and reclassified as Mk.10.

The DH.100 was a single-seat, single-engine fighter powered by a turbojet engine. The twin tail boom configuration of the airplane was intended to allow a short exhaust tract for the engine, reducing power loss in the early jet engines available at the time.

LZ551/G was originally powered by a Halford H.1 turbojet which produced 2,300 pounds of thrust (10.231 kilonewtons) at 9,300 r.p.m. This engine was produced by de Havilland and named Goblin.

The Vampire entered service with the Royal Air Force in 1945 and remained a front-line fighter until 1953. 3,268 DH.100s were built. There were two prototype Sea Vampires (including LZ551) followed by 18 production Sea Vampire FB.5 fighter bombers and 73 Sea Vampire T.22 two-place trainers.

LZ551 is in the collection of the Fleet Air Arm Museum, Yeovilton, Somerset.

Captain Eric ("Winkle") Brown, RNAS, aboard HMS Ocean, 3 December 1945. (Daily Mail)
Lieutenant-Commander Eric (“Winkle”) Brown, MBE, DSC, RNVR, with the second prototype de Havilland DH.100, LZ551, aboard HMS Ocean, 3 December 1945. (Daily Mail)

HMS Ocean was built at the Alexander Stephen and Sons yard on the Clyde, Glasgow, Scotland. The ship was launched in 1944 and commissioned 8 August 1945. Classed as a light fleet carrier, HMS Ocean was 630 feet (192 meters) long at the water line, with a beam of 80 feet, 1 inch (24.41 meters) and standard draft of 18 feet, 6 inches (5.64 meters) at 13,190 tons displacement; 23 feet, 3 inches (7.09 meters), at full load displacement (18,000 tons). The aircraft carrier’s  flight deck was 695 feet, 6 inches (212.0 meters) long. Ocean was driven by four Parsons geared steam turbines producing 40,000 shaft horsepower, and had a maximum speed of 25 knots (28.8 miles per hour/46.3 kilometers per hour). HMS Ocean had a crew of 1,050 sailors, and could carry 52 aircraft.

HMS Ocean served for twelve years before being placed in reserve. Five years later, she was scrapped at Faslane, Scotland.

Winkle Brown and the DH.100 Sea Vampire fly past HMS Ocean.
Winkle Brown and the DH.100 Sea Vampire fly past HMS Ocean.
A landing signal officer guides Brown to land aboard HMS Ocean.
De Havilland Sea Vampire Mk.10 catches the arresting wire aboard HMS Ocean, 3 December 1945.
De Havilland Sea Vampire Mk.10 LZ551/G catches the arresting wire aboard HMS Ocean, 3 December 1945.
De Havilland Sea Vampire Mk.10 lands aboard HMS Ocean, 3 December 1945. (BAE Systems)
De Havilland Sea Vampire Mk.10 takes off from HMS Ocean, 3 December 1945. (BAE Systems)

Captain Eric Melrose Brown, C.B.E., D.S.C., A.F.C., KCVSA, Ph.D., Hon. F.R.Ae.S., R.N., is one of aviation’s greatest test pilots. He was born at Leith, Scotland, 21 January 1918, the son of Robert John Brown and Euphemia Melrose Brown. His father, a Royal Air Force officer, took him for his first flight at the age of 8. He was educated at the Royal High School, Edinburgh, Scotland; Fettes College; and at the University of Edinburgh. He received a Master of Arts degree from the university in 1947.

This unidentified Royal Navy Fleet Air Arm petty officer appears to be Eric Brown.

Eric Brown volunteered for the Royal Navy Fleet Air Arm, 4 December 1939. Having previously learned to fly at the University Air Squadron, Brown was sent to a Flying Refresher Course at RNAS Sydenham, Belfast, Northern Ireland.

Sub-Lieutenant Eric Melrose Brown, Royal Navy Volunteer Reserve, circa 1939.

Brown received a commission as a temporary Sub-Lieutenant, Royal Navy Volunteer Reserve, 26 November 1940. He briefly served with No. 801 Squadron before being transferred to No. 802 Squadron. He flew the Grumman G-36A Martlet Mk.I (the export version of the U.S. Navy F4F-3 Wildcat fighter) from the escort carrier HMS Audacity (D10) on Gibraltar convoys.

