Douglas test pilot Gene May with a D-558-I Skystreak research airplane. (Douglas Aircraft Company)
14 April 1947:¹ Douglas Aircraft Company test pilot Eugene Francis (“Gene”) May took the Number 1 U.S. Navy/NACA/Douglas D-558-I Skystreak high-speed research aircraft, Bu. No. 37970, for its first flight at at Muroc Army Airfield. The aircraft had been transported from the Los Angeles factory to Muroc by truck.
Douglas Aircraft Company test pilot Eugene Francis May. (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight Test Engineers)
The Skystreak was a joint United States Navy/National Advisory Committee for Aeronautics (NACA) research aircraft designed to explore flight at high subsonic speed. The Phase I Skystreak was designed by a team led by Douglas Chief Engineer Edward Henry Heinemann. Flight testing was conducted at the NACA High Speed Flight Station at Muroc Army Airfield (later known as Edwards Air Force Base). Three D-558-Is were built, followed by the Phase II, swept-wing Mach 2 D-558-II Skyrocket rocketplane.
The D-558-I carried extensive flight test instrumentation for its time. The wings had 400 orifices for air pressure sensors. During the test series, aircraft stability in the range of 0.82–0.99 Mach was investigated. One of the Skystreaks may have briefly exceeded Mach 1 as it came out of a dive.
Unlike some of the other experimental high speed aircraft of the time, the Skystreak took off from the ground under its own power rather than being carried aloft by a mother ship. While those other aircraft could briefly reach much higher speeds, the D-558-I was able to fly for extended periods in the high-subsonic range, providing scientists and engineers with a tremendous amount of data.
Cutaway illustration of the Douglas D-558-I Skystreak. (U.S. Navy)
The research airplane was a single-place, single-engine, low-wing monoplane with retractable tricycle landing gear. The fuselage of the D-558-I was constructed of an aluminum framework covered with sheet magnesium. It was designed for an ultimate load factor of 18 gs. The wings and tail surfaces were aluminum. The airplane was painted scarlet (not orange, like its contemporary, the Bell X-1) and was known as “the crimson test tube.”
The D-558-I was 35 feet, 1.5 inches (10.706 meters) long with a wingspan of 25 feet, 0 inches (7.620 meters) and overall height of 12 feet, 1.6 inches (3.698 meters). Gross weight 10,105 pounds (4,584 kilograms). It carried 230 gallons (871 liters) of kerosene in its wings.
A Douglas D-558-I Skystreak being inspected by U.S. Navy personnel at the Douglas Aircraft Company plant in Los Angeles, California. [Modelers: Note the GREEN anti-glare panel.] (Getty Images/Bettman)The D-558-I was powered by a single Allison J35-A-11 turbojet engine. The J35 was a single-spool, axial-flow turbojet with an 11-stage compressor section, 8 combustion chambers and single-stage turbine. The J35-A-11 was rated at 5,000 pounds of thrust (22.24 kilonewtons). The engine was 12 feet, 1.0 inches (3.683 meters) long, 3 feet, 4.0 inches (1.016 meters) in diameter and weighed 2,455 pounds (1,114 kilograms).
Bu. No. 37970 made 101 of the 228 Phase I flights. It set a world speed record 1,031.178 kilometers per hour (640.744 miles per hour), flown by Commander Turner F. Caldwell Jr., U.S. Navy, 20 August 1947.² (Major Marion E. Carl, U.S. Marine Corps, flew the second Skystreak, Bu. No. 37971, to 1,047.356 kilometers per hour (650.797 miles per hour),³ breaking Caldwell’s record.)
After Douglas completed the contractor’s test series, the Number 1 Skystreak was turned over to the NACA High Speed Flight Station and designated NACA 140. It was not as highly instrumented as the Number 2 and Number 3 Skystreaks and was not flown, but was used as a source for spare parts for the other D-558-Is.
Douglas D-558-I Skystreak Bu. No. 37970 is on display at the National Naval Aviation Museum, NAS Pensacola, Florida.
