| Model 75 "Stearman" |
Boeing Stearman N67193 in USN markings
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| Role |
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.
Design
WAVE in a Boeing Stearman N2S US Navy training aircraft.
Boeing Stearman NS1, NAS Pensacola Flight School 1936.
Boeing Stearman E75 (PT-13D) of 1944
The Kaydet was a conventional biplane of rugged construction 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.
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-13D PT-13As equipped with the R-680-17 engine. 318 delivered.
- PT-17 with a Continental R-670 engine.
- PT-17A 18 PT-17s were equipped with blind-flying instrumention.
- PT-17B Three PT-17s were equipped with agricultural spraying equipment for pest-control.
- PT-18 with a Jacobs R-755 engine.
- PT-18A Six PT-18s fitted with blind-flying instrumention.
- PT-26 This designation was given to 300 aircraft supplied under Lend-Lease to the RCAF.
The US Navy had several versions including:
- NS-1 Up to 61 delivered.
- N2S Known colloquially as the "Yellow Peril" from its overall-yellow paint scheme.
- N2S-1 R-670-14 engine. 250 delivered to the US Navy.
- N2S-2 R-680-8 engine. 125 delivered to the US Navy.
- N2S-3 R-670-4 engine. 1,875 delivered to the US Navy.
- N2S-4 99 US Army aircraft were diverted to the US Navy, plus 577 new aircraft were delivered to the US Navy.
- N2S-5 R-680-17 engine. 1,450 delivered to the US Navy.
Operators
 Argentina Bolivia Brazil Canada
 China Colombia Cuba Dominican Republic Greece Guatemala Honduras Israel Mexico Paraguay Philippines
 United States
 Venezuela
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
See also
Comparable aircraft
References
Notes
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.
Videography
- Stearman, Lloyd. Stearmans, You Gotta Love Them. Lap Records, 2005. (NTSC Format)
External links
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USAAC/USAAF/USAF/Tri-service trainer aircraft |
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| Advanced Trainer |
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| Basic Combat |
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| Basic Trainer |
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| Primary Trainer (1924-1948) |
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| Trainer (1948-1990) |
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USN/USMC trainer aircraft designations 1922-1948 |
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Lists relating to aviation |
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