Dowty-Rotol R130 Propeller


Display Status:

This object is on display in the Boeing Aviation Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Dowty-Rotol R130 Propeller

Collection Item Summary:

Rotol introduced the R130 propeller for the Vickers Viscount airliner in 1954. The R130’s electrically-actuated hub mechanism and square-tipped aluminum alloy blades were a departure from Rotol’s previous hydraulic and composite designs of World War II. The thin, rectangular blades were designed to absorb high energy and efficiently turn it into thrust while offsetting compressibility losses. The electric constant-speed mechanism dated back to when Rotol licensed the American Curtiss Electric design in 1937.

Four R130 propellers and Rolls-Royce Dart Mk. 510 turboprop engines powered the 700D and 800 series of the Vickers Viscount, the first turboprop airliner to enter passenger service, beginning with British European Airways and eventually serving airlines throughout the world. Rotol’s parent companies, Rolls-Royce and Bristol, sold Rotol to the Dowty Group in 1958.

Collection Item Long Description:

Inventory Number


Physical Description

  • Model: R 130/4-20-4/12 E
  • Type: Electric constant-speed, full-feathering, and reversible
  • Number of Blades: Four aluminum alloy blades and steel hub
  • Diameter: 10 ft (3.04 m)
  • Weight: 132.5 kg (292 lbs)
  • Engine Application: Rolls-Royce Dart Mk. 510 turboprop engine rated at 1,298 kW (1,740 shp)
  • Manufacturer: Dowty Propellers, Gloucester, England, 1950s

Credit Line

Gift of United Air Lines.


Country of Origin

United Kingdom


Aluminum alloy, Steel, Paint, Rubber, Plastic, Adhesive, Paper


  • Rotor/Propeller: 304.8 × 28.6 × 45.7 × 63.5cm (10 ft. × 11 1/4 in. × 1 ft. 6 in. × 2 ft. 1 in.)
  • Blade Length: 57"
  • Height with stand: 114"
  • Stand depth: 52.25"
  • Weight: 292 lbs (132.5 kg) [propeller = 276 lbs, spinner = 14 lbs, prop nut and split spacer = 2 lbs]

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum


PROPULSION-Propellers & Impellers

Related Topics