Tag Archives: Wright Aeronautical Corporation

4 September 1936

Louise Thaden and Blanche Noyes are greeted by Vincent Bendix at Los Angeles, 4 September 1936. (Smithsonian Institution National Air and Space Museum NASM-SI-83-2088)

4 September 1936: Louise Thaden was the first woman to win the Bendix Trophy Race when she and her co-pilot, Blanche Wilcox Noyes, flew a Beechcraft C17R “Staggerwing,” NR15835 (manufacturer’s serial number C17R-77), from Floyd Bennett Field, Brooklyn, New York, to Mines Field, Los Angeles, California, in 14 hours, 55 minutes, 1.0 seconds. With one fuel stop at the Beech Aircraft Company factory in Wichita, Kansas, Thaden and Noyes had averaged 165.35 miles per hour (266.11 kilometers per hour), even though—against the advice of Walter Beech—they had maintained only 65% power for the entire race. They landed at 4:49.49 p.m., Pacific Standard Time (00:49, 5 September, UTC).

In addition to the trophy, Mrs. Thaden won a prize of $4,500 for first place, plus $2,500 for the fastest speed in the race set by a woman (unaccompanied by a man).

She was also awarded the Harmon Trophy.

Laura Ingalls, flying her Lockheed Orion 9D Special, NR14222, finished in second place, arriving 45 minutes after Thaden and Noyes, at 5:54.28 p.m.. William Warner finished in third place in a Vultee V-1A, and George Pomeroy was fourth flying a Douglas DC-2 transport. And in fifth place was Amelia Earhart and Helen Richey in Earhart’s Lockheed Model 10E Electra Special, NR16020.

Louise Thaden with the Bendix Trophy. (Tom Sande, AP)
Louise McPhetridge, 1926. (The Razorback)

Iris Louise McPhetridge was born 12 November 1905 at Bentonville, Arkansas. She was the first of three daughters of Roy Fry McPhetridge, owner of a foundry, and Edna Hobbs McPhetridge. She was educated at the University of Arkansas at Fayetteville, a member of the Class of 1927. She was president of the Delta Delta Delta (ΔΔΔ) Sorority, Delta Iota (ΔΙ) Chapter, head sports for basketball and president of The Panhellenic.

Louise McPhetridge had been employed by Walter Beech as a sales representative at Wichita, Kansas, and he included flying lessons with her employment. She received her pilot’s license from the National Aeronautic Association, signed by Orville Wright, 16 May 1928.

Mrs Thaden set an FAI World Record for Altitude of 6,178 meters (20,269 feet) over Oakland, California, 7 December 1928.¹  On 17 March 1929, she set an FAI record for duration of 22 hours, 3 minutes.²

In 1929, she was issued Transport Pilot License number 1943 by the Department of Commerce. Mrs. Thaden was the fourth woman to receive an Airline Transport Pilot rating.

Louise Thaden’s original pilot license, No. 6850, issued by the National Aeronautic Association and signed by Orville Wright. (The Central Arkansas Library System)

Miss McPhetridge married Mr. Herbert von Thaden at San Francisco, California, 21 July 1928. Thaden was a former military pilot and an engineer. They would have two children, William and Patricia.

Thaden had founded the Thaden Metal Aircraft Company, builder of the all-metal Thaden T-1, T-2, and T-4 Argonaut. Thaden went on to design molded plywood furniture for the Thaden-Jordan Furniture Corporation. His designs are considered to be works of art, and individual pieces sell for as much as $30,000 today.

Iris Louise McPhetridge Thaden with her husband, Herbert von Thaden, in front of the Beech C17R Staggerwing, NR15385. (San Diego Air and Space Museum Archives)

Louise Thaden served as secretary of the National Aeronautic Association, and was a co-founder of The Ninety-Nines. She served as that organization’s vice president and treasurer. She set several world and national records and was awarded the national Harmon Trophy as Champion Aviatrix of the United States in 1936.

Louise Thaden stopped flying in 1938. She died at High Point, North Carolina, 9 November 1979.

