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October 25, 1925

The court martial of Colonel William ("Billy") Mitchell, Air Service, United States Army, began at Washington, D.C. For his criticism of the U.S. Navy's leadership in regard to a number of deadly aviation accidents, he was charged with eight counts of insubordination.

(Mitchell had been returned to his permanent rank of colonel after completing his term as Assistant Chief of the Air Service, during which he retained the temporary rank of brigadier general that he had held during World War I.)

Billy Mitchell had been the senior American air officer in France during World War I. He was a determined advocate for the advancement of military air power and encouraged his officers to compete in air races and attempt to set aviation records to raise the Air Service' public profile. He gained great notoriety when he bombed and sank several captured German warships to demonstrate the effectiveness of airplanes against ships.

His outspoken advocacy resulted in the famous Court Martial of Billy Mitchell, in which a military court consisting of twelve senior Army officers found Mitchell guilty of insubordination. He was reduced in rank and suspended for five years without pay.

Major General Douglas MacArthur (later, General of the Army, a five-star rank) said that the order to serve on the court was, ". . . one of the most distasteful orders I ever received."
Mitchell resigned from the Army and continued to advocate for air power. He died in 1936.

After his death, President Franklin D. Roosevelt elevated Billy Mitchell to the rank of Major General on the retired officers list. The North American Aviation B-25 twin-engine medium bomber was named "Mitchell" in recognition of General Mitchell's efforts to build up the military air capabilities of the United States.
October 25, 2020 - This Day in Aviation

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Colonel William Mitchell during the 1925 court martial. (U.S. Air Force)

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Brigadier General William Mitchell. (University of Wisconsin, Milwaukee/NavSource)
 
October 25, 1923

First Lieutenant Lowell Herbert Smith and First Lieutenant John P. Richter, Air Service, United States Army, flew a DH-4B from Sumas, Washington, to Tijuana, Mexico, non-stop.
The 1,280 mile (2,060 kilometer) flight was made possible by two air-to-air refuelings from tanker airplanes pre-positioned over Eugene, Oregon, and Sacramento, California. The DH-4B tanker over Eugene was flown by First Lieutenants Virgil Hine and Frank W. Siefert. The Sacramento tanker was flown by Captain Robert J. Erwin and First Lieutenant Oliver R. McNeel. At both locations, Smith and Richter made two refueling contacts before proceeding on their route.

On arrival over Mexico, they circled the Tijuana Customs House, then landed at Rockwell Field, San Diego.

The flight took approximately 12 hours.
October 25, 2020 - This Day in Aviation

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First Lieutenant Lowell H. Smith and First Lieutenant John Paul Richter, Air Service, United States Army. (U.S. Air Force)

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On 27 June 1923, Captain Smith and Lieutenant Richter stayed aloft over Rockwell Field, (now, NAS North Island) at San Diego, California, with multiple refuelings. This photograph shows the DH-4B tanker, A.S. 23-467, and receiver on that endurance flight. (U.S. Air Force)

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DH-4B A.S. 23-467 (top right) trails a refueling hose for Smith and Richter's DH-4B near Rockwell Field, San Diego, California, 23 June 1923. (U.S. Air Force)
 
28 October 1936

James A. Jimmy Mollison (The "Flying Scotsman") begins a record flight from New York to London. Flying Bellanca 28-90 The Dorothy, Mollison stopped for a weather delay at Harbour Grace, Newfoundland, then continued to London the next day. His total flight time was only 13 hours and 17 minutes. (In 1937 Mollison sold The Dorothy to the Spanish Republicans at the height of the Spanish Civil War; the aircraft was never delivered, apparently diverted to China.)

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28 October 1937

Givind P. Nair begins his planned flight from Croyden to New York via France, North Africa, Brazil, and the Caribbean. Nair had spent five months in jail for passing bad checks and planned his flight to redeem his name and celebrate his Indian heritage. Still, he had insufficient training for a flight of this complexity, and several individuals were attempting to have his license revoked, noting his extreme lack of experience. Instead, Nair boarded his Miles M2S Hawk Major Spirit of India (G-ADLH) and took off heading west; he soon corrected the mistake and turned toward the English Channel. Two hours later Nair was dead having crashed some 30 miles over the French border.

