Talk:Pratt & Whitney R-2000 Twin Wasp
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Displacement
[edit]Bore and stroke yield 1,999.5 cuin, not the 2,004 given. AMCKen (talk) 03:43, 26 December 2010 (UTC)
- Source? - BilCat (talk) 08:21, 26 December 2010 (UTC)
- It is not necessarily the displacement that is wrong, you need to find a ref to change this, not a calculator. - Ahunt (talk) 15:27, 27 December 2010 (UTC)
- I just consulted the Type Certificate Data Sheet which is cited as a ref for the article and it says bore of 5.75" and stroke of 5.5" and displacement of 2004 cu in, so I think you are missing something there in your calculations. The TCDS is an approved engineering document prepared by the manufacturer and approved by the FAA. It is possible there is some error, but it is more likely you are missing some factor. You are going to need to find a very good ref to overturn the TCDS. - Ahunt (talk) 15:32, 27 December 2010 (UTC)
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