Louise Thaden with her 1936 Vincent Bendix Trophy, circa 1975. (NASM)
Louise Thaden in the cockpit of Beechcraft C-17R NR15385 at the start of the Bendix Air Race. (San Diego Air and Space Museum Archives)
Louise Thaden in the cockpit of Beechcraft C17R NR15835 at the start of the Bendix Air Race. (San Diego Air and Space Museum Archives)

The Beechcraft C17R was single-engine, single-bay biplane operated by a single pilot and could carry up to four passengers in its enclosed cabin.The basic structure was a welded tubular steel frame with wood formers and stringers. The wings and tail surfaces were built of wood spars and ribs with the leading edges and wing tips covered with plywood. The airplane was covered with doped fabric, except the cabin and engine, which were covered in sheet metal. It was equipped with electrically-operated retractable landing gear and wing flaps.

The Beechcraft Staggerwing got its name because its lower wing was placed ahead of the upper wing (negative stagger). While most biplanes had staggered wings, the Staggerwing was unusual in having negative stagger. This not only increased the pilot’s field of vision, but improved the airplane’s stability in a stall. The Staggerwing was a fast airplane for its time and set several speed and altitude records.

The Beech C17R was 24 feet, 5 inches (7.442 meters) long with a wingspan of 32 feet, 0 inches (9.754 meters) and overall height of 8 feet, 2 inches (2.489 meters). According to the Bureau of Air Commerce license certificate dated 9 October 1936, C17R-81 had an empty weight of 2,393 pounds (1,085 kilograms), and its maximum gross weight was 3,900 pounds (1,769 kilograms).

This photograph of Beechcraft Model 17s under construction at Wichita, Kansas, reveals the structure of the airplane. (Beech Aircraft Corporation)

While most biplanes had staggered wings, the Staggerwing was unusual in having negative stagger. This not only increased the pilot’s field of vision, but improved the airplane’s stability in a stall. The leading edge of the Model C17 upper wing was 2 feet, 1 inches (0.635 meters) aft of the lower wing. The leading edges had 0° sweep. Both wings had an angle of incidence of 3°. The upper wing had no dihedral, but the lower wing had +1°. The mean vertical gap between the wings was 5 feet (1.524 meters), and the chord of both wings was 5 feet, 0 inches (1.524 meters). The total wing area was 273 square feet (25.4 square meters). The horizontal stabilizer had 0° incidence, while the vertical fin was offset 0° 43′ to the left of the airplane’s centerline.

Beech Aircraft Corporation Model 17 “Staggerwings” under construction. (Beech B-111/U.S. Air Force)

The Staggerwing was offered with a selection of engines of different displacements and horsepower ratings. The C17R was powered by an air-cooled, supercharged, 971.930-cubic-inch-displacement (15.927 liter) Wright Whirlwind 440 (R-975E3), a 9-cylinder direct-drive radial engine with a compression ratio of 6.3:1. The R-975E3 was rated at 420 horsepower at 2,200 r.p.m., and 440 horsepower at 2,250 r.p.m. for takeoff, burning 92-octane gasoline. The engine was 43.00 inches (1.092 meters) long and 45.25 inches (1.149 meters) in diameter. It weighed 700 pounds (318 kilograms). The serial number of the engine installed in C17R-81 was 12885. It drove a two-bladed adjustable pitch Hamilton Standard propeller with a diameter of 8 feet, 6 inches (2.591 meters), serial number 18560.

This engine gave the C17R Staggerwing a cruise speed of 195 miles per hour (314 kilometers per hour) at 5,000 feet (1,524 meters), 202 miles per hour (325 kilometers per hour) at 10,000 feet (3,048 meters) and maximum speed of 211 miles per hour (340 kilometers per hour). The service ceiling was 21,500 feet (6,553 meters) and its range with standard fuel capacity, 98 gallons (371 liters) was 800 miles (1,288 kilometers).

Beechcraft C17R NC15835 (s/n C17R-77) at the finish of the Bendix Trophy Race, Mines Field, Los Angeles, 4 September 1936. (National Air and Space Museum, Archives Division)

The Beechcraft C17R flown by Louise Thaden to win the Bendix Trophy, serial number C17R-77, had already been sold to the government of the Republic of Honduras, but Walter Beech let Thaden use it for the race before delivering to the owner. It was painted in Sherwin Williams Consolidated Blue with white stripes. The rear passenger seats were removed and a 56 gallon (212 liter) auxiliary fuel tank installed in their place.

