Английская Википедия:Consolidated PT-11
The Consolidated Model 21 was an American two-seat training aircraft built by the Consolidated Aircraft Company. It was used by the United States Army Air Corps with the designation PT-11 and the United States Coast Guard under the designation N4Y.
Design and development
The Model 21 was an aerodynamic cleaned up version of the Model 12/PT-3, one of the distinguishing features being curved instead of angular tail surfaces. The aircraft was a single-engined biplane with fixed tailwheel landing gear and accommodation for two in open cockpits.
Operational history
Designated the PT-11 by the United States Army Air Corps it progressed through a number of trial variants but was not built in large numbers. 11 Examples of the model 21-C were built in Canada as the 21-M for Mexico but none were built for local use.
Variants
- XPT-933
- (Model 21A). Prototype powered by Шаблон:Convert Kinner engine, first flew February 1931.[1]
- YPT-11
- Evaluation aircraft for US Army based on the Model 21A with a Шаблон:Convert Continental R-545-1 engine, four built.[1]
- PT-11A
- One YPT-11 was re-engined with a Шаблон:Convert Curtiss R-600-1 Challenger engine, originally as Y1PT-11A, later converted to PT-11C standard.[1]
- Y1PT-11B
- One YPT-11 was re-engined with a Шаблон:Convert Kinner YR-720-1 engine and designated Y1PT-11B. 5 production aircraft for US Army with another for the United States Coast Guard and designated N4Y-1.[2]
- PT-11C
- PT-11A re-engined with a Шаблон:Convert Lycoming YR-680-1 engine. One or two converted for US Army, with 18 new-build aircraft for Colombia.[3]
- PT-11D
- Production version with Шаблон:Convert R-680-3 engine, originally designated Y1PT-11D. 21 new-built, plus five conversions from Y1PT11-Bs and two from Y1PT-11s.[3]
- PT-12
- A version of the PT-11 with a 300hp R-985-1 engine and detailed changes, ten built later redesignated BT-7.
- Y1BT-6
- One YPT-11 was re-engined with a 300hp R-985-1
- BT-6
- Redesignation of Y1BT-6.
- BT-7
- PT-12 aircraft redesignated.
- XN4Y-1
- Evaluation aircraft for the United States Coast Guard, three built.
- N4Y-1
- One YPT-11B for the USCG, later modified to the same standard as the XN4Y-1
Operators
- Colombian Air Force (PT-11C).
- Paraguayan Air Arm (Model 21-C).
- Mexican Air Force (Model 21-M).
Specifications (PT-11D)
See also
References
Шаблон:Commons category Шаблон:Reflist
Шаблон:USAF trainer aircraft Шаблон:USN trainer aircraft Шаблон:Consolidated aircraft Шаблон:Wright Field project numbers
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