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).
Aero calculations for the Phantom III engine, detailing boost performance and comparing specific outputs with the Merlin and Peregrine engines.
Identifier | ExFiles\Box 96\4\ scan0142 | |
Date | 14th October 1938 | |
14/10/38. PHANTOM III (AERO CALCULATIONS). Based on present engine giving 240 BHP at 4000 RPM normally aspirated with 3 ins. Hg. depression. (a) 6" Hg. Boost - 286 BHP - 126 MEP. (b) 12"Hg. " - 315 BHP - 140 MEP. Actual aero specific outputs are :- Lbs/BHP. Merlin - 1.74 Wet 1.29 Dry. Peregrine - 1.62 " 1.22 " Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||