St. Louis YPT-15

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YPT-15
St Louis XPT-15.jpg
Role Primary trainer
National originUnited States
Manufacturer St. Louis Aircraft Corporation
Introduction1940
Primary user United States Army Air Forces
Number built14
Developed from St. Louis PT-1W

The St. Louis YPT-15 was an American two-seat primary training biplane, built by the St. Louis Aircraft Corporation for use by the United States Army Air Corps. 13 examples of the type were acquired, serving in the late 1930s.

Contents

Design and development

The PT-15 was a development of the "off-the-shelf" PT-1W for use by the U.S. Army Air Corps, ordered for stop-gap duty in the training of airmen in the build-up to World War II. The wings were fabric covered, but the fuselage was aluminum covered. A single Wright R-760 radial engine of 220 horsepower (160 kW) provided power. [1]

Operational history

One prototype PT-1 crashed at Wright field trials on 23 May 1936 bearing the serial number of an older design, the St. Louis PT-35 [2] All thirteen examples of the YPT-15 were locally assigned (as PT-15s) to Parks College Civilian Pilot Training Program. [3] [4] The PT-15 was the only St. Louis design ever acquired by the Army Air Corps. [1]

Variants

XPT-15 (St. Louis Model PT-1, and PT-1W replacement prototype)
One Model PT-1W obtained for evaluation with a 235 hp Wright Whirlwind R-760ET. [5]
YPT-15 (St. Louis Model PT-2)
13 pre-production aircraft with changes to instrumentation, 285hp Wright Whirlwind R-760E-1, and larger rudder. Later designated PT-15. [5]

There is at least one YPT-15 still in existence. It is located at the Western Antique Aeroplane & Automobile Museum in Hood River, Oregon and is maintained in airworthy condition.

Specifications (PT-15)

Data from [6]

General characteristics

Performance

See also

Aircraft of comparable role, configuration, and era

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References

Notes
  1. Jane's All the World's Aircraft 1942 has the engine type as a 225 hp 7- cylinder Whirlwind R-460-ET but this type number appears to be an error; the other sources give the type used here
Citations
  1. 1 2 Waters 1985, p.50.
  2. David W Ostrowski. "The St. Louis Aircraft Company". Skyways: 54.
  3. "The Aviation Enterprises of Oliver Parks". Gateway News. November 1990.
  4. "Accident Report Parks Air College". Archived from the original on 19 October 2011. Retrieved 1 March 2012.
  5. 1 2 3 Andrade, John (1979). U.S.Military Aircraft Designations and Serials since 1909. Midland Counties Publications. p. 158. ISBN   0-904597-22-9.
  6. Jane's All the World's Aircraft 1942 page 215c
  7. Illustrated Encyclopedia of Aircraft
  8. Fahey page 36
Bibliography