| Long Harlequin 933 | |
|---|---|
| Type | Horizontally Opposed Piston |
| National origin | United States |
| Designer | Leslie Long |
The Long Harlequin is a two-cylinder horizontally opposed aircraft engine.
Design and development
The Harlequin engine was developed as a replacement to the Heath-Henderson B-4 engine used on the Long Henderson Longster homebuilt aircraft. The cylinders were based on a 74 cubic inch Harley Davidson JD Engine with connecting rods from Continental built Star auto engine. The builder was expected to machine their own crankshaft, Les Long cast and sold crankcases
Applications
Engines on display
- Eagles Mere Aircraft Museum
Dart Airport Museum in Mayville NY
Oregon Aviation Historical Society Cottage Grove Oregon
Glen Curtis Museum Hammondsport, New York
Two other examples known in private collections
Specifications (Long Herlequin)
General characteristics
- Dry weight: 90lb
Components
- Fuel system: Single carburetor
- Cooling system: Air-cooled
Performance
- Power output: 30hp @2650rpm
References
- "The Plane That Helped Save Homebuilding". Air Progress. Winter 1969.
- "Some remarkable experiments in lightplane performance". Popular Aviation. November 1935.
- 1933 Flying Manual (Mechanix Illustrated).
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