Yearly Archives: 2025

2 May 1952

B.O.A.C. de Havilland DH.106 Comet 1, G-ALYP, departs London, 2 May 1952. (British Airways)

2 May 1952: At 15:12 GMT, the British Overseas Airways Corporation’s de Havilland DH.106 Comet 1, G-ALYP, departed London for Johannesburg, South Africa, with 36 passengers and a crew of 7. The approximate 7,000 mile (11,265 kilometer) flight was expected to take 23 hours, 40 minutes with intermediate stops at Rome, Beirut, Khartoum, Entebbe and Livingstone. There were crew changes at Beirut and Khartoum. BOAC’s chairman, Sir Miles Thomas, joined the flight at Livingstone for the final stage.

G-AYLP arrived at Johannesburg at 14:38 GMT, 3 May, fourteen minutes ahead of schedule. This was the very first regularly-scheduled revenue passenger flight for a jet airliner.

The AAP reported on the Comet’s arrival at Entebbe:

Record-shooting Comet nears end of long jet flight

KHARTOUM, Sat.: The Comet airliner opening the first jet passenger service is now hurtling across Africa at nearly 500 m.p.h. on the last stages of the London-Johannesburg flight.

The Comet arrived at Entebbe, Uganda at 3.30 p.m. Adelaide time, exactly on schedule.

The eight-miles-a-minute jet will stop next at Livingstone.

It is now on the fifth and second-last leg of its southward dash.

At Beirut the first crew, skippered by Capt. A.M. Majendie, handed the plane over to a fresh crew with Capt. J.T. Marsden as skipper.

A third crew, commanded by Capt. R.C. Alabaster, took over at Khartoum.

Official air mileages on the plane’s route are:

London–Rome 930
Rome–Beirut, 1,385.
Beirut–Khartoum, 1,330.
Khartoum–Entebbe, 1,090.
Entebbe–Livingstone, 1,320.
Livingstone–Johannesburg, 608.
Total, 6,663 miles.

Reached 525 m.p.h.

Between Rome and Beirut, the plane established a new world record by reaching 525 m.p.h, beating its own previous trial performances.

The plane is carrying 36 fare-paying passengers and a crew of five.

During the flight, passengers relaxed luxuriously in the dove-grey and dark-blue pressurized cabin as the Comet, hurtling along at more than 230 yards a second, created an impression of motionless suspension.

One of the two women passengers sketched out during the flight the first music ever written in a jetliner.

“It is the ‘Comet Prelude,’ ” explained Miss Avril Coleridge-Taylor, who is the daughter of Samuel Coleridge-Taylor, famous composer, who died in 1912.

Miss Taylor, who is in her early forties, is to conduct a symphony concert in South Africa.

The first man to book on the Comet, Mr. Albert Henshaw, 63, of Lincolnshire, has been flying since World War I.

“I’ve been in them all and I’ve never seen anything like this,” he said.

“This may be as near to heaven as I’ll ever get—and it’s well worth it.”

Mother better

Another passenger is Steven Naude, a young South African who was given a mercy seat in the Comet to Johannesburg when he heard that his mother was lying dangerously ill in Bethlehem, Northwestern Free State.

The latest message from Cape Town reports a slight improvement. —AAP

The Mail, Adelaide, South Australia, Saturday, 3 May 1952, Page 2, Columns 2–4.

A BOAC de Havilland Comet jet airliner, en route to Johannesburg from London, breaks its journey at Entebbe Airport, Uganda, 1952. (Ministry of Information official photographer)
“A BOAC de Havilland Comet jet airliner, en route to Johannesburg from London, breaks its journey at Entebbe Airport, Uganda, 1952.” (Ministry of Information official photographer)

The de Havilland Comet was the first commercial jet airliner and its introduction had revolutionized the industry.

DH.106 Comet 1 G-AYLP (Works No. 06003) was the first production airplane and was very similar to the two prototypes. It can be visually identified by its square passenger windows.