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October 26, 1962

The United States Air Force received the 116th and last Convair B-58 Hustler, B-58A-20-CF 61-2080. It was assigned to the 305th Bombardment Wing at Bunker Hill Air Force Base, Indiana. After just over seven years in service, this airplane was retired to The Boneyard at Davis-Monthan Air Force Base, Tucson, Arizona, 6 January 1970. It is on display at the Pima Air & Space Museum, nearby.

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.
October 26, 2020 - This Day in Aviation

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The very last Convair B-58 Hustler, with company personnel, 26 October 1962. (University of North Texas Libraries)
 
October 26, 1962

The very last Boeing B-52 Stratofortress was delivered to the United States Air Force. B-52H-175-BW 61-0040, which was rolled out at Wichita, Kansas, 22 June 1962, was the 744th B-52 built by Boeing at its Seattle and Wichita plants.

58 years after roll-out, 61-0040 is still in service with the United States Air Force, assigned to the 23rd Bomb Squadron, 5th Bomb Wing at Minot Air Force Base, North Dakota.
October 26, 2020 - This Day in Aviation

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The last of 744 Boeing B-52 Stratofortress bombers, B-52H-175-BW, 61-0040, is rolled out at the Boeing plant at Wichita, Kansas. (Boeing)

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Boeing B-52H-175-BW Stratofortress 61-0040 in SIOP camouflage, assigned to 2nd Air Force, circa 1975. (U.S. Air Force)

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Boeing B-52H-175-BW Stratofortress 61-0040 parked at Anderson Air Force Base, Guam. (U.S. Air Force)

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The very last B-52 Stratofortress built, B-52H-175-BW 61-0040, on takeoff at Minot Air Force Base. (U.S. Air Force)
 
October 26, 1958

Pan American World Airways opened the "Jet Age" with the first commercial flight of an American jet airliner. Pan Am's Boeing 707-121 Clipper America, N711PA, departed New York Idlewild (IDL) on an 8 hour, 41 minute flight to Paris Le Bourget (LBG), with a fuel stop at Gander, Newfoundland (YQX). (The actual flight time was 7 hours.) The distance was 3,634 miles (5,848 kilometers). Aboard were 111 passengers and 11 crewmembers.

Boeing delivered N711PA to Pan American on 17 October 1958. The airliner was named Clipper America, but was later renamed Clipper Mayflower. It was leased to Avianca (Aerovías Nacionales de Colombia S.A.) from 1960 to 1962. In April 1965 the 707 was upgraded to the –121B standard. This included a change from the turbojet engines to quieter, more powerful and efficient Pratt and Whitney JT3D-1 turbofans, producing 17,000 pounds of thrust. The wings were modified to incorporate changes introduced with the Boeing 720, and a longer tailplane installed. Pan Ayer of Panama purchased Clipper Mayflower 21 February 1975. It was later leased to Türk Hava Yolları, the Turkish national airline, and went on to serve with Air Asia Company Limited (an Air America aircraft service unit) and E-Systems. After 26 years of service, in August 1984 Clipper America was scrapped at Taipei.
October 26, 2020 - This Day in Aviation

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Pan American World Airways' Boeing 707-121, N711PA, Clipper America, at Idlewild Airport, New York, 26 October 1958. (Pan American World Airways)
 
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October 26, 1944

At approximately 4:00 p.m., Civilian Pilot Gertrude V. Tompkins took off from Mines Field, California (now Los Angeles International Airport, or simply, LAX) in a newly-manufactured North American Aviation P-51D-15-NA Mustang, serial number 44-15669, on a flight to deliver it to New Jersey where it would be prepared for shipment to England.

"Tommy" Tompkins was scheduled to make an overnight stop at Palm Springs, California. She never arrived.