Having shot down several enemy aircraft, including two Focke-Wulf Fw 200 Condor four-engine patrol bombers, Brown was awarded the Distinguished Service Cross. HMS Audacity was sunk by enemy submarines in the Atlantic, 21 December 1941. Brown was one of only 24 to escape from the sinking ship, but only he and one other survived long enough in the frigid water to be rescued.

Ensign Eric M.Brown with a Grumman Martlet Mk.I
Sub-Lieutenant Eric M.Brown, R.N.V.R., Fleet Air Arm, with a Grumman Martlet Mk.I, circa 1941. (Unattributed)

Sub-Lieutenant Brown met Miss Evelyn Jean Margaret Macrory on 7 April 1940. They married in 1942 and would have one son.

Brown was promoted to lieutenant, 1 April 1943. After a number of operational assignments, Lieutenant Brown was assigned to the Naval Test Squadron at the Aeroplane and Armament Experimental Establishment, Boscombe Down, in December 1943. The following month Brown was named Chief Naval Test Pilot at the Royal Aircraft Establishment, Farnborough. He held that post until 1949.

In July 1945, Eric Brown was promoted to the rank of lieutenant-commander (temporary), and then, following the war, he was transferred from the Royal Navy Volunteer Reserve to the Royal Navy, and appointed a lieutenant with date of rank to 1 April 1943.

Lieutenant Brown was awarded the King’s Commendation for Valuable Service in the Air in the New Year’s Honours List, 1949. Brown returned to No. 802 Squadron during the Korean War, flying from the aircraft  carriers HMS Vengeance (R71) and HMS Indomitable (92). He was promoted to lieutenant-commander, 1 April 1951. In September 1951, Brown resumed flight testing as an exchange officer at the U.S. Naval Air Test Center, Patuxent River, Maryland.

Commander and Mrs. Brown at RNAS Lossiemouth, circa 1954. (Daily Mail)
Commander and Mrs. Brown at RNAS Lossiemouth, circa 1954. (Daily Mail)

In 1953, Lieutenant-Commander Brown was a ship’s officer aboard HMS Rocket (H92), an anti-submarine frigate. He was promoted to commander, 31 December 1953. After a helicopter refresher course, Brown commanded a Search-and-Rescue (SAR) helicopter flight aboard HMS Illustrious. He next commanded No. 804 Squadron based at RNAS Lossiemouth, then went on to command RNAS Brawdy at Pembrokeshire, Wales.

From 1958 to 1960, Commander Brown was the head of the British Naval Air Mission to Germany. He then held several senior positions in air defense within the Ministry of Defence. He was promoted to captain 31 December 1960.

From 1964 to 1967, Brown was the Naval Attache at Bonn, Germany. He next commanded RNAS Lossiemouth, 1967–1970.

Captain Brown’s final military assignment was as Aide-de-camp to Her Majesty, Queen Elizabeth II of Great Britain.

Eric M. Brown was invested a Member of the Most Excellent Order of the British Empire (M.B.E.), 3 July 1945, for landings of a de Havilland DH.98 Mosquito aboard HMS Indefatigable, 2 May 1944. On 1 January 1970, Captain Brown was named a Commander of the Most Excellent Order of the British Empire (C.B.E.) in the Queen’s New Years Honours List.

Captain Eric Melrose Brown, CBE, DSC, AFC Hob FRAeS, RN
Captain Eric Melrose Brown, C.B.E., D.S.C., A.F.C., K.C.V.S.A., Ph.D., Hon. F.R.Ae.S., Royal Navy

Captain Eric Melrose Brown, C.B.E., D.S.C., A.F.C., K.C.V.S.A., Ph.D. Hon. F.R.Ae.S., R.N., retired from active duty 12 March 1970.

At that time, he had accumulated more than 18,000 flight hours, with over 8,000 hours as a test pilot. Captain Brown had flown 487 different aircraft types (not variants), a record which is unlikely to ever be broken. Brown made more landings on aircraft carriers than any other pilot, with 2407 landings, fixed wing, and 212 landings, helicopter. He made 2,721 catapult launches, both at sea and on land.