The Comet I was flown by a pilot, co-pilot, flight engineer and navigator. The airliner could carry up to 44 passengers. (B.O.A.C. configured the airliner with 36 passenger seats.)

The airplane was 93 feet (28.346 meters) long with a wingspan of 115 feet (35.052 meters) and overall height of 27 feet, 10 inches (8.484 meters). The wings were swept 20°, as measured at ¼ chord. The fuselage had a maximum outside diameter of 10 feet, 3 inches (3.124 meters), and 9 feet, 9 inches (2.972 meters) inside. The Comet 1 had an authorised maximum all-up weight of 107,000 pounds (48,534 kilograms).

Cut-away illustration of de Havilland Comet I G-ALYP by artist Laurence Dunn.

The Comet I was powered by four de Havilland Engine Co., Ltd., Ghost 50 Mk.I turbojet engines. The Ghost was a single-shaft centrifugal-flow turbojet with a single-stage compressor, 10 combustion chambers and a single-stage turbine. It was rated at 5,000 pounds of thrust (22.24 kilonewtons) at 10,250 r.p.m. The Ghost 50 had a maximum diameter of 4 feet, 5 inches (1.346 meters), length of 10 feet, 1 inch (3.073 meters) and dry weight of 2,218 pounds (1,006 kilograms). When first placed in service, the engines required a combustion chamber inspection at 125 hour intervals. A complete overhaul was required every 375 hours. The Ghost was the first turbojet certified for civil airliner operations.

A de Havilland Engine Company advertisement in the Illustrated London News, circa 1950.

The Comet I had a maximum cruising speed of 490 miles per hour (789 kilometers per hour), True Air Speed, and operating altitude of 35,000 to 40,000 feet (10,668–12,192 meters). The airliner’s fuel capacity was 6,050 Imperial gallons (27,504 liters, or 7,266 U.S. gallons) giving a practical stage length of 2,140 miles (3,444 kilometers). The maximum range was 3,860 miles (6,212 kilometers).

Twelve DH.106 Comet 1 airliners were built.

G-ALYP suffered catastrophic explosive decompression while flying over the Mediterranean Sea, 10 January 1954. This was the first of two accidents caused by metal fatigue in the fuselage as a result of expansion and contraction during pressurization cycles. The DH.106 Comet I fleet was grounded and the aircraft were removed from service.

De Havilland Comet 1 G-AYLP (www.crash-aerien.news)
De Havilland Comet 1 G-AYLP (www.crash-aerien.news)

© 2019, Bryan R. Swopes

2 May 1925

Douglas C-1 in flight. (U.S. Air Force)
Douglas C-1 A.S. 25-433 in flight, 28 April 1926. (U.S. Air Force)

2 May 1925: At Santa Monica, California, the Douglas Aircraft Company C-1, A.S. 25-425, made its first flight. The new aircraft was requested by the U.S. Army Air Service to fill the role of a cargo transport. The single-engine, two-bay biplane had a crew of two in an open cockpit and could carry 6–8 passengers in an enclosed compartment, or 2,500 pounds (1,134 kilograms) of cargo. A trapdoor in the floor allowed heavy cargo to be lifted directly into the airplane.

Douglas C-1 No. 79 (S/N 25-433) in flight, on April 28, 1926. (u.S. Air Force photo)
Right profile of Douglas C-1 No. 79, A.S. 25-433, in flight, 28 April 1926. In this image, the passenger compartment windows are visible. (U.S. Air Force)

The Douglas C-1 was 35 feet, 4 inches (10.770 meters) long with a wingspan of 56 feet, 7 inches (17.247 meters) and height of 14 feet (4.267 meters). The transport’s empty weight was 3,836 pounds (1,740 kilograms) and its loaded weight was 6,443 pounds (2,922 kilograms).