After the race, the Staggerwing overhauled, repainted Insignia Blue with silver wings, and was flown to Central America by Paul E. Zimmerman. It was assigned to the  Escuela Militar de Aviacion.

Three C17R Staggerwings have been registered as N15835, including serial numbers C17R-74; C-17R-77, the Bendix race winner; and C17R-81, which was owned by Thaden. Current FAA records indicate that the first, C17R-74, is currently registered N15835.

Beechcraft produced thirteen of the C17R variant.

¹ FAI Record File Number 12221

² FAI Record File Number 12223

© 2024, Bryan R. Swopes

26 June 1942

Grumman XF6F-1 Hellcat, Bu. No. 02981.
Grumman XF6F-1 Hellcat, Bu. No. 02981. (Northrop Grumman)

26 June 1942: The Grumman XF6F-1, Bureau of Aeronautics serial number (Bu. No.) 02981, prototype for the Navy and Marine Corps F6F Hellcat fighter, with Grumman’s Chief Engineer and Test Pilot Robert Leicester Hall flying, made a 25-minute first flight at the Grumman Aircraft Engineering Corporation plant, Bethpage, Long Island, New York.

The first Hellcat was powered by an air-cooled, supercharged, 2,603.737-cubic-inch-displacement (42.688 liters) Wright Aeronautical Division Twin Cyclone GR2600B676 (R-2600-10) two-row, 14-cylinder radial engine. This engine had a compression ratio of 6.9:1 and required 100-octane aviation gasoline. The R-2600-10 was rated at 1,500 horsepower at 2,400 r.p.m. at Sea Level, and 1,700 horsepower at 2,600 r.p.m. for takeoff. It turned a three-bladed Curtiss Electric propeller through a 0.5625:1 gear reduction. The R-2600-10 was 4 feet, 6.26 inches (1.378 meters) in diameter and 6 feet, 2.91 inches (1.903 meters) long. It weighed 2,115 pounds (959 kilograms).

Grumman XF6F-1 Hellcat, Bu. No. 02981. (Northrop Grumman)

Beginning with the second prototype, Bu. No. 02982, the Pratt & Whitney Double Wasp SSB2-G (R-2800-10) 18-cylinder engine became the standard powerplant. The R-2800-10 was an air-cooled, supercharged, 2,804.4-cubic-inch-displacement (45.956 liter), twin-row 18-cylinder radial engine with water injection. The engine had a compression ratio of 6.65:1 and was rated at 1,550 horsepower at 2,550 r.p.m. at 21,500 feet (6,553 meters), and 2,000 horsepower at 2,700 r.p.m. for takeoff, burning 100-octane gasoline. The engine drove a three-bladed Hamilton Standard Hydromatic constant-speed propeller with a diameter of 13 feet, 1 inch (3.988 meters) through a 2:1 gear reduction. The R-2800-10 was 4 feet, 4.50 inches (1.334 meters) in diameter, 7 feet, 4.47 inches (2.247 meters) long, and weighed 2,480 pounds (1,125 kilograms), each. The engine weighed 2,480 pounds (1,125 kilograms).

Grumman XF6F-1 Hellcat Bu. No. 02981 in flight. (Northrop Grumman)

The first prototype was quickly re-engined to the Pratt & Whitney radial and redesignated XF6F-3. Bob Hall flew it with the new engine on 30 July 1942. A few weeks later, 17 August, the Hellcat’s new engine failed and Hall crash-landed at Crane’s Farm. The airplane was moderately damaged and Hall was seriously injured.

Grumman XF6F-3 Bu. No. 02981 after crash landing in a field at Crane's Farm, Long Island, New York, August 1942. (Grumman)
Grumman XF6F-3 Bu. No. 02981 after crash landing in a field at Crane’s Farm, Long Island, New York, 17 August 1942. (Northrop Grumman)

The airplane was rebuilt and continued in the test program. It was eventually converted to the XF6F-4 with a two-speed turbocharged Pratt & Whitney Double Wasp 2SB-G (R-2800-27) which produced 2,000 horsepower at 2,700 r.p.m. It was armed with four 20 mm cannon.

