Boeing-Stearman Model 75
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| Model 75 "Stearman" | |
|---|---|
 Boeing Stearman N67193 in USN markings |
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| Type | Biplane Trainer |
| Manufacturer | Stearman / Boeing |
| Number built | 8584 |
The Stearman (Boeing) Model 75 is a biplane, of which 8584 were built in the United States during the 1930s and 1940s as a military trainer aircraft. Stearman became a subsidiary of Boeing in 1934. Widely known as the Stearman, Boeing Stearman or Kaydet, it served as a Primary trainer for the USAAF, as a basic trainer for the USN (as the NS1 & N2S), and with the RCAF as the Kaydet throughout World War II. After the conflict was over, thousands of surplus aircraft were sold on the civil market. In the immediate post-war years they became popular as crop dusters and as sports planes.
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[edit] Design
The Kaydet was of rugged construction, and conventional biplane design with large, fixed tailwheel undercarriage, and accommodation for the student and instructor in open cockpits in tandem. The radial engine was usually uncowled, although some Stearman operators choose to cowl the engine, most notably the Red Baron Stearman Squadron.
[edit] Variants
The US Army Air Forces Kaydet had three different designations based on its power plant:
- PT-13, with a Lycoming R-680 engine,
- PT-13 Initial production. R-680-B4B engine. 26 built. Boeing Model 75.
- PT-13A R-680-7 engine. 92 delivered 1937-38. Model A-75.
- PT-13B R-680-11 engine. 255 delivered 1939-40.
- PT-13C Six PT-13Bs modified for instrument flying.
- PT-17 with a Continental R-670 engine, and
- PT-18 with a Jacobs R-755 engine.
The US Navy had several versions including:
- NS-1 Up to 61 delivered.
- N2S
[edit] Operators
Argentina
Bolivia
Brazil
Canada
China
Colombia
Cuba
Dominican Republic
Greece
Guatemala
Honduras
Israel
Mexico
Paraguay
Philippines
[edit] Specifications (PT-17)
Data from {name of first source}
General characteristics
- Crew: two, student and instructor
- Length: 24 ft 3 in (7.39 m)
- Wingspan: 32 ft 2 in (9.81 m)
- Height: 9 ft 2 in (2.79 m)
- Empty weight: 1,936 lb (878 kg)
- Max takeoff weight: 2,717 lb (1,232 kg)
- Powerplant: 1× Continental R-670-5, 220 hp (164 kW)
Performance
- Maximum speed: 124 mph (198 km/h)
- Range: 505 mi (808 km)
- Service ceiling 11,200 ft (3,415 m)
[edit] See also
Comparable aircraft
[edit] References
[edit] Notes
[edit] Bibliography
- Avis, Jim and BowmaN, Martin. Stearman: A Pictorial History. Motorbooks, 1997. ISBN 0-76030-479-3.
- Phillips, Edward H. Stearman Aircraft: A Detailed History . Specialty Press, 2006. ISBN 1-58007-087-6.
[edit] Videography
- Stearman, Lloyd. Stearmans, You Gotta Love Them. Lap Records, 2005. (NTSC Format)
[edit] External links
Interview with Boeing PT-17 air show pilot John Mohr.
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