The C-1 was powered by a water-cooled, normally-aspirated, 1,649.336-cubic-inch-displacement (27.028 liter) Liberty L-12 single overhead cam (SOHC) 45° V-12 engine with a compression ratio of 5.4:1. The Liberty produced 408 horsepower at 1,800 r.p.m. The L-12 as a right-hand tractor, direct-drive engine. It turned turned a two-bladed fixed-pitch wooden propeller. The Liberty 12 was 5 feet, 7.375 inches (1.711 meters) long, 2 feet, 3.0 inches (0.686 meters) wide, and 3 feet, 5.5 inches (1.054 meters) high. It weighed 844 pounds (383 kilograms).

Douglas C-1 A.S. 25-423 at McCook Field as P394. (U.S. Air Force)
Douglas C-1 A.S. 25-425 at McCook Field Dayton, Ohio, as P394. (U.S. Air Force)

The Liberty L12 aircraft engine was designed by Jesse G. Vincent of the Packard Motor Car Company and Elbert J. Hall of the Hall-Scott Motor Company. This engine was produced by Ford Motor Company, as well as the Buick and Cadillac Divisions of General Motors, The Lincoln Motor Company (which was formed by Henry Leland, the former manager of Cadillac, specifically to manufacture these aircraft engines), Marmon Motor Car Company and Packard. Hall-Scott was too small to produce engines in the numbers required.

Douglas C-1 A.S. 25-425, the first C-1. (U.S. Air Force)
Douglas C-1 A.S. 25-425, the first C-1. (U.S. Air Force)

The C-1 had a maximum speed of 116 miles per hour (187 kilometers per hour), though its cruising speed was 85 miles per hour (137 kilometers per hour). The service ceiling was 14,850 feet (4,526 meters) and its range was 385 miles (620 kilometers)

In addition to a passenger and cargo transport, the Douglas C-1 was used experimentally as a medical evacuation aircraft and as an aerial refueling tanker. Nine C-1 and C-1A transports were built, and seventeen slightly larger C-1Cs.

The C-1 was the first U.S. Air Force airplane to use the designation “C-” to indicate a cargo transport. That designator is still in use today.

Douglas C-1 transport, serial number A.S. 25-431, 1 October 1925. (U.S. Air Force)
Douglas C-1 transport, serial number A.S. 25-431, 1 October 1925. This airplane crashed on takeoff 150 yards (137 meters) west of Selfridge Field, Michigan, 16 April 1926. It was damaged beyond repair and written off. (U.S. Air Force)

© 2018, Bryan R. Swopes

1 May 1965

Lockheed YF-12A 60-6936, flies test mission near Edwards Air Force Base, Califrnia. (U.S. Air Force)
Lockheed YF-12A 60-6936, flies test mission near Edwards Air Force Base, Califrnia. (U.S. Air Force)

1 May 1965: Lockheed YF-12A 60-6936 established five Fédération Aéronautique Internationale (FAI) World Records for Speed: 3,351.507 kilometers per hour (2,070.102 m.p.h.) over a 15/25 Kilometer Straight Course; 2,644.22 kilometers per hour (1,643.04 miles per hour) over a 500 Kilometer Closed Circuit; and 2,718.01 kilometers per hour (1,688.89 miles per hour) over a 1,000 Kilometer Closed Circuit. On the same day, 6936 set an FAI World Record for Altitude in Horizontal Flight of 24,463 meters (80,259 feet).

The World Record-setting flight crews, from left to right, Captain James P. Cooney, Major Walter F. Daniel, Colonel Robert L. Stephens, Lieutenant Colonel Daniel Andre and Major Neil T. Warner. (U.S. Air Force)
The World Record-setting flight crews, from left to right, Captain James P. Cooney, Major Walter F. Daniel, Colonel Robert L. Stephens, Lieutenant Colonel Daniel Andre and Major Neil T. Warner. (U.S. Air Force)

The YF-12A interceptor prototype was flown by pilots Major Walter F. Daniel and Colonel Robert L. Stephens, with fire control officers Lieutenant Colonel Daniel Andre, Major Neil T. Warner and Captain James P. Cooney. Colonel Stephens and Lieutenant Colonel Andre were awarded the Thompson Trophy for the “J” Division, 1965. Their trophy is in the collection of the National Museum of the United States Air Force.

