Union Type 1-6, In-line 6 Engine
date: label: Date
content: Circa 1917
name: label: Manufacturer
content: Union Gas Engine Company, Oakland, California
notes: label: Physical Description
content: Type: Reciprocating, 6 cylinders, in-line type, water-cooled
label: Physical Description
content: Power rating: 92.05 kW (123.44 hp) at 1,387 rpm
label: Physical Description
content: Displacement: 11.33 L (691.14 cu in.)
label: Physical Description
content: Bore and Stroke: 121 mm (4.75 in.) x 165 mm (6.5 in.)
label: Physical Description
content: Weight: 221 kg (485 lb)
label: Summary
content: The Union Gas Engine Company of Oakland, California began producing marine engines in 1885, and started experimental construction of an aircraft engine in 1915. In 1917, under Army and Navy supervision, that engine, with a pusher propeller, was the first to pass the U.S. government 50-hour test, which consisted of eight full throttle, six hour runs on consecutive days, followed by a tilting test.
label: Summary
content: Union engines were built primarily for use in lighter-than-air craft. A Union engine of this type powered a non-stop record 1,760 km (1,100 mile) flight of 25 hours from New York to Newfoundland on the U.S.N. Airship C-5 in 1919, an apparent trial for a later unaccomplished trans-Atlantic flight.
place: label: Country of Origin
content: United States of America
setName: label: See more items in
content: National Air and Space Museum Collection
creditLine: label: Credit Line
content: Gift of Stanley H. Page
dataSource: label: Data Source
content: National Air and Space Museum
identifier: label: Inventory Number
content: A19390028000
objectType: label: Type
content: PROPULSION-Reciprocating & Rotary
objectRights: label: Restrictions & Rights
content: CC0
physicalDescription: label: Materials
content: Steel, Aluminum, Paint, Ceramic, Rubber, Textile, Preservative coating
label: Dimensions
content: Overall: 40 3/4 in. × 17 in. × 65 in. (103.5 × 43.2 × 165.1cm)
label: Dimensions
content: Approximate (Weighed with Stand): 337.5kg (744lb.)
label: Dimensions
content: Height 103.5 cm (40.75 in.), Width 43.2 cm (17 in.), Depth 165.1 cm (65 in.)