Douglas D-558-I Skystreak, Bu. No. 37970, at the National Naval Aviation Museum, Naval Air Station Pensacola, Florida. (U.S. Navy)
¹ Determining the actual dates of historic events is sometimes difficult. In the case of the first flight of the Douglas D-558-I Skystreak, NASA sources cite 14 April 1947. The Naval History and Heritage Command National Naval Aviation Museum says it took place 15 April. Dozens of contemporary newspapers articles published on 15 April indicate that “flight testing will begin this week,” suggesting that the first flight had not yet taken place.
X-15 56-6670 with NB-52A 52-003, 13 April 1960. (NASA)
13 April 1960: Major Robert M. White, USAF, was the first U.S. Air Force test pilot to fly an X-15.
Carried aloft by a Boeing NB-52A Stratofortress, serial number 52-003, the first of three X-15 hypersonic research aircraft, 56-6670, was airdropped at 0915 above Rosamond Dry Lake. Major White ignited the two Reaction Motors XLR-11 rocket engines and with a burn time of 4 minutes, 13.7 seconds, the X-15 accelerated to Mach 1.9 (1,254 miles per hour/2,018 kilometers per hour) and reached 48,000 feet (14,630 meters). Both numbers were slightly short of the planned Mach 2.0 (1,320 miles per hour/2,124 kilometers per hour) and 50,000 feet (15,240 meters).
After 8 minutes, 52.7 seconds, Bob White and the X-15 touched down at Edwards Air Force Base.
This photograph shows the second North American Aviation X-15A, 56-6671, flaring to land on Rogers Dry Lake, Edwards Air Force Base, California The rear skids are just touching down. The white patches on the aircraft’s belly are frost from residual cryogenic propellants remaining in its tanks. (U.S. Air Force)
Over the next 32 months Bob White made 16 flights in the X-15. He was the first pilot to fly faster than Mach 4, Mach 5 and Mach 6. He flew it to Mach 6.04, 4,093 miles per hour (6,587 kilometers per hour) and 314,750 feet (95,936 meters), setting a Fédération Aéronautique Internationale (FAI) record for an altitude gain of 82,190 meters (269,652 feet).¹
White was one of six pilots ² awarded astronaut wings for his flights in the X-15.
Major Robert M. White exits the cockpit of an X-15 at Edwards AFB. White is wearing a David Clark Co. MC-2 full-pressure suit. (U.S. Air Force)
¹ FAI Record File Number 9604
² Joe Henry Engle, William J. (“Pete”) Knight, Robert A. Rushworth, Joseph Albert Walker, Robert Michael White, and Michael James Adams (posthumous)
Ruth Nichols with the Lockheed Vega. Her records are painted on the engine cowling. (FAI)
13 April 1931: Ruth Rowland Nichols set a Fédération Aéronautique Internationale (FAI) World Speed Record of 338.99 kilometers per hour (210.64 miles per hour) over a 3 kilometer course at Carlton, Minnesota.¹
Nichols’ airplane was a 1928 Lockheed Model 5 Vega Special, serial number 619, registered NR496M, and owned by Powell Crosley, Jr. He had named the airplane The New Cincinnati.
Ruth Nichols Sets Air Mark With 210.65 Miles an Hour
New York Girl on One Dash Attains 226.88 Miles Over measured Course at Detroit
Detroit, April 13.—All records for airplane speed with a woman pilot were shattered today when Miss Ruth Nichols, Rye, New York, raced over the three kilometer course at Grosse Ile an an average speed of 210.65 miles an hour. Amelia Earhart Putnam formerly held the record at 181.1 miles per hour.²
Miss Nichols, using a Lockheed Vega plane, powered with a Wasp motor, made four flights over the measured course. On one dash she attained a speed of 226.88 miles an hour.
Hazardous Flight
The course, one of these recognized in the United States, is laid out along the Detroit, Toledo and Ironton Railroad Line. In addition to the rails for guide lines, white strips of cloth marked the route.
