Daily Archives: July 11, 2017

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.

National Harmon Trophy

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.

She was awarded the national Harmon Trophy as Champion Aviatrix of the United States for 1936.

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 Wilbur Wright, 16 May 1928. In 1929, she was issued Transport Pilot License number 1943 by the Department of Commerce. She 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 and 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 and 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 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.

Porterfield Model 35-70 Flyabout. This airplane appears to have the same striping pattern as the airplane photographed with Louise Thaden, above. (San Diego Air and Space Museum)

Noel Ross Hockaday was born 24 May 1905 in Marion County, Illinois. He was the first of two children of Jake Fred Hockaday, a farmer, and Mary Kathryn Sills Hockaday. He was married to Ruby I. Kelley (18 May 1905–1 January 1952).

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.)

Hockaday 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 Knsas 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 and 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.

© 2017, Bryan R. Swopes

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11 July 1935

Laura Ingalls in the cockpit of her Lockheed Orion 9D Special, NR14222, warming up its engine at Floyd Bennett Field, 10 July 1935. (Rudy Arnold)
Laura Ingalls in the cockpit of her Lockheed Orion 9D Special, NR14222, warming up its engine at Floyd Bennett Field, 10 July 1935. (Rudy Arnold)

11 July 1935: At 5:31 a.m., Eastern Daylight Time, (01:31 UTC) Laura Houghtaling Ingalls took off from Floyd Bennett Field, Brooklyn, New York, and flew non-stop across the North American continent to the Union Air Terminal, Burbank, California. She landed there at 8:51 p.m., Pacific Daylight Time (19:31 UTC). Her airplane was a single-engine Lockheed Model 9D Orion, registration NR14222, which she had named Auto da Fé (“act of faith” or “act of penance”).

Ingalls was the first woman to fly across the country from East to West. In 5 October 1930, she flew a de Havilland DH.60 Gipsy Moth from Roosevelt Field to Grand central Air Terminal at Glendale Calif, arriving 9 October. The flight required nine fuel stops, and took 30 hours and 27 minutes over four days.

The elapsed time of her non-stop 1935 transcontinental flight was 18 hours, 20 minutes, 30 seconds.

Laura Ingalls had taken delivery of the Orion 9D Special at Lockheed, Burbank, California, five months earlier. Contemporary newspaper reports said that the “Black Mystery Ship” cost $45,000.

Laura Houghtaling Ingalls' Lockheed Orion 9D Special, NR14222 (San Diego Air and Space Museum Archives)
Laura Houghtaling Ingalls’ Lockheed Orion 9D Special, NR14222 (San Diego Air and Space Museum Archives)

The Lockheed Model 9 Orion was a single-engine, low-wing monoplane, designed in 1931 by Gerard Vultee for airline use and was capable of carrying six passengers in an enclosed cabin. The Orion was the first commercial airliner with retractable landing gear and was faster than any military airplane in service at the beginning of the decade. Like other Lockheed aircraft of the time, it was constructed of strong, light-weight, molded plywood, but the Orion was Lockheed’s last wooden airplane.

Billy Parker, Laura Ingalls and Wiley Post at the 1935 National Air Races. Ingall's Lockheed Orion 9D, NR14222, Auto da Fé, has its engine cowling removed for maintenance. (Monash University)
Billy Parker, Laura Ingalls and Wiley Post at the 1935 National Air Races. Ingall’s Lockheed Orion, NR14222, Auto da Fé, has its engine cowling removed for maintenance. (Monash University)

The Lockheed Orion 9D was 28 feet, 4 inches (8.64 meters) long with a wingspan of 42 feet, 9¼ inches (13.04 meters) and height of 9 feet, 8 inches (2.95 meters). It had an empty weight of 3,640 pounds (1,651 kilograms) and maximum takeoff weight of 5,200 pounds (2,359 kilograms).

Auto da Fé was powered by an air-cooled, supercharged, 1,343.804-cubic-inch-displacement (22.021 liter) Pratt & Whitney Wasp S1D1 nine-cylinder radial engine, rated 525 horsepower at 2,200 r.p.m. (takeoff and normal power rating). The engine had a compression ratio of 6:1. The S1D1 was a direct-drive engine, which turned a two-bladed Hamilton Standard variable-pitch, constant-speed propeller. The Wasp S1D1 was 4 feet, 3.438 inches (1.307 meters) in diameter, 3 feet, 6.625 inches (1.083 meters) long and weighed 763 pounds (346 kilograms).

The cruise speed of the Orion was 205 miles per hour (330 kilometers per hour) and the maximum speed was 220 miles per hour (354 kilometers per hour) at Sea Level. It had a range of 750 miles (1,159 kilometers) in standard configuration. The service ceiling was 22,000 feet (6,705 meters).

Laura Ingalls shows navigation equipment to be installed aboard her Lockheed Orion. (Corbis)

Ingall’s airplane carried 630 gallons (2,384.8 liters) of gasoline and 40 gallons (151.4 liters) of engine oil. NR14222 was equipped with a Sperry Gyro Pilot and a Westport radio compass and receiver for navigation.

After departing Floyd Bennett Field, Ingalls flew along a commercial airway marked with radio beacons. Her route of flight was from Brooklyn, New York to Pittsburgh, Pennsylvania—Columbus, Ohio—Indianapolis, Indiana—Kansas City, Missouri—Albuquerque, New Mexico—Burbank, California. This was only the third time that a non-stop transcontinental flight had been accomplished.

Laura H. Ingalls stands in front of her Lockheed Orion 9D, NR14222, in this personally inscribed photograph.
Laura H. Ingalls stands in front of her Lockheed Orion 9D Special, NR14222, in this personally inscribed photograph. (San Diego Air and Space Museum Archives)

 

© 2017, Bryan R. Swopes

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