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).
Graph comparing the total heat given to oil by the Peregrine engine against two other aircraft engines.
| Identifier | ExFiles\Box 131\1\ scan0085 | |
| Date | 8th February 1933 guessed | |
| COMPARISON OF TOTAL HEAT GIVEN TO THE OIL BY PEREGRINE WITH THAT ON TWO AIRCRAFT ENGINES. HEAT TO OIL B.T.H.U./MIN: R.P.M. ROAD SPEED M.P.H. 60, 70, 80 R.R.F.XI CURTISS. BENSPORT PRELIMINARY FIGURES PEREGRINE. OIL PRESS: 35 LBS/□" OIL PRESS: 17 LBS/□" THE HEAT MEASURED DOES NOT INCLUDE THAT LOST BY NATURAL RADIATION FROM THE CRANKCASE. | ||