The first prototype Hellcat was converted to the XF6F-4, seen here at NACA, langley Field, Virginia in 1944. (NASA)
The first prototype Hellcat was converted to the XF6F-4 configuration, seen here at NACA, Langley Field, Virginia in 1944. (NASA)

The Grumman F6F-3 Hellcat is single-place, single-engine fighter designed early in World War II to operate from the U.S. Navy’s aircraft carriers. It is a low wing monoplane monoplane of all metal construction. The wings can be folded against the sides of the fuselage for storage aboard the carriers. Landing gear is conventional, retractable, and includes an arresting hook.

The F6F-3 is 33 feet, 7 inches (10.236 meters) long with a wingspan of 42, feet 10 inches (12.842 meters) and overall height of 14 feet, 5 inches (4.394 meters) in three-point position. It has an empty weight of 9,207 pounds (4,176 kilograms) and gross weight of 12,575 pounds (5,704 kilograms).

A Grumman F6F Hellcat ready for takeoff from an Essex-class aircraft carrier, circa 1944. (U.S. Navy)
A Grumman F6F Hellcat ready for takeoff from an Essex-class aircraft carrier, circa 1943. (U.S. Navy)

The F6F-3 Hellcat was powered by a Pratt & Whitney Double Wasp SSB2-G (R-2800-10W) engine with water injection, rated at 2,000 horsepower at 2,700 r.p.m. for takeoff, using 100/130 octane aviation gasoline. The normal power rating was 1,550 horsepower at 2,550 r.p.m. at  22,500 feet (6,858 meters). The engine drove a three-bladed Hamilton Standard Hydromatic constant-speed propeller with a diameter of 13 feet, 1 inch (3.988 meters) through a 2:1 gear reduction. The engine weighed 2,480 pounds (1,125 kilograms).

Two Grumman F6F-3 Hellcat fighters, Summer 1943.(U.S. Navy)
Two Grumman F6F-3 Hellcat fighters, Summer 1943. (U.S. Navy)

In clean configuration, the F6F-3 had a maximum speed of 321 miles per hour (517 kilometers per hour) at Sea Level, and 384 miles per hour (618 kilometers per hour) at 18,000 feet (5,486 meters). It could climb to 10,000 feet (3,048 meters) in 3.2 minutes, and to 20,000 feet (6,096 meters) in 7.0 minutes. The service service ceiling was 38,800 feet (11,826 meters). It had a combat radius of 335 nautical miles (386 miles/620 kilometers). The maximum ferry range was 1,540 miles (2,478 kilometers).

The Hellcat’s armament consisted of six air-cooled Browning AN-M2 .50-caliber machine guns, mounted three in each wing, with 2,400 rounds of ammunition.

The Grumman Hellcat was the most successful fighter of the Pacific war, with a kill-to-loss ratio of 19:1. It was in production from 1942 to 1945 and remained in service with the United States Navy until 1956. A total of 12,275 were built by Grumman at Bethpage. This was the largest number of any aircraft type produced by a single plant.

High humidity creates visible propeller tip vortices as this Grumman F6F Hellcat prepares to takeoff from an Essex-class aircraft carrier. (U.S. Navy)
High humidity creates visible propeller tip vortices as this Grumman F6F-3 Hellcat prepares to takeoff from USS Yorktown (CV-10), November 1943. (U.S. Navy)
Robert Leicester Hall

Robert Leicester Hall was born at Taunton, Massachussetts, 22 August 1905. He was the son of Bicknell Hall, a mechanical engineer, and Estella Beatrice Lane Hall.

Hall attended the University of Michigan, graduating in 1927 with Bachelor of Science degree in Mechanical Engineering (B.S.M.E.).

In 1929 he went to work for the Fairchild Airplane Manufacturing Company at Farmingdale, New York. While there, Hall met his first wife, Eugenie, a secretary at the plant. They were married in 1930, and lived in a rented home on St. James Avenue, Chicopee City, Massachusetts. Their son, Robert Jr., was born 5 November 1931.

