Tag Archives: Iris Louise McPhetridge Thaden

17 March 1929

Louise Thaden at Oakland Municipal Airport with a Beech Travel Air, 1929. (NASM-SI-83-2145)

17 March 1929: Louise Thaden, flying a Beech Travel Air 3000, NC5426, over Oakland, California, set a new Fédération Aéronautique Internationale (FAI) World Record for Duration, staying aloft for 22 hours, 3 minutes.¹ This flight broke the previous record which had been set five weeks earlier, 10–11 February, by Evelyn (“Bobbie”) Trout—which had broken the record set 2 January 1929 by Elinor Smith.

The Oakland Chapter of the National Aeronautic Association wanted to have all new U.S. records set at Oakland, and Mrs. Thaden’s duration flight was a part of that campaign. Officials from the Oakland NAA group observed her flight in order to certify the record for the international body, the FAI.

Douglas C. Warren’s Travel Air 3000, NC5426, flown by Louise Thaden to set a World Record for Duration, (San Diego Air & Space Museum Archives, Catalog #: 00072288)

The airplane flown by Mrs. Thaden for her duration record was a Travel Air 3000, registration NC5426, serial number 51?. The airplane was modified with an auxiliary fuel tank in the forward cockpit.

The Travel Air 3000 was a single-engine, three-place, single-bay biplane with fixed landing gear. The airplane was 24 feet, 3 inches (7.391 meters) long, with an upper wing span of 34 feet, 8 inches (10.566 meters), and lower span of 28 feet, 8 inches (8.738 meters). The airplane had an overall height of 9 feet, 0 inches (2.743 meters). The 3000 had an empty weight of 1,664 pounds (755 kilograms), and gross weight of 2,590 pounds (1,175 kilograms).

Louise Thaden flying the Travel Air 3000, NC5426, during her duration record attempt, 17 March 1929. The auxiliary fuel tank fills the airplane’s forward cockpit. (San Diego Air & Space Museum, Catalog #: 00072287)

Travel Air biplanes could be ordered with several different air-cooled or water-cooled engines, such as the Curtiss OX-5, the 120 h.p. Fairchild Caminez 4-cylinder radial, or the Wright Whirlwind. The 3000 was equipped with a liquid-cooled, normally-aspirated Hispano-Suiza 8Ac V-8 (according to FAI records). For the record flight the engine was replaced with a “souped-up” engine.

The Travel Air 3000 had a cruise speed of 105 miles per hour (169 kilometers per hour), and a maximum speed of 119 miles per hour (192 kilometers per hour). Its service ceiling was 17,000 feet (5,182 meters), and the maximum range was 400 miles (644 kilometers).

The Travel Air Manufacturing Company built approximately 50 of the “Hisso-powered” Travel Air 3000 variant.

Louise Thaden waves from the cockpit of the Travel Air 3000, NC5426. The forward cockpit has been modified to accept a large auxiliary fuel tank. (San Diego Air & Space Museum, Catalog #: WOF_00343)

The Oakland Tribune reported:

WOMAN FLIER BREAKS RECORD

Oakland Aviatrix Sets World Mark for Endurance Flight

     Mrs. Louise McPhetridge Thaden wants to break more aviation records, she declared at Oakland airport today. Already holder of the altitude record for women and having brought her biplane to earth here yesterday with a new women’s endurance flight record, she now is thinking about establishing new altitude and speed marks for women.

     For 22 hours, 3 minutes and 25 seconds, Mrs. Thaden kept her plane in teh air over Oakland airport yesterday, fighting against drowsiness and night cold to beat the former women’s sustained flight record of 17 hours, 5 minutes, 37 seconds, recently established by Miss Bobby Trout of Los Angeles.

      It was at noon yesterday that Mrs. Thaden signalled to planes flying close to her that her gasoline supply was getting low.. Still she kept circling over the airport while thousands waited on the ground below, eager to see her and greet her when she landed.

12 GALLONS OF GAS REMAIN AT FINISH.

     Mrs. Thaden made one last great circle of the flying field and brought her plane to earth at 1:55 p.m. She taxied her plane to a hangar, where officials of the Oakland chapter, National Aeronautic association, newspaper men and friends waited to welcome her. Examination of the plane showed that only 12 gallons of 196 gallons of gasoline were left.