Due to a series of errors, it was four days before the military recognized that Tompkins was missing. An extensive search was undertaken but was unsuccessful.

Gertrude Tompkins (Mrs. Harry M. Silver) was listed as Missing, Presumed Dead. She was one of 38 WASP pilots who died in service during World War II. She remains the only Women Airforce Service Pilots member still missing.
October 26, 2020 - This Day in Aviation

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Gertrude Vreeland Tompkins, Women Airforce Service Pilots. (U.S. Air Force)

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"Tommy" Tompkins, wearing her A-2 leather flight jacket and a pilot's white silk scarf. The "Fifinella" gremlin insignia was designed by the Walt Disney Company. (U.S. Air Force)
 
October 26, 1940

At Mines Field, Los Angeles, California (now, Los Angeles International Airport), free lance test pilot Vance Breese took the prototype North American Aviation NA-73X, civil registration NX19998, on a five-minute first flight. Later in the day, Breese flew the NA-73X another ten minutes. He would make six more test flights between 26 October and 13 November, totaling approximately 3 hours, 30 minutes of flight time.

With Great Britain at war with Nazi Germany, the Royal Air Force was the primary defender of the island nation. Airplane manufacturers were turning out Hawker Hurricanes and Supermarine Spitfires as rapidly as possible, but they were barely keeping up with combat losses. England needed more fighters. They had taken over an order for Curtiss-Wright Hawk 81-A1 fighters which had been built for France, but which had not been shipped by the time France surrendered. The RAF called these fighters the Tomahawk Mark I (P-40 Warhawk in U.S. service).

NX19998 was substantially damaged on 20 November 1940 when North American's Chief Test Pilot, Paul B. Balfour, unable to make it back to Mines Field after the Allison engine failed, made a forced landing in a plowed field just west of Lincoln Boulevard. The prototype flipped over and landed upside down. Sources differ as to the cause of the engine failure, with some citing carburetor icing and others suggesting that Balfour failed to switch fuel tanks and the engine stopped running due to fuel starvation. Balfour was replaced by Robert C. Chilton and NA-73X was rebuilt.
October 26, 2020 - This Day in Aviation

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North American Aviation NA-73X prototype, left front quarter view. (North American Aviation, Inc.)

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Vance Breese in the cockpit of the NA-73X, NX19998, at Mines Field, preparing for a test flight. (North American Aviation)

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North American Aviation's prototype fighter, NA-73X, NX19998, at Mines Field, Los Angeles, California. (North American Aviation)

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Robert C. Chilton flying the rebuilt NA-73X on an early familiarization flight. (North American Aviation)
 
October 26, 1925

Lieutenant James Harold Doolittle, Air Service, United States Army, won the Coupe d'Aviation Maritime Jacques Schneider (commonly called the Schneider Trophy) when he placed first flying his Curtiss R3C-2 float plane over a 217-mile (349 kilometer) course near Bay Shores on Chesapeake Bay, Maryland.

Doolittle's average speed for the seven laps around the triangular race course was 232.57 miles per hour (374.29 kilometers per hour). The second-place airplane, a Gloster-Napier III flown by Captain Hubert Broad, averaged 199.16 miles per hour (320.52 kilometers per hour).

Doolittle also set two Fédération Aéronautique Internationale (FAI) world records during the race: World Record for Speed Over 100 Kilometers, with an average speed of 377.83 kilometers per hour (234.77 miles per hour);¹ World Record for Speed Over 200 Kilometers, 377.16 kilometers per hour (234.36 miles per hour).² On the following day, Doolittle set a third FAI record: World Record for Speed Over a 3 Kilometer Course, 395.5 kilometers per hour (245.75 miles per hour).
October 26, 2020 - Page 2 of 2 - This Day in Aviation

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Lieutenant James H. Doolittle, Air Service, United States Army, with the Curtiss R3C-2 Schneider Trophy winner, 1925. (U.S. Air Force)

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Lieutenant James H. Doolittle (left) and Lieutenant Cyrus Bettis with the Curtiss R3C-2. (NARA 31758AC)

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First Lieutenant James Harold Doolittle, Air Service, United States Army
 
October 26, 1907

At Issy-les-Moulineaux, France, Henry Farman flew his Voisin-Farman I airplane a distance of approximately 771 meters (2,530 feet) in 52 seconds to win the Coupe d'Aviation Ernest Archdeacon (Ernest Archdeacon Cup) for the longest flight of the year.

