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The Long Harlequin is a two-cylinder horizontally opposed aircraft engine.

Long Harlequin 933
Type Horizontally Opposed Piston
National origin United States
Manufacturer
Designed by Leslie Long

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 Engine with connecting rods from Continental built Star Marine engine. The builder was expected to forge their own crankcase and crankshaft.[1][2][3]


Applications



Engines on display


Dart Airport Museum in Mayville NY


Specifications (Long Herlequin)


General characteristics

Components

Performance


References


  1. "The Plane That Helped Save Homebuilding". Air Progress. Winter 1969.
  2. "Some remarkable experiments in lightplane performance". Popular Aviation. November 1935.
  3. 1933 Flying Manual (Mechanix Illustrated). {{cite journal}}: Missing or empty |title= (help)
  4. "Eagles Mere aircraft museum". Retrieved 7 October 2013.



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