In 1982 and 1983, Captain Brown served as president of the Royal Aeronautical Society.

Eric “Winkle” Brown died at Redhill, Surrey, England, 21 February 2016, at the age of 97 years.

Captain Brown with the De Havilland DH.100 Sea Vampire Mk.10, LZ551, at the Fleet Air Arm Museum, Yeovilton. (Nigel Cheffers-Heard, Fleet Air Arm Museum)
Captain Eric M. Brown with the De Havilland DH.100 Sea Vampire Mk.10, LZ551, at the Fleet Air Arm Museum, Yeovilton, Somerset, England. (Nigel Cheffers-Heard, Fleet Air Arm Museum)

© 2018, Bryan R. Swopes

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3 December 1937

Alexander de Seversky and Jackie Cochran with the SEV-S1, 1937. (Cliff Henderson Collection, San Diego Air & Space Museum Archives, Catalog #: CF_09-0044)

3 December 1937: Jackie Cochran flew a Seversky SEV-S1, R18Y,¹ a variant of the P-35 fighter, from Floyd Bennett Field, Brooklyn, New York, to Miami, Florida, in 4 hours, 12 minutes, 27.2 seconds.

On the same day, Александр Николаевич Прокофьев-Северский (Alexander Nikolaievich Prokofiev de Seversky), the airplane’s designer, flew a second P-35-type airplane from New York to Havana, Cuba, in 5 hours, 3 minutes, 5 seconds.

The Miami Daily News reported:

. . . Jaqueline Cochran, 26-year-old New York woman flier, set a speed record of four hours and 12 minutes in a flight from New York City which ended at 3:21 p.m. yesterday at municipal airport. Averaging 278.13 miles an hour on her trip south, Miss Cochran beat the fastest time ever recorded either way between the two cities by eight minutes. That mark was set northbound by Howard Hughes. . .

. . . A New York-Havana non-stop flight record also was set yesterday when Maj. Alexander de Seversky flew the 1,350 miles in five hours and two minutes—two hours and one minute faster than Lieut. Commander Frank Hawks’ record of 1931. The new record-holder is expected to fly to Miami today.

Miami Daily News, Vol. XLII, No. 358, Saturday, 4 December 1937, Page 1, Column 8, and Page 2, Column 5

Jackie Cochran with the Seversky “SEV-S1 Executive,” X18Y, 1937. (Cliff Henderson Collection, San Diego Air & Space Museum Archives, Catalog #: CF_09-0043)

“. . . Sasha [de Seversky] became convinced that I could win the big New York-to-Miami air race coming up. What better rebuttal could he have than to have his plane flown 300 miles per hour [483 kilometers per hour] over a measured, timed course and to have it all done by a woman? The Army Air Forces were canceling further orders because they saw the airplane as dangerously faulty and not up to the specifications they had ordered.

“Sasha installed an extra gas tank in place of a seat for me. It wasn’t very comfortable, but what was worse was that the plane had never been test-flown with a full load of gas. I took off and discovered that the center of gravity was somewhere in the nose. God, I nearly put that plane into the bay just south of what is now Kennedy Airport. It porpoised terribly for over an hour. . .

“I did get the nose up in time to avoid a swim, but until I burned out most of the fuel in the seat tank, I really had to hold on for a rough ride—up and down the sky. From Washington  D.C., on, the situation straightened out and I got the record Sasha wanted so badly. . . .”

Jackie Cochran: An Autobiography, by Jacqueline Cochran and Maryann Bucknum Brinley, Bantam Books, New York, 1987, Pages 150–151.

“On five different occasions I have landed after a speed flight with less than two minutes of fuel remaining and once—on a record flight from New York to Miami—my engine went dead just as my wheels touched the runway. This was because of a risk I had not considered. When I reached the destination, a squadron of Navy planes was in formation flight over the airport and I had to circle before landing.”

The Stars At Noon, by Jacqueline Cochran, Little, Brown and Company, Boston, 1954, Chapter IV at Page 72.