The single-place single-engine biplane was built by brothers Charles and Gabriel Voisin, and was very similar to the Voisin-Delagrange I which they had built several months earlier. Henry Farman had requested some slight modifications. He first flew the airplane 30 September 1907

The Voisin-Farman I was 44 feet, 2 inches (13.462 meters) long, with a wingspan of 35 feet, 5 inches (10.795 meters) and weighed 705 pounds (319.8 kilograms) and gross weight of 1,213 pounds (550 kilograms).

The airplane was powered by a steam-cooled, direct-injected, 487.14 cubic-inch-displacement (7.983 liter) Société Antoinette 8V 90° V-8 direct-drive engine producing 53 horsepower at 1,100 r.p.m. The engine turned a two-bladed pusher propeller. It was designed by Léon Levavasseur. The engine was 1.120 meters (3 feet, 8 inches) long, 0.630 meters (2 feet, 1 inch) wide and (0.540 meters (1 foot, 9 inches) high. It weighed 95 kilograms (209 pounds).
October 26, 2020 - Page 2 of 2 - This Day in Aviation

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Henry Farman winning the Archdeacon Cup with his Voisin-Farman I. (Wright Brothers Aeroplane Co.)

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Charles Voisin and Henry Farman, 1907. (Unattributed)
 
October 27, 2015

The first flight of the Sikorsky CH-53K King Stallion Engineering Development Model–1, Bu. No. 169019, at West Palm Beach, Florida. In the cockpit was Stephen McCulley, Chief Experimental Test Pilot for Sikorsky. During the 30 minute flight, the new helicopter demonstrated sideward, rearward and forward flight while remaining in in-ground-effect hover.

The fuselage of the CH-53K King Stallion is 73 feet, 1.5 inches (22.289 meters) long and its width is 9 feet, 10 inches (2.997 meters). The maximum width, across the sponsons, is 17 feet, 6 inches (5.334 meters). The seven-bladed main rotor has a diameter of 79 feet (24.079 meters). The four-blade tail rotor is 20 feet (6.096 meters) in diameter. The tail rotor is tilted 20° to the left. With rotors turning, the helicopter has an overall length of 99 feet (30.175 meters), and height of 28 feet, 4.9 inches (8.659 meters). The helicopter's maximum gross weight is 88,000 pounds (39,916 kilograms).

Power is supplied by three General Electric T408-GE-400 engines which produce 7,500 shaft horsepower, each. The engine has digital electronic controls. The T408 has a 6-stage compressor section (5 axial-flow stages, 1 centrifugal-flow stage) and – stage turbine section (2 high- and 3 low-pressure stages). The engine is 57.5 inches (1.461 meters) long and 27 inches (0.686 meters) in diameters.

At Sea Level with maximum continuous power, the CH-53K cruises at 158 knots (182 miles per hour/293 kilometers per hour). It can hover out of ground effect at Sea Level at its maximum gross weight. The helicopter's service ceiling is 16,000 feet (4,877 meters).

The first production CH-53K was delivered to the U.S. Marine Corps on 16 May 2018, at West Palm Beach, Florida.
October 27, 2020 - This Day in Aviation

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Sikorsky's CH-53K King Stallion Engineering Development Model-1 hovers in ground effect at West Palm Beach, Florida, 27 October 2015. (Sikorsky, a Lockheed Martin Company)
 
October 27, 1961

At 15:06:04 UTC, (10:06 a.m., EST), 3.97 seconds after ignition, the first Saturn C-1 heavy launch vehicle (Saturn I, SA-1) lifted off from Launch Complex 34 at Cape Canaveral, Florida. This was a test of the first stage, only. The rocket's upper stages were dummies.

