Douglas DC-7 - Variants

Variants

DC-7

Production variant, 105 built.

DC-7B

First long range-variant with increased gross weight and increased fuel capacity, with most of the additional fuel in saddle tanks formed by extending the engine nacelles, although not all the aircraft had the additional fuel capacity, 112 built.

DC-7C Seven Seas

Improved long-range variant with a non-stop transatlantic capability, improved 3400hp (2540kW) R-3350 engines and increased fuel capacity mainly in longer wings, 121 built.

DC-7D

Unbuilt variant with Rolls-Royce Tyne turboprop engines.

DC-7F

Freight conversion of all three variants with two large freight doors.