Lockheed C-121 Constellation

The Lockheed C-121 Constellation is a military transport version of the Lockheed Constellation.

A total of 332 aircraft were constructed for both the United States Air Force and United States Navy for various purposes.

Variants

L-1049A

Manufacturer’s designation for the WV-2, WV-3 and RC-121D.

L-1049B

Manufacturer’s designation for the R7V-1, RC-121C and VC-121E.

L-1049F

Manufacturer’s designation for the C-121C with strengthened Landing Gear.

EC-121 College Eye

AEW&C aircraft used in the Vietnam War.

Specifications

Crew

5 

Capacity

47-106 Passengers

Length

113 ft 7 in (34.62 m)

Wingspan

123 ft (37 m)

Height

24 ft 9 in (7.54 m)

Wing area

1,650 sq ft (153 m2)

Airfoil

Root

NACA 23018

Tip

NACA 4412

Empty weight

69,000 lb (31,298 kg)

Max take-off weight

120,000 lb (54,431 kg)

Powerplant

4 × Wright R-3350 972-TC-18DA-1 Duplex-Cyclone 18-cylinder air-cooled radial piston engines, 3,250 hp (2,420 kW) each

Propellers

3-bladed constant-speed feathering propellers

Performance

Maximum speed

330 mph (530 km/h, 290 kn)

Cruise speed

304 mph (489 km/h, 264 kn)

Range

5,150 mi (8,290 km, 4,480 nmi)

Service ceiling

25,700 ft (7,800 m).