     As friends helped her out of the cockpit where she had sat in a cramped position without sleep, she smiled and said: “Well, I made it. But, gosh, I’m tired.”

     Thousands who had waited at the Oakland airport since early morning cheered Mrs. Thaden, and police were busy keeping them from crushing her in their desire to see the flier and her record plane.

     Mrs. Thaden was greeted first with a hug and a kiss from Mrs. Hattie V. Thaden, her mother-in-law, who had waited through the long night at the airport, confident that her son’s wife would succeed in her record-seeking attempt.

Oakland Tribune, Vol. CX, No. 77, Monday, 18 March 1929, Page 1, Column 5, and Page 2, Column 2

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.

Iris Louise McPhetridge Thaden (San Diego Air & Space Museum Archives)

Louise McPhetridge had been employed by Walter Beech as a sales representative for his Travel Air Manufacturing Company at Wichita, Kansas, and he included flying lessons with her employment. Beech asked her to go to Oakland as an employee of Douglas C. Warren, the new Travel Air dealer for the western region of the United States. He included flying lessons with her employment. (Warren owned the airplanes used by Mrs. Thaden to set her altitude and endurance records.) She received her pilot’s license from the National Aeronautic Association, signed by Orville Wright, 16 May 1928.

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.²

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

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

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-00196777)

¹ FAI Record File Number 12223

² Thaden had founded the Thaden Metal Aircraft Company, builder of the all-metal Thaden T-1, T-2, and T-4 Argonaut. He 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.

© 2019, Bryan R. Swopes

21 January 1937

Louise Thaden with Beechcraft C17R NC15835. This is probably the airplane with which she set the 21 January 1937 record, serial number C17R-81. There were three C17Rs registered with the number 15835, serial numbers C17R-74, C17R-77 and C17R-81. (Beech Aircraft Corporation)

21 January 1937: Iris Louise McPhetridge Thaden set a U.S. national record flying her Consolidated Blue Beechcraft C17R “Staggerwing,” NC15835 (serial number C17R-81) from Detroit, Michigan, to Akron Municipal Airport, Akron, Ohio, in 40 minutes, 43 seconds. She had departed Detroit, Michigan, at 3:07:17 p.m., Eastern Standard Time (20:07:17 UTC) and crossed overhead Akron at 3:38:00. (20:38:00 UTC).

Great Circle route from Detroit, Michigan, across Lake Erie, to Akron, Ohio. Distance: 127 miles (204 kilometers). (Great Circle Mapper)

Mrs. Thaden Flies Akron-Detroit Route In 40 Minutes; Beats Ray Brown Record

Time Officially Clocked as Plane Hurtles Over Municipal Airport

By Helen Waterhouse

RUSHING through space in her streamlined blue plane yesterday afternoon, Mrs. Louise Thaden, plucky Bendix race winner, broke all previous records between Detroit and Akron.

     The tall Arkansas girl crossed Akron airport just 40 minutes and 43 seconds after leaving Detroit. That constituted an official record, Ray brown, official of the National Aeronautic association, said.

     “Wheels off and over the line, is the timing rule,” said Brown. “While Mrs Thaden did not actually land on the port until almost three minutes later, the time crossing the port is what counts.”

     The ship had accumulated such speed that it far overshot the port, and came roaring back from the east with the thunder of an army bomber.

BEATS BROWN BY TWO MINUTES

     “I beat you by two minutes, Ray,” called the smiling aviatrix as she leaned from the cockpit.

     She was referring to an unofficial record made by Brown last November. At that time Brown made the trip in 42 minutes, but there were no official checkers to record it.

     J.A. McCann and Airport Manager B.E. “Shorty” Fulton served in this capacity with Brown yesterday.

     The girl who has constantly made air records then climbed nimbly from the ship to be greeted by her hostess, Mrs. Brown, and a small crowd of spectators.

     Aside from the fact that her eyes were bloodshot from the wind, she showed no effects of the terrific speed at which she had traveled. “I hardly knew I had been in the air, it was such a short trip,” she laughed.

     Bareheaded when she landed, she jammed a gray sports hat onto her tousled hair as she alighted. She wore a gray flannel dress, gray sports shoes and a belted caracul coat.

