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Boeing-Stearman N2S-3 Kaydet
United States — USN WW II Biplane Primary Trainer
Archive Photos 1
Boeing-Stearman N2S-3 Kaydet (N58072, s/n 75-596, Model A75) on display (4/27/1985) at the 1985 MCAS El Toro Airshow, MCAS El Toro, California (Photos by John Shupek)
1941 Boeing-Stearman N2S-3 Kaydet (N53153, s/n 75-731, 1941, Model A75N1) on display (1/7/2006) at the 2006 Cable Air Show, Cable Airport, Upland, California (Photos by John Shupek)
1943 Boeing-Stearman N2S-3 Kaydet (N90840, s/n 75-1619, 1943, Model A75N1) on display (7/6/2006) at the 2006 Cable Air Show, Cable Airport, Upland, California (Photos by John Shupek)
1943 Boeing-Stearman N2S-3 Kaydet (N90840, s/n 75-1619, 1943, Model A75N1) on display (7/16/2000) at the 2000 Torrance Airshow, Zamperini Field, Torrance, California (Photos by John Shupek)
1943 Boeing-Stearman N2S-3 Kaydet (N5580M, s/n 75-7755, 1943, Model B75N1) on display (1/7/2006) at the 2006 Cable Airshow, Cable Airport, Upland, California (Photos by John Shupek)
Boeing-Stearman N2S-3 Kaydet (N68238, s/n 75-7774, 1943, Model B75N1) on display (11/10/2007) at the 2007 Aviation Nation Airshow, Nellis AFB, Las Vegas, Nevada (Photos by John Shupek)
1943 Boeing-Stearman N2S-3 Kaydet (N5114N, s/n 75-7721, 1943, Model B75N1) on display (c.1992) at the 1992 Hawthorne Air Faire, Hawthorne, California (Photos by John Shupek)
1943 Boeing-Stearman N2S-3 Kaydet (N30840) on display (c.1992) at the 1992 Hawthorne Air Faire, Hawthorne, California (Photos by John Shupek)
Boeing-Stearman N2S-3 Kaydet (N58072, s/n 75-596, Model A75) on display (c.1987) at the 1987 MCAS El Toro Air Shows, MCAS El Toro, California (Photos by John Shupek)
Boeing-Stearman N2S-3 Kaydet (N58072, s/n 75-596, Model A75) on display (c.1988) at the 1988 MCAS El Toro Air Shows, MCAS El Toro, California (Photos by John Shupek)
1941 Boeing-Stearman N2S-3 Kaydet Dragon Lady&rdquo (N57444, s/n 75-166, Model IB75A) on display (4/4/2002) at the Pearson Air Museum, Vancouver, Washington (Photos by John Shupek)
Overview 2
The Stearman (Boeing) Model 75 is a biplane, of which 10,346 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 (PT) 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 World War II, 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.
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.
The first service training version of the Stearman Model 75 was the PT-13 (Lycoming R-680-5 engine) which was ordered by the Army in 1935. Then followed the PT-17 (Continental R-670-5 engine) in 1940, the PT-18 (Jacobs R-7554 engine) and the PT-27. All were similar, except for the engines fitted and certain minor equipment charges, with the exception of the PT-27 that was built for use in Canada. The PT-27 had the same airframe and power plant as the PT-17 but was fitted with cockpit enclosures and heating, night-flying equipment, blind-flying hood and instruments, etc.
Of the U.S. Navy versions, the N2S-1 and N2S-4 (Continental R-670-4 engine) are similar to the PT-17, the N2S-2 (Lycoming R-680-8 engine) is similar to the PT-13A, the N2S-3 (Continental R-670-4 engine) is similar to the PT-17A, and the N2S-5 (Lycoming R-680 engine) is identical to the PT-13D, these last two aircraft eventually being standardized for unified production for both services.
Production of the Kaydet was completed in February 1945, after 10,346 had been built.
Variants 2
The US Army Air Forces Kaydet had three different designations based on its power plant:
The US Navy had several versions including:
Operators 2
Survivors 2
A considerable number of Boeing-Stearmans remain in flying condition throughout the world, as the type remains a popular sport plane and warbird.
Specifications and Performance Data (Model 75) 3
Type
Wings
Fuselage
Tail Unit
Landing Gear
Power Plant
Accommodation
Dimensions
Weights and Loadings
Performance
References