After a few warm-up turns over the course Miss Nichols signalled she was ready. The flight was doubly hazardous because she was forced to fly extremely low.
The plane used was the same in which she set the altitude record recently eclipsed by Miss Elinor Smith.³
Miss Nichols, who in the last few months had shattered about all the aviation records there are for women—although her altitude record was broken by Elinor Smith—was the main feature of the aviation show.
There was a good crowd to cheer the tall, smiling Rye woman when she climbed from her record-breaking plane.
“It really isn’t anything to do,” she said. “All a girl needs is a good ship and nerve.”
May Fly the Atlantic
She sensed her speed, followed strips of white cloth which outlined teh course, and in a very matter of fact way established the record.
She was asked concerning reports she planned a transatlantic flight, and answered:
“Fly the ocean? Well, why shouldn’t a girl do the trick?” she said. “There is no reason why one shouldn’t be able. The main requirement is a good ship, I think. If I get one, I may do it. This plane is the same one in which I set a record of 30 hours, 12 minutes for a flight from Los Angeles to New York and return, It has flown many thousands of miles in addition, and was used in the altitude flight. You saw what it did today.”
When Miss Nichols’ plane reached its top speed of 226.88 miles an hour she was but 51.60 miles behind the world’s record for land planes, held by Adjutant Bonnett, of France, who went 278.48.
Inside the mammoth aviation show hangar today air enthusiasts discovered they were walking about the aisles with Henry Ford.
The motor car magnate visited the show with W. B. Mayo, Ford engineer, and his two grandsons, Henri II and Benson Ford. Ford viewed the exhibit of his own giant liners and then inspected other exhibits.
He took particular interest in new inventions displayed. He was in the hangar an hour and a half before his presence became known generally.
Yesterday 18,000 went through the gates, while thousands more stood about City Airp0ort to watch the planes. They say among other things the unofficial setting of a new altitude mark by light planes.
Kenneth Scholter, 19-year-old pilot from Hudson, Ohio, attained 19,500 feet ina tiny Aeronca monoplane, powered by a 30 horsepower motor yesterday.
Built by the Lockheed Aircraft Company, Burbank, California, the Vega was a single-engine high-wing monoplane with fixed landing gear. It was flown by a single pilot in an open cockpit and could be configured to carry four to six passengers.
The Lockheed Vega was a very state-of-the-art aircraft for its time. The prototype flew for the first time 4 July 1927 at Mines Field, Los Angeles, California. It used a streamlined monocoque fuselage made of molded plywood. The wing and tail surfaces were fully cantilevered, requiring no bracing wires or struts to support them. The fuselage was molded laminated plywood monocoque construction and the wing was cantilevered wood.
The Model 5 Vega is 27 feet, 6 inches (8.382 meters) long with a wingspan of 41 feet (12.497 meters) and overall height of 8 feet, 2 inches (2.489 meters). Its empty weight is 2,595 pounds (1,177 kilograms) and gross weight is 4,500 pounds (2,041 kilograms).
Nichols’ airplane was powered by an air-cooled, supercharged 1,343.804-cubic-inch-displacement (22.021 liter) Pratt & Whitney Wasp C nine-cylinder radial engine with a compression ratio of 5.25:1. It was rated at 420 horsepower at 2,000 r.p.m. at Sea Level, burning 58-octane gasoline. The engine drove a two-bladed controllable-pitch Hamilton Standard propeller through direct drive. The Wasp C was 3 feet, 6.63 inches (1.083 meters) long, 4 feet, 3.44 inches (1.3-7 meters) in diameter and weighed 745 pounds (338 kilograms).
