| 词条 | Consolidated PT-11 | ||||||||||||||||
| 释义 |
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 developmentThe 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 historyDesignated 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
(Model 21A). Prototype powered by {{convert|170|hp|kW|abbr=on}} Kinner engine, first flew February 1931.[3]
Evaluation aircraft for US Army based on the Model 21A with a {{convert|165|hp|kW|abbr=on}} Continental R-545-1 engine, four built.[3]
One YPT-11 was re-engined with a {{convert|175|hp|kW|abbr=on}} Curtiss R-600-1 Challenger engine, originally as Y1PT-11A, later converted to PT-11C standard.[3]
One YPT-11 was re-engined with a {{convert|210|hp|kW|abbr=on}} 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.[4]
PT-11A re-engined with a {{convert|180|hp|kW|abbr=on}} Lycoming YR-680-1 engine. One or two converted for US Army, with 18 new-build aircraft for Colombia.[5]
Production version with {{convert|220|hp|kW|abbr=on}} R-680-3 engine, originally designated Y1PT-11D. 21 new-built, plus five conversions from Y1PT11-Bs and two from Y1PT-11s.[5]
A version of the PT-11 with a 300hp R-985-1 engine and detailed changes, ten built later redesignated BT-7.
One YPT-11 was re-engined with a 300hp R-985-1
Redesignation of Y1BT-6.
PT-12 aircraft redesignated.
Evaluation aircraft for the United States Coast Guard, three built.
One YPT-11B for the USCG, later modified to the same standard as the XN4Y-1 Operators
Specifications (PT-11D){{aircraft specifications|plane or copter?= plane |jet or prop?= prop |ref="The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)" Orbis Publishing |crew= two |capacity= |payload main= |payload alt= |length main= 26 ft 11 in |length alt= 8.20 m |span main= 31 ft 7 in |span alt= 9.63 m |height main= 9 ft 8 in |height alt= 2.95 m |area main= 280 ft² |area alt= 26.01 m² |airfoil= |empty weight main= 1,918 lb |empty weight alt= 870 kg |loaded weight main= |loaded weight alt= |useful load main= |useful load alt= |max takeoff weight main= 2,585 lb |max takeoff weight alt= 1173 kg |more general= |engine (prop)= Lycoming R-680A |type of prop= radial piston |number of props= 1 |power main= 200 hp |power alt= 149 kW |power original= |max speed main= 118 mph |max speed alt= 190 km/h |cruise speed main= |cruise speed alt= |stall speed main= |stall speed alt= |never exceed speed main= |never exceed speed alt= |range main= |range alt= |ceiling main= 13,700 ft |ceiling alt= 4175 m |climb rate main= |climb rate alt= |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |more performance= |armament= |avionics= }} See also
References{{commons category|Consolidated PT-11}}1. ^"U.S. Army Aircraft 1908-1946" by James C. Fahey, 1946, 64pp. 2. ^http://aerofiles.com/_fleet.html 3. ^1 2 Wegg 1990, p. 64. 4. ^Wegg 1990, p. 65. 5. ^1 Wegg 1990, pp. 64–65.
4 : Consolidated aircraft|United States military trainer aircraft 1930–1939|Single-engined tractor aircraft|Biplanes |
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