Granville Brothers Gee Bee Model Z, NR77Y, City of Springfield.

Also in 1931, Hall began working for Granville Brothers Aircraft at Springfield, Massachusetts. He designed the Gee Bee Model Z Super Sportster air racer. He left Granville Brothers in 1933 to go to work for the Stinson Aircraft Company in Dayton, Ohio. There he designed the Stinson Reliant.

A Stinson SR-8E Reliant, NACA 94, at the Langley Research Center, 5 August 1936. (NASA)

In 1936, Bob Hall became the Chief Engineer for the Grumman Aircraft Engineering Corporation, Bethpage, Long Island, New York. He designed the F4F Wildcat, F6F Hellcat, F7F Tigercat, and F8F Bearcat fighters, and the TBF Avenger torpedo bomber. As corporate vice president, he supervised the design of the F9F Panther and Cougar jet fighters.

Hall married his second wife, Rhoda C. Halvorsen, 18 January 1939, at New York City, New York.

Hall retired from Grumman in 1970. Two of his sons, Eric and Ben Hall, founded Hall Spars and Rigging of Bristol, Rhode Island.

Robert Leicester Hall died at Newport, Rhode Island, 25 February 1991, at the age of 85 years.

Grumman F6F-3 Hellcat, Bu. No. 4778, Long Island, New York, circa 1942. (Rudy Arnold Collection/NASM)
Grumman F6F-3 Hellcat Bu. No. 26108, Long Island, New York, circa 1943. (Rudy Arnold Collection/NASM)

© 2018, Bryan R. Swopes

24 June 1939

Boeing 314 NC18603, Yankee Clipper (Harris and Ewing)
Boeing 314 NC18603, Yankee Clipper (Harris & Ewing)

24 June 1939: The Pan American Airways System began scheduled air service from the United States to Britain. The Boeing 314 Yankee Clipper, NC18603, made the first flight from Port Washington, New York, departing at 8:21 a.m. It made intermediate stops at Shediac, New Brunswick, and Botwood, Newfoundland, where fog delayed the flying boat until 12:49 p.m., 28 June. Continuing across the Atlantic, Yankee Clipper made another stop at Foynes, Ireland, and finally arrived at Southampton at 7:25 p.m. that evening.

The largest airplane of the time, the Pan American Clipper flying boat could carry 77 passengers in “one class” luxury, with a ticket priced at $675—that’s in 1939 dollars. ($12,389.82 in 2020) Uniformed waiters served five and six course meals on silver service. Seats could be folded down into beds.

The flight deck of a Boeing 314. At the left, standing, is the airliner's navigator. Beyond him are the captain (left) and co-pilot. On the right side of the cabin are the radio operator and flight engineer. (Unattributed)
The flight deck of a Boeing 314. At the left, standing, is the airliner’s navigator. Beyond him are the captain (left) and co-pilot. On the right side of the cabin are the radio operator and flight engineer. (Unattributed)

The Boeing Model 314 was a large four-engine, high-wing monoplane flying boat designed and built by the Boeing Airplane Company to take off and land on water. It had a crew of 10. The wings and engine nacelles had been designed for Boeing XB-15 heavy bomber. It was 106 feet (32.309 meters) long with a wingspan of 152 feet (46.330 meters). It had a maximum take off weight of 82,500 pounds (37,421 kilograms).

The Boeing 314 was powered by four air-cooled, supercharged, 2,603.737-cubic-inch-displacement (42.668 liter) Wright Aeronautical Division Cyclone 14 GR2600A2, two-row, 14-cylinder radial engines with a compression ratio of 7.1:1. They were rated at 1,200 horsepower at 2,100 r.p.m., and 1,550 horsepower at 2,400 r.p.m. for takeoff, burning 91/96 octane gasoline. These engines (also commonly called “Twin Cyclone”) drove three-bladed Hamilton Standard Hydromatic full-feathering constant-speed propellers with a diameter of 14 feet (4.267 meters) through a 16:9 gear reduction. The GR2600A2 was 5 feet, 2.06 inches (1.576 meters) long and 4 feet, 7 inches (1.387 meters) in diameter. It weighed 1,935 pounds (878 kilograms). The engines could be serviced in flight, with access through the wings.

