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Greybeard · 27 November 2007, 12:04 AM

Thanks you all a lot for help!

Mainly, what surprises me is how no test bench record seems survived of this "grand" engine (that Snipe used up to 1927, if my memory serves).

Then, I tend to rely on lowest value (230 HP), since, looking all sources agreeing on B.R.1 power output of 150 HP, ratio made by related displacements of the two engines, gives 216 HP as calculated power and 224 HP if a 1300 RPM is supposed (in relationship to 1250 RPM of B.R.1).

Perhaps some further HP was provided by some increase in compression ratio?

GB

27 November 2007, 12:04 AM	#6
Greybeard Forum Ace Join Date: Jul 2005 Location: Italy Posts: 700	Thanks you all a lot for help! Mainly, what surprises me is how no test bench record seems survived of this "grand" engine (that Snipe used up to 1927, if my memory serves). Then, I tend to rely on lowest value (230 HP), since, looking all sources agreeing on B.R.1 power output of 150 HP, ratio made by related displacements of the two engines, gives 216 HP as calculated power and 224 HP if a 1300 RPM is supposed (in relationship to 1250 RPM of B.R.1). Perhaps some further HP was provided by some increase in compression ratio? GB __________________ ------------------------------------------------------ It doesn't matter what we do but in what relationship we put each other while doing what we do.