Rolls-Royce Dart
Description

The Rolls-Royce RB.53 Dart is a long-lived British turboprop engine designed, built and manufactured by Rolls-Royce Limited. First produced in the late 1940s, it powered the first Vickers Viscount maiden flight in 1948, and was still in production until the last F27s and H.S 748s were produced in 1987. Following the company convention for naming gas turbine engines after rivers, this turboprop design was named after the River Dart.

General characteristics

  • Type: Turboprop
  • Length: 97.6 in (2,480 mm)
  • Diameter: 37.9 in (960 mm)
  • Dry weight: 1,207 lb (547 kg) (dry)

Performance

  • Maximum power output: 1,815 ehp (1,354 kW) (1,630 shp (1,220 kW)) at 15,000 rpm
  • Overall pressure ratio: 5.62:1
  • Specific fuel consumption: 0.581 lb/ehp/hr
  • Power-to-weight ratio: 1.35 shp/lb (2.48 kW/kg)

Components

  • Compressor: Two-stage centrifugal compressor
  • Combustors: 7 straight-flow combustion chambers with ignitors in No 3 and 7 chambers
  • Turbine: 3-stage axial turbine
  • Fuel type: Kerosene
  • Oil system: Self contained, 25 pint (14 L) capacity oil tank