Talk:Napier Sabre
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I think there's a minor error in this article; where it talks about "the rear banks proved to be impossible to cool properly", I think it means "rear cylinders", since of course in an inline H engine the banks are described as top/bottom and left/right. However, without checking a reference, I'm loathe to change it. Noel 00:37, 3 Oct 2003 (UTC)
White's "allied aircraft piston engines of world war II" doesn't seem to specify whether the sabre was two or four stroke, but "Jane's fighting aircraft of world war II" page 278 is quite explicit that it was a four stroke. I've just read Setright's "power to fly" and don't remember him saying the sabre was a two stroke. I think the only major two strokes were Junkers diesels like the 205. Kahl 24/7/2006
- It's a four stroke. If it was a two stroke it would be like the Rolls-Royce Crecy and would be even more remarkable than it already is. PeterGrecian 13:27, 24 July 2006 (UTC)
The statement that the forces from opposing pistons balance is only true where the pistons move in opposition - one moves left as the other moves right. In many flat-12s, including the H-24 Sabre, the two pistons move together - both left or both right and so the forces add rather than cancel. Peter R Hastings 13:31, 26 February 2007 (UTC)