Lockheed YF-12A 60-6936 during speed record trials. The white cross on the aircraft's belly was to assist timers and observers. (U.S. Air Force)
Lockheed YF-12A 60-6936 taking off from Edwards Air Force Base during the speed record trials, 1 May 1965. The white cross on the aircraft’s belly was to assist timers and observers. (U.S. Air Force)

FAI Record File Num #3972 [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: 2 718.01 km/h
Date: 1965-05-01
Course/Location: Edwards AFB, CA (USA)
Claimant Walter F. Daniel (USA)
Aeroplane: Lockheed YF-12A (06936)
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

FAI Record File Num #3973 [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: 2 718.01 km/h
Date: 1965-05-01
Course/Location: Edwards AFB, CA (USA)
Claimant Walter F. Daniel (USA)
Aeroplane: Lockheed YF-12A (06936)
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

FAI Record File Num #8534 [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: Altitude in horizontal flight
Performance: 24 463 m
Date: 1965-05-01
Course/Location: Edwards AFB, CA (USA)
Claimant R.L. Stephens (USA)
Aeroplane: Lockheed YF-12A
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

FAI Record File Num #8855 [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 500 km without payload
Performance: 2 644.22 km/h
Date: 1965-05-01
Course/Location: Edwards AFB, CA (USA)
Claimant Walter F. Daniel (USA)
Aeroplane: Lockheed YF-12A
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

FAI Record File Num #8926 [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: 2 718.006 km/h
Date: 1965-05-01
Course/Location: Edwards AFB, CA (USA)
Claimant Walter F. Daniel (USA)
Aeroplane: Lockheed YF-12A
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

FAI Record File Num #9059 [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 straight 15/25 km course
Performance: 3 331.507 km/h
Date: 1965-05-01
Course/Location: Edwards AFB, CA (USA)
Claimant R.L. Stephens (USA)
Aeroplane: Lockheed YF-12A
Engines: 2 Pratt & Whitney J-58/JTD11D-20A

World Speed Record holders and Thompson Trophy winners, Colonel Robert F. Stephens and Lieutenant Colonel Daniel Andre. (U.S. Air force)
World Speed Record holders and Thompson Trophy winners, Colonel Robert L. Stephens and Lieutenant Colonel Daniel Andre. (U.S. Air Force)

60-6936 was one of three Mach 3 YF-12A interceptors designed and built by Kelly Johnson’s “Skunk Works”. It was developed from the CIA’s Top Secret A-12 Oxcart reconnaissance airplane. The YF-12A was briefly known as the A-11, which was a cover story to hide the existence of the A-12. Only three were built. The Air Force ordered 93 F-12B interceptors into production as a replacement for the Convair F-106A Delta Dart, but for three straight years Secretary of Defense Robert S. McNamara refused to release the funds that had been appropriated. In 1968, the F-12B project was cancelled.

On 24 June 1971, 60-6936 suffered an in-flight fire while on approach to Edwards Air Force Base. The crew successfully ejected and the airplane crashed a few miles to the north of EDW. It was totally destroyed.

The only surviving example of a YF-12A, 60-6935, is in the collection of the National Museum of the United States Air Force.