Pan American Airways’ Boeing 314 NC18603, Yankee Clipper.

The Boeing 314 had a maximum speed of 199 miles per hour (320 kilometers per hour), with a  range of 3,685 miles (5,930 kilometers) at its normal cruising speed of 183 miles per hour (295 kilometers per hour). Its service ceiling was 13,400 feet (4,084 meters). The fuel capacity was 4,246 gallons (16,073 liters).

Boeing built six Model 314 and another six 314A flying boats for Pan American Airways and British Overseas Airways Corporation.

Yankee Clipper was destroyed 22 February 1943 at Lisbon, Portugal. A wing hit the water on landing. 24 of the 39 persons aboard were killed.

This iluustration shows the interior arrangement of the Boeing 314. (Unattributed)
This illustration shows the interior arrangement of the Boeing 314. It was published in LIFE Magazine, circa 1937. (Boeing)

© 2017, Bryan R. Swopes

9 May 1926

The Byrd Arctic Expedition Fokker F.VIIa/3m at Spitzbergen, Svalbard, 9 May 1927. (Ohio State University Archives)

9 May 1926: Lieutenant Commander Richard Evelyn Byrd, Jr., and Chief Aviation Pilot Floyd Bennett, United States Navy, departed Spitzbergen in the Svalbard Archipelago, Norway, on a round-trip flight to the North Pole.

Lieutenant Commander Richard E. Byrd, Jr., U.S. Navy
Lieutenant Commander Richard E. Byrd, Jr., U.S. Navy (Library of Congress)
Chief Aviation Pilot Floyd Bennett, U.S. Navy (Photo NH 50611)
Chief Aviation Pilot Floyd Bennett, U.S. Navy, circa April 1925 (U.S. Navy)

Their aircraft was a Fokker F.VIIa/3m three-engine, high-wing monoplane, construction number 600. The airplane was It was purchased for the Byrd Arctic Expedition by Edsel Ford, and named Josephine Ford in honor of his 3-year-old daughter, Josephine Clay Ford.

Fokker F.VIIa/3m c/n 4900, Josephine Ford. (Getty Images/Hulton Archive)
Fokker F.VIIa/3m, Josephine Ford. (Getty Images/Hulton Archive)

With Chief Bennett as the expedition’s pilot and Lieutenant Commander Byrd navigating, they flew approximately 840 miles (1,350 kilometers) to the Pole and returned the same day. The total duration of the flight was 15 hours, 44 minutes.

Commander Byrd, President Coolidge, Warrant Officer Bennett.
Secretary of the Navy Curtis Dwight Wilbur, Commander Richard Evelyn Byrd, Jr., President John Calvin Coolidge, Jr., Warrant Officer Floyd Bennett and Admiral Edward Walter Eberle, at the White House, 5 March 1927.
Medal of Honor, U.S. Navy, 1919–1942.

For this accomplishment, Lieutenant Commander Byrd was promoted to Commander, and Chief Bennett to Warrant Officer. Both aviators were awarded the Medal of Honor by President Coolidge.

In the years since this event, there has been speculation that the airplane may not have actually reached the North Pole. Professor Gerald Newsom of Ohio State University, an astronomer who taught celestial navigation, analyzed Byrd’s handwritten notes and estimated that because of the inadequacies of the equipment then available to Byrd, Josephine Ford may have flown 21 miles (33.8 kilometers) beyond the North Pole, or fallen 78 miles (125.5 kilometers) short. Professor Newsom pointed out, though, that the fact the Byrd was able to return to Svalbard after nearly 16 hours proves that he knew how to navigate using that equipment under those conditions.

(See https://web.archive.org/web/20161216185546/http://researchnews.osu.edu/archive/byrdnorth.htm for additional information.)