BLAMES SELF FOR PASSING PORT

     Lighting one cigaret after another, she upbraided herself for having so far overshot the port.

     “Gosh, I don’t know what my top speed was,” she said. “I was too busy up there. I flew at 5,000 feet all the way.”

     She scanned the lowering clouds. A few drops of rain were falling. “Doubt if I get off for Montreal tomorrow,” she said cheerfully.

     She explained that from Montreal she is flying to the air show in New York City.

     Brown figured that the girl had averaged 160 miles and hour over the 110-mile route.

     “I just thought it would it would be fun to try to beat your record,” Mrs. Thaden said to him.

     After watching her speedy little ship into the Akron Airways hangar, she rode to town with the Browns.

     “Things are definitely picking up in the air industry,” she said. “In the last few months I have flown all over the country, and I see great evidence of the pickup in the industry all along the line.

Akron Beacon Journal, Vol. 98, No. 41, Friday, 22 January 1937, Page 21, at Column 5–7.

[The distance between Detroit Metropolitan Airport (DTW) and Akron Fulton International Airport (AKR) is 127 statute miles (204 kilometers). Mrs. Thaden’s average speed over the course would have been 187.147 miles per hour (301.184 kilometers per hour).]

Just four months, 18 days earlier, Louise Thaden had become the first woman to win the Bendix Trophy Race, flying another Beechraft C17R “Staggerwing,” R15835, 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.¹ [At this time, airplanes in the experimental or restricted categories were prohibited from displaying the U.S. national identifier, the letter N, as they were not allowed to fly outside the United States.]

Beechcraft C17R R15835 (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 Bendix race winning airplane had already been sold to the government of the República de Honduras, but Walter Beech let Louse Thaden and Blanche Wilcox Noyes fly it for the race. It was then returned to the Beechcraft plant for overhaul and repainting, before being flown to Honduras by Paul E. Zimmerman. It was assigned to the Escuela Militar de Aviacion.

Beech had another Beechcraft C17R, serial number C17R-81, and also registered NC15835, built for Louise Thaden in October 1936, the month after the Bendix Trophy Race. After being test flown by Mrs. Thaden, it was delivered to her 12 October 1936. It was painted Consolidated Blue with white trim in the same paint scheme as C17R-77. The interior had blue leather seats with Colonial Blue carpet.

C17R-81 is the airplane that Thaden flew to set the 21 January 1937 record.

The Beechcraft C17R was single-engine, single-bay biplane operated by a single pilot and could carry up to three 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).

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.

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

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).

The rear passenger seats of C17R-81 were removed and a 56 gallon (212 liter) auxiliary fuel tank installed in their place, bringing to total fuel capacity to 121 gallons (458 liters).

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 built for Thaden. FAA records indicate that the first, C17R-74, is currengtly registered N15835.

Mrs. Thaden’s personal C17R, s/n C17R-81, an incomplete restoration, was for sale at auction in November 2023.

Iris Louise McPhetridge, circa 1920 (Butler Center for Arkansas Studies, Central Arkansas Library System)
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 majored in journalism, and played basketball. She was president of the Delta Delta Delta (ΔΔΔ) Sorority, Delta Iota (ΔΙ) Chapter, 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.

Louise Thaden’s 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.

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.

Iris Louise McPhetridge Thaden with her husband, Herbert von Thaden, in front of a Beechcraft C17R Staggerwing, NR15385. (San Diego Air and Space Museum Archives, Catalog #: WOF_00355)

Louise Thaden is credited with having set four Fédération Aéronautique Internationale (FAI) world records.

Mrs. Thaden set an FAI World Record for Altitude of 6,178 meters (20,269 feet) over Oakland, California, 7 December 1928.²

On 17 March 1929, she set an FAI record for duration of 22 hours, 3 minutes, 28 seconds.³

14–22 August 1932 Thaden and Frances Marsalis flew a Curtiss Thrush to set an FAI world record for duation of 196 hours, 5 minutes.⁴

12 July 1936: World Record for Speed Over 100 Kilometers with an average speed of 176.35 kilometers per hour (109.58 miles per hour).⁵

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

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

¹ Please see “This Day in Aviation” at: https://www.thisdayinaviation.com/4-september-1936/