“Ruth Nichols was the only woman to hold simultaneously the women’s world speed, altitude, and distance records for heavy landplanes. She soloed in a flying boat and received her pilot’s license after graduating from Wellesley College in 1924, becoming the first woman in New York to do so. Defying her parents wishes to follow the proper life of a young woman, in January 1928 she flew nonstop from New York City to Miami with Harry Rogers in a Fairchild FC-2. The publicity stunt brought Nichols fame as “The Flying Debutante” and provided headlines for Rogers’ airline too. Sherman Fairchild took note and hired Nichols as a northeast sales manager for Fairchild Aircraft and Engine Corporation. She helped to found the Long Island Aviation Country Club, an exclusive flying club and participated in the 19,312-meter (12,000-mile) Sportsman Air Tour to promote the establishment of clubs around the country. She was also a founder of Sportsman Pilot magazine. Nichols set several women’s records in 1931, among them a speed record of 339.0952 kph (210.704 mph), an altitude record of 8,760 meters (28,743 feet), and a nonstop distance record of 3182.638 kilometers (1,977.6 miles). Her hopes to become the first woman to fly the Atlantic Ocean were dashed by two crashes of a Lockheed Vega in 1931, in which she was severely injured, and again in 1932. In 1940, Nichols founded Relief Wings, a humanitarian air service for disaster relief that quickly became an adjunct relief service of the Civil Air Patrol (CAP) during World War II. Nichols became a lieutenant colonel in the CAP. After the war she organized a mission in support of the United Nations Children’s Fund (UNICEF) and became an advisor to the CAP on air ambulance missions. In 1958, she flew a Delta Dagger at 1,609 kph (1,000 mph) at an altitude of 15,544 meters (51,000 feet). A Hamilton variable pitch propeller (which allowed a pilot to select a climb or cruise position for the blades), from her Lockheed Vega is displayed in the Golden Age of Flight gallery. Nichols’ autobiography is titled Wings for Life.”
— Smithsonian Institution National Air and Space Museum, Women In Aviation and Space History, The Golden Age of Flight.
¹ FAI Record File Number 12282
² FAI Record File Number 12326: 291.55 kilometers per hour (181.16 miles per hour), Detroit, Michigan, U.S.A., 5 July 1930
³ FAI Record File Number 12228: 8,761 meters (27,743.44 feet), Jersey City Airport, New Jersey, U.S.A., 6 March 1931
Ruth Nichols with Walter D. Wood, National Aeronautic Association, who is holding the sealed barograph after setting FAI World Altitude Record. (FAI)
Brigadier General Charles A. Lindbergh, USAFR (Ret.), and Major Bruce Ware USAF, 31st ARRS, with Jolly 36, HH-3E 66-13289, 12 April 1972. (U.S. Air Force)
12 April 1972: Famed pioneer aviator Charles A. Lindbergh, Brigadier General, United States Air Force Reserve, with a television news team investigating reports of a “lost tribe” in the Tasaday mountains of Mindanao, Republic of the Philippines, were stranded on a 3,000-foot (915 meter) jungle ridge line when their support helicopter developed mechanical trouble. Faced with a three-day walk through difficult terrain, the 70-year-old pilot was in trouble. The 31st Aerospace Rescue and Recovery Squadron at Clark Air Base on the Island of Luzon, was called in.
Major Bruce Ware and his crew, co-pilot Lieutenant Colonel Dick Smith, flight engineer Staff Sergeant Bob Baldwin, and pararescueman Airman 1st Class Kim Robinson, flew their Sikorsky HH-3E Jolly Green Giant, 66-13289, over 600 miles (965 kilometers) to the rescue location. The helicopter, call sign “Jolly 36,” was supported by a Lockheed HC-130N Combat King for aerial refueling, navigation and communications.
A Sikorsky HH-3E Jolly Green Giant refuels in flight from a Lockheed HC-130 Combat King. (U.S. Air Force)
The pick-up point was a knife-edge ridge. Trees had been cut for clearance, but landing the Sikorsky was impossible. Major Gray had to hover with the nose wheel on one side of the ridge, and the main wheels on the other, with the boarding steps a few feet over the ridge top. The very high temperature and humidity created a density altitude equivalent to more than 6,000 feet (1,830 meters). Hovering the helicopter out of ground effect (OGE) was difficult under these conditions and fuel had to be dumped to lighten the load. Even so, only a few persons could be carried at a time. Eight trips to a drop point 15 minutes away were required. Lindbergh was on the second load. On clearing the ridge, Major Ware rendezvoused with the HC-130N to take on fuel. They partially refueled twice during the ridge line operation. Lindbergh commented that although he had helped to develop inflight refueling, he had never been aboard an aircraft while it was taking place.