The 1965 Thompson Trophy on display at the National Museum of the United States Air Force. (U.S. Air Force)
The 1965 Thompson Trophy on display at the National Museum of the United States Air Force. (U.S. Air Force)

© 2016, Bryan R. Swopes

1 May 1963

Jackie Cochran with the Lockheed TF-104G Starfighter, N104L. (FAI)
Jackie Cochran with the Lockheed TF-104G Starfighter, N104L. (FAI)

1 May 1963: At Edwards Air Force Base, California, Jacqueline (“Jackie”) Cochran, Colonel, U.S. Air Force Reserve, established a Fédération Aéronautique Internationale (FAI) World Speed Record when she flew this two-place Lockheed TF-104G Starfighter, FAA registration N104L, named Free World Defender, over a 100-kilometer (62.137-mile) closed circuit at an average speed of 1,937.15 kilometers per hour (1,203.69 miles per hour).¹

Jackie Cochran wrote about flying the 100-kilometer course in her autobiography:

The 100 kilometer closed course was so damn difficult. Imagine an absolutely circular racetrack, about a quarter of a mile wide, on the ground with an inner fence exactly 63 miles long. Now, in your mind’s eye, leave the track and get into the air at 35,000 feet. Fly it without touching the fence in the slightest. It’s tricky because if you get too far away from the inner fence, trying not to touch, you won’t make the speed you need to make the record. And if you get too close, you’ll disqualify yourself.

Eyes are glued to the instrument panel. Ears can hear the voice of the space-positioning officer. You are dealing in fractions of seconds. And your plane isn’t flying in flat position. It’s tipped over to an 80-degree bank to compensate for the circle. That imaginary inner fence may be to your left, but you don’t head your plane left. That’d lose altitude. Instead, you pull the nose up a bit and because the plane is so banked over, you move closer to the fence. You turn.

Jackie Cochran: An Autobiography, by Jacqueline Cochran and Maryann Bucknum Brinley, Bantam Books, New York 1987, Page 314.

She had flown this same F-104 to an earlier speed record at Edwards Air Force Base, 12 April 1963.

N104L was retained by Lockheed for use as a customer demonstrator to various foreign governments. In 1965 Lockheed sold N104L to the Dutch Air Force, where it served as D-5702 until 1980. It next went to the Turkish Air Force until it was retired in 1989.

Lockheed TF-104G Starfighter N104L, World Speed Record holder. (Lockheed)
Lockheed TF-104G Starfighter N104L, World Speed Record holder. (Lockheed)

¹ FAI Record File Number 12390

© 2019, Bryan R. Swopes

1 May 1960

Francis Gary powers flew this Lockheed U-2, 56-6693, "Article 360" over the Soviet Union, 1 October 1960. Right profile illustration courtesy of Tim Bradley. (© 2016, Tim Bradley)
Francis Gary Powers flew this Lockheed U-2C, 56-6693, “Article 360,” over the Soviet Union, 1 October 1960. Right profile illustration courtesy of Tim Bradley. (© 2016, Tim Bradley)
Article 360, the Central Intelligence Agency's Lockheed U-2C,56-6693, as it appeared when flown by Francis gary Powers, 1 May 1960. (Left profile illustration courtesy of Tim Bradley.( © 2016 Tim Bradley)
Article 360, the Central Intelligence Agency’s Lockheed U-2C, 56-6693, as it appeared 1 May 1960. Left profile illustration courtesy of Tim Bradley. (© 2016 Tim Bradley)

During the Cold War, the United States routinely flew reconnaissance missions over Soviet Bloc territory, including over the Soviet Union itself. There have been unconfirmed reports that as many as 40 U.S. aircraft were shot down, and more than 200 airmen killed. Several hundred may have been captured and held as prisoners.

1 May 1960: Near Degtyansk, Sverdlovsk Oblast, Russia, a Central Intelligence Agency/Lockheed U-2C, 56-6693, “Article 360,” flying at approximately 80,000 feet (24,384 meters) on a Top Secret reconnaissance mission, was hit by shrapnel from an exploding Soviet V-750VN (S-75 Desna) surface-to-air missile.

With his airplane damaged and out of control, pilot Francis Gary Powers bailed out and parachuted safely but was immediately captured. A trailing MiG-19 fighter was also shot down by the salvo of anti-aircraft missiles, and its pilot killed.