² FAI Record File Number 12221. Please see TDiA for 7 December 1928 at: https://www.thisdayinaviation.com/7-december-1928/

³ FAI Record File Number 12223. Please see TDiA for 17 March 1929 at: https://www.thisdayinaviation.com/17-march-1929/

⁴ FAI Record File Number 12347. Please see TDiA for 14–22 August 1932 at: https://www.thisdayinaviation.com/14-22-august-1932/

⁵ FAI Record File Number 12022. Please see TDiA for 12 July 1936 at: https://www.thisdayinaviation.com/12-july-1936/

© 2024, Bryan R. Swopes

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

14–22 August 1932

Frances Marsalis and Louise Thaden, in the cockpit of the Curtiss Thrush, shortly before takeoff, 14 August 1932. The I.J. Fox Company sponsored their flight. (San Diego Air & Space Museum)

14–22 August 1932: Over an eight-day period, Iris Louise McPhetridge Thaden and Frances E. Carter Harrell Marsalis flew a Curtiss Thrush J, NR9142, over the Curtiss Airport ¹ at Valley Stream, New York. Their flight set a Fédération Aéronautique Internationale (FAI) World Record for Duration of 196 hours, 5 minutes. ²

The pair took off at 1:00 p.m., Sunday, 14 August, and did not land until 5:06 p.m., Monday, 22 August. Newspaper reports at the time were that the total duration was 196 hours, 5 minutes “and four-fifths seconds.”

Their flight was supported by air-to-air refueling. A Curtiss Robin C-1, NR82H, flown by Stewart Reiss and John Runger, acted as the tanker. Seventy-eight in-flight refuelings were required to keep the Thrush airborne.

Curtiss Robin C-1 NR82H refueling Curtiss Thrush NR9142, August 1932.

The “two 24-year-old housewives” were sponsored by the I.J. Fox store on 5th Avenue, New York City, which was owned by philanthropist Isidore Joseph Fox, “America’s Largest Furrier.” Mrs. Fox was an aviation enthusiast who often attended races and other events, and provided prizes. The Thrush had “I.J. FOX” boldly painted on each side of its fuselage, with a smaller name and the company’s fox head logo on the forward doors.

Curtiss Thrush J NC9142 at Floyd Bennett Field. (William F. Yeager Collection, Wright State University ms223_041_043)

NR9142 was the first protototype Curtiss Thrush, s/n G-3. It was initially registered NX9142. In preparation for the endurance flight, the interior had been stripped of the passengers seats and carpet. A 150 gallon (568 liters) auxiliary fuel tank was installed.

The Curtiss Thrush was a single-engine six-place high-wing cabin monoplane with fixed landing gear. It was 32 feet, 7 inches (9.931 meters) long with a wingspan of 48 feet, 0 inches (14.630 meters) and overall height of 9 feet, 3 inches (2.819 meters). The wing had a chord of 7 feet, 0 inches (2.134 meters). The airplane’s empty weight was 2,260 pounds (1,025 kilograms), and its gross weight was 3,800 pounds (1,724 kilograms).

Curtiss Thrush NX9142 with Curtiss Challenger R600-6 engine and cowling; unknown pilot. Compare the early vertical fin and rudder to those in the photograph of NC9142, above. (Curtiss Aeroplane and Motor Company)

The Curtiss Thrush was initially powered by an air-cooled, normally-aspirated, 603.397 cubic-inch-displacement (9.888 liters) Curtiss Challenger R600–6, two-row, 6-cylinder radial engine with a compression ratio of 5.2:1. The engine was rated at 185 horsepower at 2,000 r.p.m. with 65-octane gasoline. The direct-drive engine turned a Curtiss-Reed fixed-pitch propeller, and later, a Turnbull variable-pitch propeller. The R600-6 was 42.63 inches (1.083 meters) long, 41.75 inches (1.060 meters) in diameter, and weighed 445 pounds (202 kilograms).