At about 109 seconds after liftoff, four inner engines of the first stage shut down, followed 6 seconds later by the outer four. The rocket continued on a ballistic trajectory.

The Saturn C-1 was bigger than any rocket built up to that time. Early versions of the three-stage rocket were 162 feet, 8.90 inches (49.6037meters) tall, with a maximum diameter of 21 feet, 5.0 inches (6.528 meters). The all-up weight was 1,124,000 pounds (509,838 kilograms).

SA-1 reached a maximum speed of 3,607 miles per hour (5,805 kilometers per hour), and a peak altitude of 84.813 miles (136.493 kilometers). It impacted in the Atlantic Ocean 214.727 miles (345.570 kilometers) down range. The duration of the flight was 15 minutes, 0 seconds. The flight was considered to be nearly flawless.
https://www.thisdayinaviation.com/2020/10/27/[/quote]

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The first Saturn C-1 three-stage heavy-lift rocket, SA-1, on the launch pad at Cape Canaveral, 27 October 1961. The gantry tower has been pulled back. (NASA)

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At Launch Complex 34, the eight Rocketdyne H-1 engines of Saturn C-1 SA-1 are firing. The hold down arms have not yet released. 15:06:04 UTC, 27 October 1961. (NASA)

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Saturn SA-1 accelerates after liftoff, 27 October 1961. (NASA 0102626)
 
October 27, 1954

Between August 1954 and May 1956, Joseph A. Walker, the National Advisory Committee for Aeronautics' chief project test pilot for the Douglas X-3 supersonic research aircraft, made twenty research flights in the "Stiletto."

On the tenth flight, 27 October, Walker took the X-3 to an altitude of 30,000 feet (9,144 meters). With the rudder centered, he put the X-3 into abrupt left aileron rolls, first at 0.92 Mach and then at Mach 1.05. Both times, the aircraft violently yawed to the right and then pitched down. Walker was able to recover before the X-3 was completely out of control.

This was a new and little understood condition called inertial roll coupling. It was a result of the aircraft's mass being concentrated within its fuselage, the gyroscopic effect of the turbojet engines and the inability of the wings and control surfaces to stabilize the airplane and overcome its rolling tendency. (Just two weeks earlier, North American Aviation's Chief Test Pilot George S. Welch had been killed when the F-100A Super Sabre that he was testing also encountered inertial roll coupling and disintegrated.)

A post-flight inspection found that the X-3 had reached its maximum design load. The airplane was grounded for the next 11 months.

Joe Walker resumed flight testing the X-3 in 1955. Its final flight was 23 May 1956. After the flight test program came to an end, the X-3 was turned over to the National Museum of the United States Air Force, Wright-Patterson Air Force Base, Ohio.
October 27, 2020 - This Day in Aviation

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The Douglas X-3 during NACA flight testing, 1954-1956. (LIFE Magazine via Jet Pilot Overseas)

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NACA test pilot Joe Walker with the Douglas X-3. (LIFE Magazine via Jet Pilot Overseas)
 
October 25-27, 1931

At 5:17:30 p.m., Pacific Standard Time, Saturday afternoon (01:17:30, Sunday, 26 October, G.M.T.), Ruth Rowland Nichols took off from Oakland Municipal Airport, in California, and headed east. He destination was New York City, New York, non-stop.

Miss Nichols was flying a 1928 Lockheed Model 5 Vega Special, serial number 619, registered NR496M, and owned by Powell Crosley, Jr. The airplane had just been repaired following a landing accident three months earlier, in which she had suffered five fractured vertabrae. [TDiA 22 June 1931] The Vega was white with gold wings. A list of records which had been previously set by Miss Nichols was lettered in gold on the forward fuselage.