Richard E. Byrd holding a Bumstead Sun Compass used for celestial navigation at very high latitudes, 1925. (Maynard Owen Williams/National Geographic Society, Image ID 612617)
Richard E. Byrd holding a Bumstead Sun Compass used for celestial navigation at very high latitudes, 1925. (Maynard Owen Williams/National Geographic Society, Image ID 612617)
Fokker F.VIIa/3m c/n 4900, Josephine Ford (David Horn Collection)
Fokker F.VIIa/3 Josephine Ford (David Horn Collection)
Prototype Fokker F.VIIa/3m, c/n 600, at Detroit Michigan, September 1925. (Robert McMahan Collection)

Josephine Ford is the first Fokker F.VIIa/3m monoplane, c/n 600. It was built by Anton H.G. Fokker’s N.V. Koninklijke Nederlandse Vliegtuigenfabriek Fokker at Veere, Netherlands in 1925, and made its first flight at Schipol, 4 September 1925. It was demonstrated for Koninklijke Luchtvaart Maatschappij N.V. (KLM, Royal Dutch Airlines), then disassembled and shipped to the United States. 600 was flown from New York to Detroit, where it participated in the First Annual Aerial Reliability Tour, 28 September–3 October 1925, flown by Egbert P. Lott. The airplane was evaluated by the U.S. Army Air Corps at Wright Field, and was then sold to Edsel Ford.

The United States did not register aircraft prior to 1927. According to the Federal Aviation Administration’s Registry data base, FOKKER VII (TRI-MOTOR) Serial Number 600 was registered 21 June 1927 to the Ford Motor Company, Dearborn, Michigan, as NC267. The registration was cancelled 14 March 1930.

Fokker F.VII 3m Josephine Ford (Fokker Aircraft)

Sources vary as to the actual dimensions of the Fokker F.VIIa/3m. The Henry Ford, the museum which owns the airplane, gives its dimensions as 49.167 feet (14.986 meters) in length, with a wingspan of 63.5 feet (19.355 meters) and height of 12.75 feet (3.886 meters). Another source says that the airplane is 47 feet, 11 inches (14.605 meters) long with a wingspan of 63 feet, 4 inches (19.304 meters) and height of 12 feet, 8 inches (3.861 meters). Its empty weight is variously given as 4,630 pounds, 5,060 pounds or 6,724 pounds and maximum takeoff weight is 7,950 pounds, 8,800 pounds or 11,464 pounds. It has a cruise speed of 81 knots. Or 90. . . .

Josephine Ford was powered by three air-cooled 787¼-cubic-inch-displacement (12.901 liter) Wright Aeronautical Corporation Model J-4 Whirlwind nine-cylinder radial engines, rated at 215 horsepower at 1,800 r.p.m. The J-4 weighed 475 pounds. (The specific variant, J-4, J-4A, or J-4B, is not known.)

Josephine Ford is in the collection of The Henry Ford Museum, Dearborn, Michigan.

Fokker F.VII/3m Josephine Ford, flown by the Byrd Arctic Expedition, in the collection of The Henry Ford Museum.
Fokker F.VIIa/3m Josephine Ford, flown by the Byrd Arctic Expedition, in the collection of The Henry Ford, Dearborn, Michigan. (The Henry Ford Museum)

© 2019, Bryan R. Swopes

8 April 1931

Amelia Earhart with Pitcairn Autogiro Co. PCA-2 #4, X760W, at Pitcairn Field, Warrington, Pennsylvania, 8 April 1931. (Purdue University)
Amelia Earhart with Pitcairn Autogiro Co. PCA-2 #4, NX760W, at Pitcairn Field, Warrington, Pennsylvania, 8 April 1931. (Purdue University)

8 April 1931: Amelia Earhart, flying a Pitcairn PCA-2 autogyro, reached an altitude of 18,415 feet (5,613 meters) ¹ over Warrington, Pennsylvania. The duration of the flight, her second of the day, was 1 hour, 49 minutes. She landed at 6:04 p.m.

A sealed barograph was carried aboard to record the altitude for an official record. Following the flight, the barograph was sent to the National Aeronautic Association headquarters in Washington, D.C., for certification.