The second prototype Curtiss Thrush, NX9787, with Challenger R600-6 engine. (NASM-CW8G-T-6172 2)

During flight testing, the Challenger-powered Thrush was disappointingly underpowered. The Curtiss engine was replaced with a Wright J6E Whirlwind, and the airplane designated Thrush J. The J6E, or Wright R-760E Whirlwind 250, was an air-cooled, supercharged, 755.95 cubic inch (12.39 liters) seven-cylinder radial engine with a compression ratio of 5.1:1. It was rated at 250 horsepower at 2,000 r.p.m. at Sea Level for takeoff (1-minute limit) and required 73-octane gasoline. This was also a direct-drive engine. The R-760E weighed 530 pounds (240 kilograms)

Curtiss Thrush prototype with a Wright Whirlwind engine (NASM-CW8G-T-4842-neg

The Curtiss Thrush J had a cruise speed of 104 miles per hour (167 kilometers per hour) and maximum speed of 122 miles per hour (196 kilometers per hour). Its service ceiling was 13,200 feet (4,023 meters) and it had a range of 900 miles (1,448 kilometers).

Thirteen Curtiss Thrush Js were built.

Stewart Reiss (left) and John Runger with air tanker Curtiss Robin C-1 NR82H. (Fédération Aéronautique Internationale)
John Runger, Thaden, Charles S. “Casey” Jones, Curtiss airport manager, Marsalis, Stewart Reiss, post flight (AP)

¹ Formerly Advance Sunrise Airport, purchased by Curtiss 1929; closed 1934.

² FAI Record File Number 12347

© 2018, Bryan R. Swopes

12 July 1936

Louise Thaden with the Porterfield Model 35-W. (FAI)

12 July 1936: Louise Thaden set a Fédération Aéronautique Internationale (FAI) World Record for Speed Over 100 Kilometers with an average speed of 176.35 kilometers per hour (109.58 miles per hour.)¹ She flew a Porterfield Model 35-W Flyabout over a course at Endless Caverns, near New Market, Virginia.

Less than two months later, 4 September 1936, Mrs. Thaden became he first woman to win the Bendix Trophy Race when she and her co-pilot, Blanche Noyes, flew a Beechcraft C17R “Staggerwing,” NR15835, from Floyd Bennett Field, Brooklyn, New York, to Mines Field, Los Angeles, California.

Harmon Aviatrix Trophy (NASM)

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, as a member of the Class of 1927. Miss McPhetridge 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 Wilbur Wright, 16 May 1928. In 1929, she was issued Transport Pilot License number 1943 by the Department of Commerce. McPhetridge was the fourth woman to receive an Airline Transport Pilot rating.

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.

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 flew this Porterfield Model 35-W to set a World Record for Speed, 12 July 1936. (FAI)

The Porterfield Model 35-W was based on the prototype Wyandotte Pup, which had been designed by Noel Ross Hockaday. The airplane was built by students of the aviation club of Wyandotte High School, Kansas City, Kansas.

Noel Hackaday’s Wyandotte Pup, NX12546, circa 1932. The children are identified as Leland and Milton House. (Guy F. House, via Keith House)

Hockaday had previously been a designer for the American Eagle Aircraft Corporation and had designed that company’s Eaglet high-wing monoplane. Edward Everette Porterfield, Jr., the founder of American Eagle, was present when the Wyandotte Pup made its first flight. He bought the airplane and its production rights. American Eagle had gone out of business during the early years of The Depression, and a new company, Porterfield Aircraft Corporation, was formed to manufacture the airplane as the Porterfield Model 35.

The Porterfield Model 35 Flyabout was produced in several variants, and was available with LeBlond, Velle, Warner or Continental engines. It was was a single-engine, high-wing monoplane, which carried a pilot and one passenger in tandem in an enclosed cabin. The airplane had fixed landing gear with a tail skid. The fuselage was a welded tube structure, while the wing was built around two spruce spars, with spruce and plywood ribs. The airplane was covered with doped fabric. A distinctive feature of the Porterfield series are the parallel wing struts. (Most similar aircraft have their struts arranged in a “V”.)

Porterfield Model 35-70 Flyabout, NC 20700, powered by a LeBlond radial engine. (San Diego Air & Space Museum)

The Porterfield Model 35-W was 22 feet, 1 inch (6.731 meters) long, with a wingspan of 32 feet, 0 inches (9.754 meters), and height of 6 feet, 7 inches (2.007 meters). The main wheel tread was 5 feet, 6 inches (1.676 meters). Maximum payload was 501 pounds (227.25 kilograms).