Jackie Cochran in the cockpit of the Seversky SEV-2S Executive, NR18Y. Note the passenger windows below and behind the cockpit. (San Diego Air and Space Museum Archives)
Seversky SEV-S1, R18Y, with Jacqueline (Jackie) Cochran in the cockpit. Note the passenger cabin, behind and below the cockpit. The airplane carries Frank Sinclair’s Bendix and Thompson Trophy race number 63 on the vertical fin. (San Diego Air & Space Museum Archives, Catalog # 15_002036)

The SEV-S1 was a civil variant of Major de Seversky’s P-35A fighter, which was the U.S. Army Air Corps’ first all-metal, single-engine airplane with an enclosed cockpit and retractable landing gear.

Designed by Alexander Kartvelishvili, the airplane had originally been built as the Seversky II X, a single-place open cockpit monoplane with fixed landing gear. It was powered by an  air-cooled, supercharged 1,666.860-cubic-inch-displacement (27.315 liter) Wright Aeronautical Division GR1670A1 Whirlwind, a two-row, 14-cylinder radial engine. The GR1670A1 had a compression ratio of 6.75:1 and was rated at 775 horsepower at 2,400 r.p.m., and 830 horsepower at 2,400 r.p.m. for takeoff, using 87-octane aviation gasoline. It drove an experimental three-bladed Hamilton Standard constant-speed propeller through a 16:11 gear reduction. The GR1670A1 was 45 inches (1.143 meters) in diameter, 52-25/32 inches (1.341 meters) long, and weighed 1,160 pounds (526 kilograms).

The Seversky II X was reconfigured as two-place monoplane fighter to compete in a fly-off at Wright Field against the Curtiss-Wright Model 75 Hawk and the Northrop 3A for the Air Corps fighter contract in 1935. The airplane was redesignated SEV-2XP and carried the registration mark X18Y.

The Seversky SEV-2XP X18Y in the two-place, fixed landing gear configuration. (Ray Wagner Collection, San Diego Air & Space Museum Archives, Catalog #: 16_006753)

In mid May 1935, de Seversky was flying the prototype from the company’s Farmingdale, New York factory toward Wright Field, located near Dayton, Ohio. The airplane’s engine overheated and stopped. He made a forced landing at a small hilltop landing field near St. Clairsville, Ohio, during which the airplane was damaged. Several weeks were required to make repairs.

In the meantime, de Seversky had seen his competitors’ entries. Both were single place pursuits with retractable landing gear. He realized that his -2XP was completely outclassed.

The Curtiss-Wright Model 75, X17Y. This prototype would be developed into the P-36 Hawk and later, the P-40 Warhawk. (Ray Wagner Collection, San Diego Air & Space Museum Archives, Catalog #: 16_008032)
The Northrop 3A, photographed 30 July 1935, the day it disappeared off the coast of southern California. No trace was found of it or the pilot, 1st Lieutenant Arthur Henry Skaer, Jr. (Ray Wagner Collection, San Diego Air & Space Museum Archives, Catalog #: 16_005638)

The prototype was once again rebuilt. It was now also a single-place airplane with retractable landing gear. Designated SEV-1XP, X18Y was initially powered by a 1,823.129 cubic inch displacement (29.876 liters) 860-horsepower Wright Cyclone, which was quickly upgraded to a Wright GR-1820G4. This was also a single-row, nine-cylinder radial engine. The G4 had a compression ratio of 6.45:1 and required 87-octane aviation gasoline. It was rated at 810 horsepower at 2,100 r.p.m., and 1,000 horsepower at 2,200 r.p.m.for takeoff. The engine was 47¾ inches (1.213 meters) long, 54¼ inches in diameter, and weighed 1,210 pounds (549 kilograms). The SEV-1XP had a fuel capacity of 160 U.S. gallons (606 liters) and carried 15 gallons (57 liters) of lubricating oil.

Seversky SEV-1XP X18Y. (Seversky Aircraft Company)
Seversky SEV-1XP X18Y (Ray Wagner Collection, San Diego Air & Space Museum Archives, Catalog #: 16_006757)

In April 1936, X18Y’s engine was once again upgraded, this time to a Wright GR-1820G5, s/n 23233.

