- Consolidated PT-11
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PT-11 
Consolidated Y1PT-11 Role Primary trainer Manufacturer Consolidated Aircraft Company Introduction 1931 Primary users United States Army Air Corps
United States Coast GuardNumber built 30[1] 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
Contents
Development
The Model 21 was an aerodynamic cleaned up version of the Model 12/PT-3, one of the distinguishing features was 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. Designated the PT-11 by the United States Army Air Corps it progressed through a number of trial variants but was not built in.
Variants
- YPT-11
- Evaluation aircraft based on the commercial Model 21 with a 165hp R-540-1 engine, four built.
- PT-11A
- One YPT-11 was re-engined with a 175hp R-600-1 engine, originally as Y1PT-11A, later converted to PT-11C standard.
- Y1PT-11B
- One YPT-11 was re-engined with a 170hp YR-720-1 engine and designated YPT-11B. Another aircraft was diverted to the United States Coast Guard and designated N4Y-1.
- PT-11B
- Production version of the YPT-11 with a 210hp R-720-1 engine, five built
- PT-11C
- One PT-11A re-engined with a 180hp YR-680-1 engine.
- PT-11D
- Production version with 200hp R-680-3 engine, 21 built.
- PT-12
- A version of the PT-11 with a 300hp R-985-1 engine and detailed changes, ten built later re-designated BT-7.
- BT-6
- One YPT-11 was re-engined with a 300hp R-985-1.
- BT-7
- PT-12 aircraft re-designated.
- 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
- Fleet Finch
- Canadian built version of the N4Y (Consolidated Model 21M).
Operators
- Colombian Air Force (PT-11C).
- Paraguayan Air Arm (Model 21 C).
- Mexican Air Force (Model 21M).
Specifications (PT-11D)
Data from "The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)" Orbis Publishing
General characteristics
- Crew: Two
- Length: 26 ft 11 in (8.20 m)
- Wingspan: 31 ft 7 in (9.63 m)
- Height: 9 ft 8 in (2.95 m)
- Wing area: 280 ft² (26.01 m²)
- Empty weight: 1,918 lb (870 kg)
- Max takeoff weight: 2,585 lb (1173 kg)
- Powerplant: 1 × Lycoming R-680A radial piston, 200 hp (149 kW)
Performance
- Maximum speed: 118 mph (190 km/h)
- Service ceiling: 13,700 ft (4175 m)
See also
References
- ^ "U.S. Army Aircraft 1908-1946" by James C. Fahey, 1946, 64pp.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
USAAC/USAAF/USAF/Tri-service trainer aircraft Advanced Trainer Basic Combat Basic Trainer Primary Trainer (1924-1948) Trainer (1948-1990) "T-1", "T-2", "T-3" and "T-6" have also been assigned since 1962 in a separate sequence.USN/USMC trainer aircraft designations 1922-1948 Boeing NB • N2B
Curtiss (NC not assigned) • N2C
Piper Huff-Daland Howard North American Keystone Langley Martin (NM not assigned) • N2M
Naval Aircraft Factory Spartan NP
Fairchild Ryan Stearman New Standard Timm Consolidated Aircraft produced by Consolidated Aircraft Manufacturer designation By role Lists relating to aviation General Aircraft (manufacturers) · Aircraft engines (manufacturers) · Airlines (defunct) · Airports · Civil authorities · Museums · Registration prefixes · Rotorcraft (manufacturers) · TimelineMilitary Accidents/incidents Records Categories:- United States military trainer aircraft 1930–1939
- Consolidated aircraft
- Biplane aircraft
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