A 1936 Porterfield Model 35-W, NC16401, serial number 301. (San Diego Air & Space Museum)

The Model 35-W was powered by an air-cooled, normally-aspirated, 301.458-cubic-inch-displacement (4.940 liter) Warner Aircraft Corporation Scarab Junior. This was a 5-cylinder radial engine with two valves per cylinder and a compression ratio of 5.2:1. The Scarab Junior was rated at 90 horsepower at 2,050 r.p.m. at Sea Level for takeoff (five-minute limit). The engine was 1 foot, 2 inches (0.356 meters) long, 3 feet, 0.5 inches (0.927 meters) in diameter, and weighed 237 pounds (107.5 kilograms). The engine was covered by a Townend Ring.

The 35-W had a cruise speed of 110 miles per hour (177 kilometers per hour) and maximum speed of 120 miles per hour (193 kilometers per hour). Its range was 340 miles (547 kilometers).

Porterfield Aircraft Corporation built approximately 240 Model 35s. Twenty-five of these were the Model 35-W.

Noel Ross Hockaday was born 24 May 1905 in Kinmundy, Illinois. He was the first of two children of Jake Fred Hockaday, a farmer, and Mary Kathryn Sills Hockaday. He married to Ruby I. Kelley at Los Angeles, 31 March 1937.

In addition to the Eaglet and Pup, Hockaday designed the Rearwin Airplanes Inc., Speedster, Sportster and Cloudster. (Rearwin, like Porterfield, was based at Fairfax Airport, Kansas City, Kansas.)

In 1940, Hockaday worked for the Lockheed Aircraft Corporation. He later formed Hockaday Aircraft Corporation at Burbank, California, to produce the Hockaday Comet.

Noel Ross Hockaday died at Los Angeles, California, 26 May 1959, at the age of 54 years.

Edward Everett Porterfield, Jr., circa 1925. (Airplanes and Rockets)

Edward Everett Porterfield, Jr., was born at Kansas City, Missouri, 7 November 1890. He was the son of Edward Everett Porterfield, Sr.,² a state circuit court judge, and Julia L. Chick Porterfield.

E. E. Porterfield, Jr., was a manager for the New England Equitable Life Insurance Company in Kansas City. On 17 January 1911, he married Miss Margaret Hughes in Nebraska. They would have two sons, both of whom died in infancy. Mrs. Porterfield sued for divorce, charging that she had been abandoned. The divorce was granted and she was awarded $30.00 per month in financial support.

Porterfield enlisted in the United States Army, 4 March 1918, and served as a sergeant with the 314th Trench Mortar Battery, 164th Field Artillery Brigade, 89th Division, American Expeditionary Forces. The division fought at the Battle of St. Mihiel and in the Meuse-Argonne Offensive. The 89th was inactivated following the war. Sergeant Porterfield was honorably discharged, 20 February 1919.

Porterfield’s second wife was Margaret Jellison Porterfield. They also divorced.

In 1925, Porterfield founded the Porterfield Flying School at Richards Field, the first airport for Kansas City, Missouri. In 1928, he founded the American Eagle Aircraft Corporation at Fairfax Airport, Kansas City, Kansas.³

E. E. Porterfield married his third wife, Mildred Shiveley, at Odessa, Missouri, 25 December 1930.

Porterfield later founded the Porterfield Aircraft Corporation in 1932. During World War II, light aircraft production ceased and the company eventually went out of business.

Edward Everett Porterfield, Jr., died at Kansas City, Missouri, 29 August 1948, at the age of 58 years. He was buried at the Mount Washington Cemetery, Independence, Missouri.

Porterfield Model 35-70 Flyabout. (San Diego Air & Space Museum)

¹ FAI Record File Number 12022

² Full Disclosure: Judge Edward Everett Porterfield, Sr., a Kansas state circuit court judge, had an involvement in the infamous Dr. Hyde murders which took place at the Colonel Thomas H. Swope mansion near Independence, Missouri (State of Missouri v. Bennett Clarke Hyde, 1910). Colonel Swope was a distant relative of TDiA.

³ The Kansas City Metropolitan Area is divided by the Missouri River, which is the boundary between the State of Missouri and the State of Kansas. Therefore, there is a Kansas City, Missouri, and a Kansas City, Kansas.

© 2019, Bryan R. Swopes