Major Alexander de Seversky with SEV-1XP X18Y. (Ray Wagner Collection, San Diego Air & Space Museum Archives, Catalog #16_006759)

Another engine change came in January 1937. The Wright Cyclone was replaced by a Pratt & Whitney Twin Wasp R-1830-13, s/n 312. With the Twin Wasp, NR18Y’s designation was changed to SEV-S1. (Department of Commerce records continued to refer to it as SEV-1XP.) The -13 was a supercharged, two row, fourteen cylinder radial engine with a compression ratio of 6.7:1, requiring 91/93-octane aviation gasoline. It had a normal power rating of 900 horsepower at 2,550 r.p.m., to an altitude of 10,000 feet (3,048 meters), and 1,050 horsepower at 2,700 r,p,m for takeoff. The airplane retained the same Hamilton Standard propeller that had been used with the R-1820G5, which it drove through a 3:2 gear reduction. The R-1830-13 was 48.06 inches (1.221 meters) long, 59.25 inches (1.505 meters) in diameter, and weighed 1,370 pounds (621 kilograms).

In August 1937, the R-1830-13 was replaced by a R-1830 SB-G, s/n 112. Again, the same propeller was used. The SB-G had a normal rating of 900 horsepower at  2,450 r.p.m., to 6,500 feet (1,981 meters), and 1,000 horsepower at 2,600 r.p.m. for takeoff. 87-octane fuel was required. The SB-G had the same gear reduction ratio as the -13. It was 48.00 inches (1.219 meters) long, 55.48 inches (1.409 meters) in diameter, and weighed 1,284 pounds (582 kilograms).

On 30 August 1937, the Seversky SEV-1XP was issued a restricted registration, R18Y. As it was then configured, it had an actual empty weight of 4,390 pounds (1,991 kilograms) and gross weight of 6,290 pounds (2,853 kilograms).

Frank Sinclair, Seversky’s chief test pilot, flew R18Y in the 1937 National Air Races, held at Columbus, Ohio. Sinclair’s race number, 63, was painted on the vertical fin. On 4 September, he finished the Bendix Trophy Race from Burbank, California, to Columbus, in fourth place with a time of 11 hours, 2 minutes, winning a $2,000 prize. (Jackie Cochran flew a Beech Staggerwing in the Bendix, beating Sinclair and R18Y by 33 minutes.) Two days later, 6 September, Sinclair placed fourth in the Thompson Trophy pylon race. The Seversky averaged 252.360 miles per hour (406.134 kilometers per hour).

 The Seversky's passenger compartment was accessed through a hatch on the right side of the fuselage. (San Diego Air and Space Museum Archives) Jackie Cochran in the cockpit of the Seversky SEV-2S Executive, NR18Y. Note the passenger windows below and behind the cockpit. (San Diego Air and Space Museum Archives)
The Seversky’s passenger compartment was accessed through a hatch on the right side of the fuselage. (San Diego Air and Space Museum Archives)

On 27 October 1937, the Seversky’s registration reverted to X18Y.

Following an accident at Miami, 13 December 1937, the Department of Commerce suspended X18Y’s registration, noting “AIRCRAFT NOT APPROVED FOR RELICENSING”

It is believed that the prototype was scrapped.

¹ At that time, experimental and restricted category aircraft were prohibited from displaying the letter “N” at the beginning of their registration mark.

© 2020, Bryan R. Swopes

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2 December 1993, 09:27:00 UTC, T minus Zero

Space Shuttle Endeavour (STS-61) lifts off from LC-39B, 09:27:00 UTC, 2 December 1993. (NASA)
Space Shuttle Endeavour (STS-61) lifts off from LC-39B, 09:27:00 UTC, 2 December 1993. (NASA)

2 December 1993, 09:27:00 UTC, T minus Zero: Space Shuttle Endeavour (STS-61) lifted off from Launch Complex 39B at the Kennedy Space Center, Cape Canaveral, Florida. The mission was to service the Hubble Space Telescope in Earth orbit. This was Endeavour‘s fifth flight.