08 Apr 1931, Pennsylvania, USA --- Original caption: Miss Amelia Earhart in two altitude tests with an autogiro plane, at the Pitcairn Airfield, Willow Grove, Pa., soars to height of 18,500 feet in the first, and surpasses that mark by 500 feet in the second. If her barographs correspond with those marks, she in all probability will have established a world record for men as well as women. She is the only woman who ever piloted one of the "windmill" types of craft. Photo shows Amelia Earhart handing Major Luke Christopher, her barograph after her first flight. --- Image by © Bettmann/CORBIS
Amelia Earhart, in the cockpit of a Pitcairn PCA-2 autogyro, handing a barograph to Major Luke Christopher, National Aeronautic Association. (© Bettmann/CORBIS)

An autogyro is a rotary wing aircraft that derives lift from a turning rotor system which is driven by air flow (autorotation). Unlike a helicopter, thrust is provided by an engine-driven propeller. The engine does not drive the rotor.

The Pitcairn Autogyro Company’s PCA-2 was the first autogyro certified in the United States. Operated by a single pilot, it could carry two passengers. The fuselage was constructed of welded steel tubing, covered with doped fabric and aluminum sheet.

Amelia Earhart with the Pitcairn PCA-2 aurtogyro, NX760W.
Amelia Earhart with a Pitcairn PCA-2 autogyro.

The PCA-2 was 23 feet, 1 inch (7.036 meters) long, excluding the rotor. The low-mounted wing had a span of 30 feet, 0 inches (9.144 meters), and the horizontal stabilizer and elevators had a span of 11 feet, 0 inches. (3.353 meters). The overall height of the autogyro was 13 feet, 7 inches (4.140 meters). The PCA-2 had an empty weight of 2,233 pounds (1,013 kilograms) and gross weight of 3,000 pounds (1,361 kilograms).

The four-bladed rotor was semi-articulated with horizontal and vertical hinges to allow for blade flapping and the lead-lag effects of Coriolis force. Unlike the main rotor of a helicopter, there was no cyclic- or collective-pitch motion. The rotor system was mounted at the top of a pylon and rotated counter-clockwise, as seen from above. (The advancing blade is on the right.) The rotor had a diameter of 45 feet, 0 inches (13.716 meters). The blades were approximately 22 feet (6.7 meters) long, with a maximum chord of 1 foot, 10 inches (0.559 meters). Each blade was constructed with a tubular steel spar with mahogany/birch plywood ribs, a formed plywood leading edge and a stainless steel sheet trailing edge. They were covered with a layer of very thin plywood. A steel cable joined the blades to limit their lead-lag travel.

The aircraft was powered by an air-cooled, supercharged, 971.930-cubic-inch-displacement (15.927 liter) Wright R-975E Whirlwind 330 nine-cylinder radial engine with a compression ratio of 5.1:1. The R-975E produced a maximum 330 horsepower at 2,000 r.p.m. at Sea Level, burning 73-octane gasoline. The engine turned a two-bladed Hamilton Standard variable-pitch propeller through direct drive. The engine weighed 635 pounds (288 kilograms).

The PCA-2 had two fuel tanks with a total capacity of 52 gallons (197 liters). It also had a 6½ gallon (24.6 liter) oil tank to supply the radial engine.

The PCA-2 had a maximum speed of 120 miles per hour (193 kilometers per hour). It had a service ceiling of 15,000 feet (4,572 meters) and a range of 290 miles (467 kilometers).

Pitcairn Autogyro Co. PCA-2 NX760W at East Boston Airport, October 1930. (Courtesy of the Boston Public Library, Leslie Jones Collection.)
Pitcairn Autogyro Co. PCA-2 NX760W at East Boston Airport, October 1930. (Courtesy of the Boston Public Library, Leslie Jones Collection.)

¹ Most sources state that Earhart set a “world altitude record” on this flight. TDiA checked with the National Aeronautic Association, which certifies aviation records in the United States. NAA has no such record in its files. Fédération Aéronautique Internationale (FAI) records show that Earhart set three world speed records in 1930, and a world distance record in 1932. She is not credited with an altitude record, or any flight record in an autogyro.

© 2019, Bryan R. Swopes