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Pratt & Whitney R-1830 : ウィキペディア英語版
Pratt & Whitney R-1830 Twin Wasp


The Pratt & Whitney R-1830 Twin Wasp was an American aircraft engine widely used in the 1930s and 1940s. Produced by Pratt & Whitney, it was a two-row, 14-cylinder, air-cooled radial design. It displaced and its bore and stroke were both 5.5 in (140 mm). A total of 173,618 R-1830 engines was built,〔 and from their use in two of the most-produced aircraft ever built, the B-24 bomber and DC-3 transport, more Twin Wasps may have been built than any other aviation piston engine in history. A "bored-out" version (to a 5.75 inch/146 mm cylinder bore) with a slightly higher power rating and other slight changes in detail design was produced as the R-2000.
==Variants==

* R-1830-1: 800 hp (597 kW)
* R-1830-9: 850 hp (634 kW), 950 hp (708 kW)
* R-1830-11: 800 hp (597 kW)
* R-1830-13: 900 hp (671 kW), 950 hp (708 kW), 1,050 hp (783 kW)
* R-1830-17: 1,200 hp (895 kW)
* R-1830-21: 1,200 hp (895 kW)
* R-1830-25: 1,100 hp (820 kW)
* R-1830-33: 1,200 hp (895 kW)
* R-1830-35: 1,200 hp (895 kW) Fitted with GE B-2 turbosupercharger
* R-1830-41: 1,200 hp (895 kW) Fitted with GE B-2 turbosupercharger
* R-1830-43: 1,200 hp (895 kW)
* R-1830-45: 1,050 hp (783 kW)
* R-1830-49: 1,200 hp (895 kW)
* R-1830-64: 850 hp (634 kW), 900 hp (671 kW)
* R-1830-65: 1,200 hp (895 kW)
* R-1830-66: 1,000 hp (746 kW), 1,050 hp (783 kW), 1,200 hp (895 kW)
* R-1830-72: 1,050 hp (783 kW)
* R-1830-76: 1,200 hp (895 kW)
* R-1830-82: 1,200 hp (895 kW)
* R-1830-86: 1,200 hp (895 kW)
* R-1830-88: 1,200 hp (895 kW)
* R-1830-90: 1,200 hp (895 kW)
* R-1830-90-B: 1,200 hp (895 kW)
* R-1830-92: 1,200 hp (895 kW)
* R-1830-94: 1,350 hp (1,007 kW)
* R-1830-S1C3-G: 1,050 hp (783 kW), 1,200 hp (895 kW)
* R-1830-S3C4: 1,200 hp (895 kW)
* R-1830-S3C4-G: 1,200 hp (895 kW)
* R-1830-S6C3-G: 1,100 hp (820 kW)
* R-1830-SC-G: 900 hp (671 kW)
* R-1830-SC2-G: 900 hp (671 kW), 1,050 hp (783 kW)
* R-1830-SC3-G: 1,065 hp (749 kW) same engine built in Sweden as STWC-3G by SFA company for Swedish J 22, B 17 and B 18.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Pratt & Whitney R-1830 Twin Wasp」の詳細全文を読む



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