At 7:35 p.m., Mountain Standard Time (02:35, Sunday, G.M.T.) the Vega was sighted over Reno, Nevada. It was over Salt Lake City, Utah, at 11:00, local time (06:00 G.M.T.), and Cheyenne, Wyoming, at 1:07 a.m., Sunday, Central Standard Time (07:07 G.M.T.).

Ruth Nichols and her Lockheed landed at Bowling Field, Louisville, Kentucky, at 9:40 a.m., Sunday, local time (15:40 G.M.T.). Though well short of her intended destination, she had set a new Fédération Aéronautique Internationale (FAI) World Record for Distance in a Straight Line Without Landing of 3 182,65 kilometers (1,977.607 statute miles). This broke the record set 29 June 1931 by Mlle Maryse Bastie during a flight from Paris, France, to Udino, Russia.
October 27, 2020 - This Day in Aviation

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Ruth Rowland Nichols (Fédération Aéronautique Internationale 12430–1)

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Ruth Rowland Nichols' Lockheed Model 5 Vega Special, NR496M. (Fédération Aéronautique Internationale 12340–2)
 
October 28, 1957

The first production Boeing 707 jet-powered commercial airliner, serial number 17586 (Line Number 1), was rolled out at the Boeing aircraft assembly plant at Renton, Washington. The Model 707 was developed from the earlier Model 367–80, the "Dash Eighty," prototype for an air-refueling tanker which would become the KC-135 Stratotanker.

17586 was a Model 707-121. The new airliner had been sold to Pan American World Airways, the launch customer, as part of an order for twenty 707s in October 1955. The Federal Aviation Agency (FAA) assigned N708PA as its registration mark.

N708PA made its first flight 20 December 1957 with Boeing's Chief of Flight Test, Alvin M. ("Tex") Johnston. The airplane was initially used for flight and certification testing. Once this was completed, the new jet airliner was prepared for commercial service and delivered to Pan American at San Francisco International Airport (SFO), 30 November 1958. It was named Clipper Constitution

In February 1965, the airliner was upgraded to 707-121B standards, which replaced the original turbojet engines with quieter, more efficient Pratt & Whitney Turbo Wasp JT3D-1 turbofan engines which produced 17,000 pounds of thrust. The wing inboard leading edges were modified to the design of the Model 720 and there was a longer horizontal tail plane.

Clipper Constitution flew for Pan Am for nearly 8 years, until 17 September 1965, when it crashed into Chances Peak, a 3,002 foot (915 meters) active stratovolcano on the Caribbean island of Montserrat. The point impact was 242 feet (74 meters) below the summit. All aboard, a crew of 9 and 21 passengers, were killed.
October 28, 2020 - This Day in Aviation


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The first production Boeing 707 after being rolled out of the final assembly plant at Renton, Washington, 28 October 1957. (Boeing)

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The first production Boeing 707 after roll out, 28 October 1957. (Boeing)

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Boeing 707-121 N708PA, photographed during its second flight, 20 December 1957. (Boeing)
 
October 28, 1952

The prototype Douglas XA3D-1 Skywarrior, Bu. No. 125412, made its first flight at Edwards Air Force Base, California. Douglas test pilot George R. Jansen was in the cockpit. The Skywarrior was a carrier-based, twin-engine, swept-wing strategic bomber, designed to carry a 12,000 pound (5,443 kilogram) bomb load. The prototype was equipped with two Westinghouse XJ40-WE-12 turbojet engines producing 7,000 pounds of thrust (31.138 kilonewtons), each.

