Power curve graph comparing engine performance with different pipe and carburettor setups.
| Identifier | ExFiles\Box 123\1\ scan0014 | |
| Date | 24th May 1939 | |
| POWER B.60 N° 1 C/RATIO 6 3/1 IO 5° AT EO 45° BB ETHYL PETROL IC 25° AB EC 7° BT {Capt. J. S. Burt - Engineer} EW 1974 "WRAITH" PIPE SINGLE STROMBERG EXS 1527 HUDSON PIPE DUPLEX STROMBERG EB 3477-8 BV PIPE TWIN 1 1/2" S.US. B.H.P. R.P.M. B.M.E.P. | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).