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The Williams WR19 is the world’s smallest turbofan power plant. It has been used in the Bell Flying Belt, the Williams Aerial Systems Platform (WASP), and the Kaman Stowable Aircrew Vehicle Escape Rotoseat (SAVER). Developments of this turbofan engine power the Foxjet business aircraft and all U.S. cruise missiles under development in 1980.

Small turbine engines such as WR19 are finding industrial, marine, automotive, and pipeline applications. Earlier Williams turbojets powered unmanned target drones and were used as auxiliary power units for military transport aircraft. The initial high cost of such powers is often offset by their efficiency, low operating costs, and low maintenance requirements.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date 1969 Country of Origin United States of America Type PROPULSION-Turbines (Jet) Designer Sam Williams
 Manufacturer Williams Research Corporation, Walled Lake, Michigan
 Physical Description Type: Turbofan Thrust: 1,910 N (430 lb) Fan: 2-stage axial Compressor: 2-stage axial low pressure, single-stage centrifugal high pressure Combustor: Annular Turbine: Single-stage high pressure, 2-stage low pressure Weight: 30 kg (67 lb) Dimensions Length 61 cm (24.0 in.), Diameter 30.5 cm (12.0 in.)
 Materials Metal
 Inventory Number A19790109000 Credit Line Gift of Williams Research Corporation, Walled Lake, Michigan Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.