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/ Lockheed C-69 Constellation
Lockheed C-69 Constellation
The Lockheed C-69 Constellation was a four engined, propeller-driven military transport aircraft developed during World War Two.
Variants
XC-69
Unpressurized prototype version, One built.
C-69
Initial troop transport version, 13 built.
Seven others were under construction, but converted to L-049 airliners while still on the assembly line.
C-69A
Troop transport with a different internal layout than the C-69,
None built
C-69B
Long range troop and cargo transport with a cargo door on the left, None built.
Company designation L-349.
C-69C
VIP transport version based on the initial C-69.
One built, Company designation L-549.
C-69D
VIP transport with different engines with extra oil and fuel tanks,
None built.
XC-69E
Prototype XC-69 converted to use four Pratt & Whitney R-2800 radial engines in place of the original R-3350 for testing purposes.
Specifications
Crew
4
Length
95 ft 2 in (29.01 m)
Wingspan
123 ft (37 m)
Height
22 ft 5 in (6.83 m)
Wing area
1,650 sq ft (153 m2)
Airfoil
Root
NACA 23018
Tip
NACA 4412
Empty weight
50,000 lb (22,680 kg)
Max take-off weight
72,000 lb (32,659 kg)
Powerplant
4 × Wright R-3350-35 Duplex-Cyclone 18-cylinder air-cooled radial piston engines, 2,200 hp (1,600 kW) each
Propellers
3-bladed constant-speed propellers
Performance
Maximum speed
330 mph (530 km/h, 290 kn) at 10,000 ft (3,048 m)
Cruise speed
227 mph (365 km/h, 197 kn)
Range
2,400 mi (3,900 km, 2,100 nmi)
Service ceiling
25,030 ft (7,630 m).
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