The trial of Francis Gary Powers, August 1960. Mr. Powers is standing in the prisoner's dock at the right side of the image. (Getty Images/Popperfoto)
The trial of Francis Gary Powers, 17 October 1960. Mr. Powers is standing in the prisoner’s dock at the right side of the image. (Getty Images/Popperfoto)

Gary Powers was interrogated by the KGB (Komitet gosudarstvennoy bezopasnosti, the Committee for State Security of the Soviet Union, a military intelligence/counterintelligence service) for 62 days. He was held at the notorious Lubyanka Prison in Moscow then prosecuted for espionage. Found guilty, Powers was sentenced to three years imprisonment and seven years of hard labor.

Суд над Ф. Г. Пауэрсом в колонном зале Дома Союзов
Суд над Ф. Г. Пауэрсом в колонном зале Дома Союзов “The trial of F. G. Powers in the column hall of the House of Unions.” (newsko.ru)

After almost two years, Powers was exchanged for William August Fisher, (AKA Rudolf Ivanovich Abel, and Vilyam Genrikhovich Fisher) a long-time Soviet intelligence officer who had been captured in the United States in 1957. [This story was recounted in the Steven Spielberg motion picture, “Bridge of Spies,” which starred Tom Hanks. The film received six Academy Award nominations in 2015.]

Blick am 10.02.1962 uber den Schlagbaum auf Westberliner Seite auf die Glienicker Brucke in Berlin. (Berliner Kurier)
Blick am 10.02.1962 über den Schlagbaum auf Westberliner Seite auf die Glienicker Brücke in Berlin. (Berliner Kurier)

Francis Gary Powers entered the United States Air Force as an aviation cadet in 1950. He graduated from pilot training and was commissioned a second lieutenant in 1952. Powers was then assigned to the 468th Strategic Fighter Squadron, 506th Strategic Fighter Wing at Turner Air Force Base, Georgia, where he flew the Republic F-84G Thunderjet fighter bomber. He received special training in the delivery of the Mark 7 variable-yield tactical nuclear bomb.

In 1956, 1st Lieutenant Powers was released from the U.S. Air Force to participate in the Central Intelligence Agency’s Project Aquatone. He was now a civilian government employee, although he was promised that he could return to the Air Force and that he would keep his seniority and would be promoted on schedule.

Lockheed test pilot Francis Gary Powers, wearing a David Clark Co. MC-3 capstan-type partial-pressure suit and ILC Dover MA-2 helmet for protection at high altitude, with a Lockheed U-2F, N800X, at Van Nuys Airport, California. (Lockheed Martin)
Lockheed test pilot Francis Gary Powers, wearing a David Clark Co. MC-3 capstan-type partial-pressure suit and ILC Dover MA-2 helmet for protection at high altitude. The aircraft is a Lockheed U-2F, N800X, at Van Nuys Airport, California. (Lockheed Martin)

After his release from the Soviet Union, Powers was employed as a test pilot for Lockheed, 1962–1970. He then became an airborne traffic and news reporter for several Los Angeles-area radio and television broadcast stations.

Powers was killed in the crash of a Bell 206B JetRanger helicopter at Van Nuys, California, 1 August 1977.

On 24 November 1986, the Distinguished Flying Cross was awarded posthumously to Powers “For Extraordinary Achievement While Participating in Aerial Flight 1 May 1960.”

After reviewing his record at the request of his son, Francis Gary Powers, Jr., on 15 February 2000, the U.S. Air Force retroactively promoted him to the rank of Captain, effective 19 June 1957, and further credited his military service to include 14 May 1956–1 March 1963, the time he was with the CIA. The award of the Prisoner of War Medal was also authorized.

On June 15, 2012, General Norton Schwartz, Chief of Staff of the Air Force, awarded Captain Francis Gary Powers the Silver Star (posthumous).

