Talk:Pratt & Whitney R-985 Wasp Junior

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Military history: Aviation / Technology / North America / United States / World War II / Cold War

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Untitled

Gentlemen:

We have been trying to find out how Pratt & Whitney developed the power charts for their round engines. More specifically how they developed the altitude correction charts for them? If anyone has any information about this, or a suggestion where I could look for this material. I would like to thank you in advance for your help.

Thanks very much.

John Parker www.americanairracing.com

I would contact someone at Pratt & Whitney. They are usually pretty helpful with historical research projects. - Emt147 ^Burninate! 02:54, 16 January 2007 (UTC)[reply]

Displacement

Math says the true displacement is 986.75 cuin (16.17 Li). The 985 figure is a rounded number typical of the military designation system. AMCKen (talk) 04:40, 2 May 2012 (UTC)[reply]

Beech 18

This seems unlikely if the Wasp Junior was only produced until 1953: "Production of the Beech 18 with the Wasp Junior engine continued until 1970." Kendall-K1 (talk) 21:47, 16 February 2016 (UTC)[reply]

The company website has 1953 http://www.pw.utc.com/R985_Wasp_Jr_Engine, perhaps Beech bought a job lot and continued to fit them. MilborneOne (talk) 15:49, 17 February 2016 (UTC)[reply]