The flight crew were Mission Commander Colonel Richard O. Covey, United States Air Force, on his fourth space flight, with shuttle pilot Captain Kenneth D. Bowersox, U.S. Navy, on his second flight. Mission Specialist Kathryn C. Thornton, Ph.D., on her third space flight; Professor Claude Nicollier, Captain, Schweizer Luftwaffe, (Swiss Air Force) and European Space Agency, on his second space flight; Jeffrey A. Hoffman, fourth flight, F. Story Musgrave, M.D., fifth space flight; and Thomas D. Akers, third space flight.

Flight crew of Space Shuttle Endeavour (STS-61). Seated, left to right: Kenneth D. Bowersox, Kathryn C. Thornton, F. Story Musgrave, and Claude Nicollier, ESA. Rear: Richard O. Covey, Jeffrey A. Hoffman, and Thomas D. Akers. (NASA)
Flight crew of Space Shuttle Endeavour (STS-61). Seated, left to right: CAPT Kenneth D. Bowersox, USN; Kathryn C. Thornton, Ph.D.,  F. Story Musgrave, M.D.; and Professor Claude Nicollier, ESA. Rear: COL Richard O. Covey, USAF, Jeffrey A. Hoffman, and Thomas D. Akers. (NASA)

During this flight there were five EVAs (“space walks”) conducted to service and upgrade Hubble. EVAs 1, 3 and 5 were performed by Musgrave and Hoffman, while 2 and 4 were carried out by Thornton and Akers. The duration of these EVAs were between 6 hours, 36 minutes and 7 hours, 54 minutes.

Endeavour landed at the Shuttle Landing Facility (SLF), Kennedy Space Center, at 05:25:33 UTC, 13 December 1993. The duration of the mission was 10 days, 19 hours, 58 minutes, 37 seconds.

Mission Specialists Jeffrey A. Hoffman (bottom, right of center) and Story Musgrave, on the manipulator arm, with the Hubble Space telescope during EVA 5. (NASA)
Mission Specialists Jeffrey A. Hoffman (bottom, right of center) and Story Musgrave, on the manipulator arm, with the Hubble Space Telescope during EVA 5. (NASA)

© 2016, Bryan R. Swopes

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2 December 1992, 13:24:00 UTC

Space Shuttle Discovery (STS-53) launches from LC-39A, 13:24:00 UTC, 2 December 1992. (NASA)
Space Shuttle Discovery (STS-53) launches from LC-39A, 13:24:00 UTC, 2 December 1992. (NASA)

2 December 1992, 13:24:00 UTC: Space Shuttle Discovery (STS-53) lifted off from Launch Complex 39A at the Kennedy Space Center, Cape Canaveral, Florida, carrying a classified Satellite Data System-2 military communications satellite, USA-89. This satellite also included the Heritage (Radiant Agate) infrared early warning system for detection of ballistic missile launches. Several other satellites and scientific experiments were also carried.

This was Discovery‘s 15th flight.

The Mission Commander was Captain David M. Walker, United States Navy, on his third space flight, with shuttle pilot Colonel Robert D. Cabana, U. S. Marine Corps, on his second. Three Mission Specialists were aboard: Colonel Guion S. Bluford, Ph.D., U.S. Air Force on his fourth and final space flight; Lieutenant Colonel Michael R. Clifford, U.S. Army, first flight; Colonel James S. Voss, U.S. Army, second flight.

Discovery landed at Edwards Air Force Base in the high desert of southern California at 20:43:17 UTC, 9 December 1992. The duration of the mission was 7 days, 7 hours, 19 minutes, 17 seconds.

Space Shuttle Discovery (STS-53) flight crew. Front row, left to right: Guion S. Bluford and James S. Voss. Back row, David M. Walker, Robert D. Cabana and Micael R. Clifford. (NASA)
Space Shuttle Discovery (STS-53) flight crew. Front row, left to right: COL Guion S. Bluford, PH.D., USAF, and COL James S. Voss, USA. Back row, CAPT David M. Walker, USN, COL Robert D. Cabana, USMC, and LCOL Michael R. Clifford, USA. (NASA)

© 2018, Bryan R. Swopes

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