Lockheed U-2A 56-6696, sister ship of the reconnaissance aircraft flown by Francis Gary Powers, 1 May 1960. (U.S. Air Force)
Lockheed U-2A 56-6696, sister ship of the reconnaissance aircraft flown by Francis Gary Powers, 1 May 1960. (U.S. Air Force)

Article 360 had been built as a U-2A, the last aircraft of the initial production block. It was delivered to Groom Lake, Nevada, 5 November 1956, and was used for test and development until May 1959, when it was converted to the U-2C configuration.

The Lockheed U-2C was a very high-altitude reconnaissance aircraft used by the U.S. Central Intelligence Agency and the United States Air Force. It was 49 feet, 7 inches (15.113 meters) long with a wingspan of 80 feet, 2 inches (24.435 meters) and height of 15 feet, 2 inches (4.623 meters). The wings had a total area of 600 square feet (55.7 square meters). The U-2C’s zero fuel weight was 13,870 pounds (6,291 kilograms) and gross weight was 23,970 pounds (10,873 kilograms).

The U-2C was powered by a Pratt & Whitney J75-P-13B turbojet engine rated at 17,000 pounds of thrust (75.62 kilonewtons) at Sea Level. This was a two-spool axial-flow turbojet with a 15-stage compressor (8 low- and 7 high-pressure stages) and 3-stage turbine (1 high- and two low-pressure stages).

The U-2C’s cruise speed was 0.72 Mach at 57,000–59,000 feet, (17,374–17,983 meters), and its maximum speed was 0.87 Mach at 62,000 feet (18,898 meters), though the airplane was placarded for a maximum operating speed (MMO/VMO) of 0.80 Mach, or 240 knots. The maximum range was 4,600 nautical miles (8,519 kilometers). It could operate at 76,000 feet (23,165 meters).

SA-2B Guideline anti-aircraft surface-to-air missile on display at the Smithsonian Institution National Air and Space Museum, Steven F. Udvar-Hazy Center. (NASM 2006-1301)

The В-750ВН (13Д) Десна (V-750VN 13D Desna) (NATO designation: SA-2B Guideline) is a two-stage ground-controlled anti-aircraft missile. The two-stage rocket is 10.841 meters (35 feet, 6.8 inches) long, and its loaded weight is 2,283 kilograms (5,033 pounds). First built at Plant N41, it became operational in 1959.

The missile could reach an altitude of 30,000 meters (98,425 feet) and had a maximum range of 34 kilometers (21 miles). It carried a 191 kilogram (421 pound) blast fragmentation warhead.

The missile had a Circular Error Probability (CEP) of 65 meters (213 feet), meaning that 50% of the missiles launched could be expected to come within 65 meters of the target. Early warheads produced approximately 8,000 fragments, each with an initial velocity of 2,500 meters per second (5,592 miles per hour). The maximum blast radius against a high altitude target was about 250 meters (820 feet).

The rocket’s first stage had a maximum diameter of  0.654 meter (2 feet, 3.6 inches) and fin span of 2.586 meters (8 feet, 5.8 inches). It was powered by a solid fuel Kartukov PRD-18 engine. The engine burned for 3–5 seconds and produced a maximum 455 kilonewtons (102,288 pounds) of thrust.

The second stage was 8.139 meters (26 feet, 8.4 inches) long with a maximum diameter of 0.500 meters (1 foot, 7.7 inches). The maximum fin span was 1.691 meters (5 feet, 6.6 inches). Its loaded weight was 1,251 kilograms (2,758 pounds). The second stage was powered by a C2.711B1 (S2.711V1) hypergolic liquid-fueled rocket engine which produced 30.4 kilonewtons (6,834 pounds) of thrust.

S-75 Dvina surface-to-air anti-aircraft missile and launcher.
S-75 Dvina/Desna surface-to-air anti-aircraft missile and launcher.

© 2018, Bryan R. Swopes