Vickers Viscount - Variants

Variants

Type 630

First prototype, with short fuselage (74 ft 6 in (22.71 m), accommodating 32 passengers and powered by four 1,380 ehp (1,032 kW) Rolls-Royce Dart R.Da Mk 501 engines.

Type 663

Second prototype, testbed for Rolls-Royce Tay turbojet.

Type 640

Planned third prototype, to be powered by four Napier Naiad turboprops. Not built, with parts incorporated in Type 700 prototype.

Type 700

The first production version, 1,381 hp (1,030 kW) engines, 287 built, the "D" suffix was used for aircraft powered by the 1,576 hp (1,175 kW) Dart 510 engines.

Type 800

Improved variant with fuselage extended by 3 ft 10 in (1.2 m), 67 built

Type 810

Improved longer-range variant with 1,991 hp (1,485 kW) Dart 525 engines, 84 built