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- Excelsior (Lawrance) A-3, Horizontally-Opposed 2 Engine
Excelsior (Lawrance) A-3, Horizontally-Opposed 2 Engine
Object Details
- Physical Description
- Type: Reciprocating, in-line, 2 cylinders, air-cooled
- Horsepower: 20.9 kW (28 hp) at 1,400 rpm
- Displacement: Not available
- Bore and Stroke: Not available
- Weight: Not available
- Summary
- Like other early manufacturers, engineer Charles L. Lawrance first designed racing car engines before founding the Lawrance Aero Engine Corporation in New York City in 1917.
- Although designed by Lawrance, Excelsior Auto Cycle Motor Mfg. & Supply of Chicago, Illinois manufactured the Model A-3 engine. An interesting feature of this engine was that both pistons worked on the same crank. During World War I, it was used in the non-flying Breeze Penquin training aircraft. The purpose of that aircraft was to instruct student pilots in the use of aircraft controls while running on the ground. Beginning in January 1918, 301 Breeze Penguins were procured.
- Lawrance later had a very successful career with the Wright Aeronautical Corporation, particularly in its development of the famous Whirlwind series of radial engines.
- Credit Line
- Gift of William D. Parker
- Data Source
- National Air and Space Museum
- Date
- Circa 1916
- Inventory Number
- A19560078000
- Manufacturer
- Excelsior Auto Cycle Motor Mfg. & Supply (Lawrance)
- Designer
- Lawrance Aero Engine Corp
- Restrictions & Rights
- Usage conditions apply
- Type
- PROPULSION-Reciprocating & Rotary
- Materials
- Steel, Aluminum, Paint, Copper, Phenolic, Textile, Rubber
- Dimensions
- Depth 105.4 cm (41.5 in.), Length 119.4 cm (47 in.), Width 85.1 cm (33.5 in.)
- Country of Origin
- United States of America
- See more items in
- National Air and Space Museum Collection
- Record ID
- nasm_A19560078000
- Usage
- Not determined
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