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/ Bell TP-39
The TP-39 was a dual seat training version of the P.39 Airacobra.
One P-39F converted as a two-seat training version with additional cockpit added in nose, no armament.
One conversion to a two seat training variant with additional cockpit added in nose – no armament.
Enlarged tail fillet and a shallow ventral fin added.
12 P-39Q-20s converted to two seat trainers.
30 ft 2 in (9.19 m)
34 ft 0 in (10.36 m)
12 ft 5 in (3.78 m)
213 sq ft (19.8 m2)
6,516 lb (2,956 kg)
7,570 lb (3,434 kg)
Max take-off weight
8,400 lb (3,810 kg)
1 × Allison V-1710-85, V-12 liquid cooled piston engine,
1,200 hp (890 kW) at 9,000 ft (2,743 m)
3 bladed constant speed propeller
389 mph (626 km/h, 338 kn)
95 mph (153 km/h, 83 kn) power off,
Flaps and undercarriage down
Never exceed speed
525 mph (845 km/h, 456 kn)
525 mi (845 km, 456 nmi) on internal fuel
35,000 ft (11,000 m)
Rate of climb
3,805 ft/min (19.33 m/s) at 7,400 ft (2,300 m)
(Using emergency power)
Time to altitude
15,000 ft (4,600 m) in 4 minutes 30 seconds, at 160 mph (260 km/h)
34.6 lb/sq ft (169 kg/m2)
0.16 hp/lb (0.26 kW/kg).
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