Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer

This 2-stroke cycle powerplant of 1912 is the earliest American supercharged aeronautical engine still in existence. A vane-type supercharger is located between the crankcase and the accessory section.

 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 1912 Country of Origin United States of America Type PROPULSION-Reciprocating & Rotary Manufacturer Murray-Willat Company Physical Description Type: Rotary, 6 cylinders, air-cooled, 2-stroke, supercharged Power rating: 52 kW (70 hp) at 1,200 rpm Displacement: 6.14 L (374.52 cu in.) Bore and Stroke: 100 mm (3.94 in.) x 130 mm (5.12 in.) Weight: 118 kg (260 lb) Dimensions 3-D: 78.7 × 73.7cm, 117.9kg (31 × 29 in., 260lb.)
Support: 147.3 × 95.3 × 49.5cm (58 in. × 37 1/2 in. × 19 1/2 in.)
 Materials Metal
 Inventory Number A19640634000 Credit Line Gift of Miss Vera C. Murray. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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