Piper PA-36
-Pratibha Mishra
Role-Agricultural aircraft
Manufacturer-Piper Aircraft
First flight-5 December 1969
Introduction-1973
Produced-1973-1981
Number built-938 (Piper-built)
Piper announced in 1972 a completely new version of the PA-25 Pawnee agricultural aircraft which introduced a more powerful Continental Tiara 6-285 flat-six engine of 213kW, a new cantilever wing, new safety features, filtration of the air entering the pilot's ventilated and heated cockpit, and a larger standard chemical hopper of 0.85m3 or, optionally, 1.08m3 capacity. Designated Piper PA-36 Pawnee Brave, the new model began to enter service in 1973, and in 1977 an additional version with a 224kW Avco Lycoming IO-540-K1G5 engine became available, the designations of these two aircraft then becoming PA-36 Pawnee Brave 285 and PA-36 Pawnee Brave 300. In 1978 this latter aircraft became the standard model, a new PA-36 Pawnee Brave 375 being introduced with a 280kW Avco Lycoming IO-720-D1CD flat-eight engine, and equipped with the larger of the two chemical hoppers as standard. These were to remain in production with Piper until rights for both versions of the PA-36 were acquired by WTA Inc. in 1981. This latter company was marketing this agricultural aircraft in two versions, the version with the 280kW engine now being the basic model and redesignated PA-36 New Brave 375. It was available optionally with a 298kW IO-720-D1C engine under the designation PA-36 New Brave 400.
Type-
Agricultural aircraft
History-
The PA-36 Pawnee Brave was designed in the late 60s at the company's Vero Beach facility as a larger aircraft than Piper's first purpose-designed agricultural aircraft, the PA-25 Pawnee, although of the same overall configuration.
The result of Piper research on PA-25 Pawnee operations, the first PA-36 prototype, the PA-36-260 Pawnee II, was powered by a 195kW (260hp) Lycoming O-540-E engine, and made the first flight on November 17, 1969. The Lycoming engine was later in the development program replaced by a 210kw (285hp) Continental Tiara 6-285 engine, and the aircraft became the PA-36-285. A second prototype had the same engine, and Piper decided to use this engine for the series production.
The PA-36 has a welded chrome-molybdenum steel tube fuselage structure with metal underskins and plastics side panels, and a sturdy overturn pylon is part of the structure. The wings have a conventional two-spar structure, with light alloy laminated spars, and light alloy covering, except for glassfibre leading-edges and wingtips. A hopper with a capacity of 30 or 38 cu.ft is in front of the pilot.
In mid 1972 the PA-36-285 received FAA approval, and in 1973 production got under way, while at the same time the name was changed from Pawnee II to Pawnee Brave.
DESIGN AND DEVELOPMENT-
The PA-36 was first announced in 1972 as a new version of the PA-25 Pawnee with a more powerful 285 hp Continental Tiara 6-285 flat six engine. The aircraft had a new wing, improved ventilation and heating system, and a larger standard hopper of 30 ft³ (0.85m³). An optional 38 ft³ (1.08 m³) hopper was also available. The type entered service in 1973.
In 1977 a new version the PA-36 Pawnee Brave 300 became available with a 300 hp (224 kW) Avco Lycoming IO-540-K1G5 engine. The original aircraft was redesignated the PA-36 Pawnee Brave 285. In 1978 the Brave 300 became the standard model and another more powerful model was introduced, the PA-36 Brave 375 with a 375 hp (280 kW) Avco Lycoming IO-720-D1CD flat-eight engine.
In 1981 Piper sold the rights in the design to WTA Incorporated, who marketed two versions from 1982 with 375 hp and 400 hp (298 kW) engines as the New Brave 375 and New Brave 400 respectively. It had built a total of 150 New Braves by 1987.
Technical Specifications-
MODEL:-PA-36 Pawnee Brave 300 Type
CREW:-1
ENGINE:-1 x Avco Lycoming IO-540-K1G5 flat-six piston engine, 224kW
WEIGHTS:-
Take-off weight 1996 kg 4400 lb
Loaded weight 989 kg 2180 lb
DIMENSIONS:-
Wingspan 11.89 m 39 ft 0 in
Length 8.34 m 27 ft 4 in
Height 2.29 m 8 ft 6 in
Wing area 20.96 m2 225.61 sq ft
PERFORMANCE:-
Cruise speed 229 km/h 142 mph
Ceiling 1950 m 6400 ft
Range 740 km 460 miles
VARIANTS-
PA-36 Pawnee II
Prototype powered by a 260hp Lycoming engine
PA-36-285 Pawnee Brave
Production version, powered by a 285 hp Continental Tiara 6-285 piston engine.
PA-36-300 Pawnee Brave 300
Pawnee Brave with a 300 hp Avco Lycoming IO-540-K1G5 engine, from 1978 named the Brave 300.
PA-36-375 Brave 375
Variant with a 375 hp Avco Lycoming IO-720-D1CD engine.
PA-36 New Brave 375
WTA-built variant powered by a 375 hp piston engine.
PA-36 New Brave 400
WTA-built variant powered by a 400 hp piston enigne.
The PA-36 Pawnee Brave was designed in the late 60s at the company's Vero Beach facility as a larger aircraft than Piper's first purpose-designed agricultural aircraft, the PA-25 Pawnee, although of the same overall configuration.
The result of Piper research on PA-25 Pawnee operations, the first PA-36 prototype, the PA-36-260 Pawnee II, was powered by a 195kW (260hp) Lycoming O-540-E engine, and made the first flight on November 17, 1969. The Lycoming engine was later in the development program replaced by a 210kw (285hp) Continental Tiara 6-285 engine, and the aircraft became the PA-36-285. A second prototype had the same engine, and Piper decided to use this engine for the series production.
The PA-36 has a welded chrome-molybdenum steel tube fuselage structure with metal underskins and plastics side panels, and a sturdy overturn pylon is part of the structure. The wings have a conventional two-spar structure, with light alloy laminated spars, and light alloy covering, except for glassfibre leading-edges and wingtips. A hopper with a capacity of 30 or 38 cu.ft is in front of the pilot.
In mid 1972 the PA-36-285 received FAA approval, and in 1973 production got under way, while at the same time the name was changed from Pawnee II to Pawnee Brave.
As the Continental Tiara engine was quite problematic, Piper certificated a 225kW (300hp) Lycoming IO-540 powered version, the PA-36-300, which replaced the Tiara engined version on the production line from the 1977 model year. From the 1978 model year, the name Pawnee Brave was changed to Brave 300.
A more powerful version was available from 1978, powered by a 280kW (375hp) Lycoming IO-720 in a restyled cowling, as the Brave 375, and from 1982 the 300kW (400hp) IO-720 powered Brave 400 followed.
Pawnee Brave production ceased in January 1983.
POWERPLANTS:-
PA-36-285 - One 210kW (285hp) Continental Tiara 6-285 flat-six, driving a Hartzell two blade (optional three blade) constant speed prop.
PA-36-300 - One 225kw (300hp) Lycoming IO-540-K1G5 fuel injected flat-six, driving a Hartzell two blade (optional three blade) constant speed prop.
PA-36-375 - One 280kW (375hp) Lycoming IO-720-DICD fuel injected flat-eight driving a three blade constant speed Hartzell prop.
PRODUCTION
Total PA-36 production 926.
Regards,
Pratibha Mishra [B.Tech ]
Web Developer / Blog Master
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