Designed to be launched from an aircraft carrier, fly 2,000 miles (3,219 kilometers), deliver a 3.8 megaton Mark 15 thermonuclear bomb on target, then return to the carrier, the Skywarrior was a considerable challenge for its designers. It was operated by a three man crew: pilot, navigator/bombardier and gunner.
October 28, 2020 - This Day in Aviation

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Douglas XA3D-1 Skywarrior, Bu. No. 125412. (U.S. Navy)

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Douglas XA3D-1 Bu. No. 125412 during its first flight, 28 October 1952. (U.S. Navy))

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Douglas XA3D-1 Bu. No. 125412. (U.S. Navy)

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George R. Jansen, 1921–1991. (Photograph courtesy of Neil Corbett, Test & Research Pilots, Flight Test Engineers)

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Major George R. Jansen, U.S. Army Air Forces. (U.S. Air Force)
 

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October 28, 1936

Flying a four-engine Tupolev TB-3 bomber near Tchelcovo, U.S.S.R., Юмашев Андрей Борисович (Andrey Borisovich Yumashev, A.B. Yumashev, A. Youmachev, André Youmacheff), with a crewman named Kalachnikov, set a Fédération Aéronautique Internationale (FAI) World Record for Altitude With a 5,000 Kilogram (11,023 pounds) Payload, reaching 8,980 meters (29,462 feet). This was the fourth world altitude record set by Yumashev with the TB-3.
October 28, 2020 - This Day in Aviation

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Tupolev ANT-6-4AM-34RVN, No. 209, "Aviaarktika," modified for an August 1937 polar expedition. The airplane and its six-man crew disappeared.

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Major General Andrey Borisovich Yumashev, Soviet Air Force (1902–1988)
 
October 29, 1998

Senator John Herschel Glenn, Jr., the first American to orbit the Earth, returned to space as a member of the Discovery STS-95 crew. At the age of 77, John Glenn was the oldest human to fly into space.

The STS-95 mission elapsed time was 8 days, 21 hours, 44 minutes, 2 seconds. Combined with Senator Glenn's orbital flight of 20 February 1961 aboard the Mercury space vehicle, Friendship 7, his total space mission time is 9 days, 2 hours, 39 minutes, 49 seconds. He has completed 137 orbits of the Earth.
October 29, 2020 - This Day in Aviation

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Senator John H. Glenn, Jr., 1998. (NASA)

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Space Shuttle Discovery (STS-95) launches at Launch Complex 39B, Kennedy Space Center, Cape Canaveral, Florida, 2:19:34 p.m., EST, 29 October 1998. This was Discovery's 25th flight. (NASA)
 
October 29, 1953

Lieutenant Colonel Frank Kendall ("Pete") Everest, United States Air Force, flew a new prototype air superiority fighter, North American Aviation's YF-100A Super Sabre, serial number 52-5754, over the 3 kilometer and 15 kilometer courses at the Salton Sea, in the Colorado Desert of southeastern California.

Flying four runs over the short course, Everest averaged 757.75 miles per hour (1,219.48 kilometers per hour). Although this was 4.80 miles per hour (7.725 kilometers per hour) faster than the FAI record set three weeks earlier by Lieutenant Commander James B. Verdin, U.S. Navy, with a Douglas XA4D-1 Skyray, it was not fast enough to establish a new world record under FAI rules, which required that a new record exceed the previous record by 1%.

Next came four speed runs over the 15/25 kilometer course. All runs were made with the Super Sabre flying within 100 feet (30 meters) of the ground. The official Fédération Aéronautique Internationale (FAI) average speed was 1,215.298 kilometers per hour (755.151 miles per hour)—0.99 Mach.

The course at the Salton Sea was used because its surface lies 235 feet (72 meters) below Sea Level. The denser air causes undesired transonic effects to occur at lower speeds, but the higher air temperatures help to delay them, allowing the pilot a greater margin of control during the speed record runs.
October 29, 2020 - This Day in Aviation

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North American Aviation YF-100A Super Sabre 52-5754 during a speed record attempt at the Salton Sea, 29 October 1953. (San Diego Air and Space Museum Archives)

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Lieutenant Colonel Frank K. Everest and the North American Aviation YF-100A Super Sabre, 52-5754, 29 October 1953. (San Diego Air and Space Museum Archives)

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Lieutenant Colonel Frank Kendall Everest, Jr., United States Air Force.

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Pete Everest with his Curtiss-Wright P-40 Warhawk, North Africa, circa 1943.
 

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