After all persons—a total of 46—had been removed from the mountain, Jolly 36 and the Combat King flew back to Clark Air Base. The total elapsed time for the mission was 12 hours, 20 minutes, with 11 hours, 30 minutes actual flight time. Major Ware had to just sit in the cockpit for a few minutes before he could leave the helicopter, but General Lindbergh refused to leave until Ware was ready.
Distinguished Flying Cross
Major Ware was awarded the Distinguished Flying Cross. The other crew members of Jolly 36 and all those aboard the Combat King received the Air Medal. Ware retired from the Air Force in July 1989, after 29 years of service.
Sikorsky HH-3E 66-13289 (c/n 61-588) was delivered to the U.S. Air Force 8 December 1967 as a CH-3E. By July it was in South East Asia, operating as Jolly Green 03. The helicopter was later modified to the HH-3E combat rescue configuration. It was lost in the South China Sea in 1972, following a rescue from a freighter west of Luzon, Philippine Islands.
Notified by the accompanying HC-130 that the helicopter was trailing smoke, the aircraft commander, Lieutenant Colonel James (“Bud”) Green, made an emergency landing at sea. It was determined that the main transmission had cracked and was leaking oil.
A U.S. Navy helicopter hoisted the Air Force crew and the rescued man aboard, while a tug boat had been dispatched to recover 66-13289. Unfortunately the Jolly Green Giant overturned during a squall and sank in 12,900 feet (3,932 meters) of water.
Sikorsky CH-3E Jolly Green Giant 66-13289, hovering over the deck of a U.S. Navy guided missile frigate, USS William V. Pratt (DLG-13), August 1967. (U.S. Navy)
Lockheed TF-104G Starfighter N104L, World Speed Record holder. (Lockheed Martin)
12 April 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 a two-place Lockheed TF-104G Starfighter, FAA registration N104L, over a 15-to-25 kilometer (9.32/15.53 miles) straight course at an average speed of 2,048.88 kilometers per hour (1,273.115 miles per hour).¹
Jackie Cochran wrote about flying the 15/25 kilometer straight course in her autobiography:
Picture in your mind a rectangular tunnel, 300 feet high, a quarter of a mile wide, and extending 20 miles long through the air at an altitude of 35,000 feet. I had to fly through that tunnel at top speed without touching a side. There were no walls to see but radar and ground instruments let me know my mistakes immediately. Up there at 35,000 feet the temperature would be about 45 degrees below zero. Not pleasant but perfect for what I was doing. Inside the plane you are hot because of the friction of speeding through the air like that. The cockpit was air-conditioned, but when you descend, things happen so fast the plane’s air-cooling system can’t keep up with it. I was always hot and perspiring back on the ground.
—Jackie Cochran: An Autobiography, by Jacqueline Cochran and Maryann Bucknum Brinley, Bantam Books, New York 1987, Page 314.
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, remaining in service until it was retired in 1989.
Jackie Cochran with the Lockheed TF-104G Starfighter N104L, World Record Holder. (FAI)
The Skystreak was a joint United States Navy/National Advisory Committee for Aeronautics (NACA) research aircraft designed to explore flight at high subsonic speed. The Phase I Skystreak was designed by a team led by Douglas Chief Engineer Edward Henry Heinemann. Flight testing was conducted at the NACA High Speed Flight Station at Muroc Army Airfield (later known as Edwards Air Force Base). Three D-558-Is were built, followed by the Phase II, swept-wing Mach 2 D-558-II Skyrocket rocketplane.
