Piper PA-31 Navajo

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Image:Piper PA-31 Navajo St Catharines 1.jpg Image:Piper PA-31 Navajo St Catharines 2.jpg The PA-31 Navajo, also called the Chieftain and Mojave, was designed by Piper Aircraft to fill a gap in their product line; a large twin aircraft using Lycoming engines for the general aviation market was sorely needed in the mid-1960s, and founder W.T. Piper requested the type be developed. Targeted at small-scale cargo and feeder liner operations and the corporate market, the aircraft was a success. It continues to prove a popular choice, but due to greatly decreased demand across the general aviation sector in the 1980s, production of the PA-31 ceased. The Navajo was produced in a variety of versions and a stretched version was called the Navajo Chieftain (PA-31-350).

The pressurized development of the PA-31 series was called the PA-31P Pressurized Navajo; a pressurized, turbine-powered derivative was the PA-31T Cheyenne.

1 Specifications (PA-31-310 Navajo)
2 Specifications (PA-31-350 Chieftain)
3 References
4 External links
5 Related content

[edit] Specifications (PA-31-310 Navajo)

General characteristics<h3>
Crew: 1, possibly 2 depending on regulations operated under
Capacity: 6 passengers
Length: 32 ft 7.5 in (9.95 m)
Wingspan: 40 ft 8 in (12.40 m)
Height: 13 ft 0 in (3.96 m)
Wing area: 229 sq. ft (21.. m²)
Empty weight: 3759 lb (1709 kg)
Useful load: 2741 lb (1246 kg)
Max takeoff weight: 6,500 lb (2,900 kg)

Maximum ramp weight: 6,880 lb (3,130 kg) with BLRI VG System
Maximum (STC) takeoff weight: 6,840 lb (3,110 kg) with BLIRI VG System
Powerplant: 2× Lycoming TIO-540-A , 310 hp (230 kW) each
Propellers: constant speed, controllable pitch, fully feathering, Hartzell propeller
<h3>Performance<h3>
Never exceed speed: 236 knots (272 mph, 437 km/h)
Maximum speed: 188 knots (216 mph, 348 km/h)
Maneuvering speed: 164 knots (188 mph, 304 km/h)
Stall speed: 70 knots (80 mph, 130 km/h)
Minimum controllable speed: 74 knots (85 mph, 137 km/h)
Range: 1,025 nm (1,180 mi, 1,898 km)
Service ceiling: 24,000 ft (7,300 m)

[edit] Specifications (PA-31-350 Chieftain)

General characteristics<h3>
Crew: 1, possibly 2 depending on regulations operated under
Capacity: 8 passengers
Length: ft in (m)
Wingspan: 40 ft 8 in (12.40 m)
Height: 13 ft (3.96 m)
Wing area: 229 ft² (21.28 m²)
Empty weight: 4,003 lb (1,817 kg)
Useful load: 2,533 lb (1,150 kg)
Max takeoff weight: 6,500 lb (3,000 kg)

Maximum Ramp Weight: 6,536 lb (2,967 kg)
Powerplant: 2× Lycoming TIO-540-A2C , 350 hp (260 kW) each
Propellers: with a constant speed, controllable pitch, fully feathering, Hartzell propeller
<h3>Performance<h3>
Never exceed speed: 236 knots (272 mph, 437 km/h)
Maximum speed: 188 knots (216 mph, 348 km/h) indicated
Cruise speed: 178 knots (205 mph, 330 km/h) true
Stall speed: 77 knots (89 mph, 143 km/h) indicated
Range: 1,025 nm (1,180 mi, 1,900 km)
Service ceiling: 24,000 ft (7,300 m)

[edit] References

http://www.airliners.net/info/stats.main?id=311
Piper Navajo Information Manual, Revision 9, March 18th 1994, Piper Aircraft Corporation, Manual Part Number 761-723
Piper Navajo Pilot's Operating Manual, Revision 34, April 22nd 2002, Piper Aircraft Corporation, Manual Part Number 761-456