The New York Times

C.L. LAWRANCE, 67, AN INVENTOR, DIES; Developed Wright Whirlwind Engine That Powered Noted Distance Plane Flights

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Top 10: Twin-engined fighters of the second world war

Top 10: Twin-engined fighters of the second world war ...
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Wright Whirlwind J-5A-B Radial Engine

Click to open image viewer. Charles Lawrance, originally a race car engine designer, built his first air-cooled aircraft engine in 1921 for a Navy contract. The 149 kW (200 hp) J-1 satisfied a Navy ...
insider.si.edu

Wright Whirlwind R-790-A (J-5) Radial 9 Engine

Click to open image viewer. Power rating: 168 kW (225 hp) at 2,000 rpm Displacement: 12.9 L (788 cu in.) Bore and Stroke: 114 mm ( 4.5 in.) x 140 mm ( 5.5 in.) The J-5 Whirlwind was a cornerstone ...
The New York Times

WILBUR COMMENDS OFFICERS ON ENGINE; Recognizes Share of Wilson and Leighton in Developing the Wright 'Whirlwind.' CALLS IT TURNING POINT Says Air-Cooled Engine Used by Byrd ...

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