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).
Performance graph showing the consumption loop for a Kestrel six-cylinder unit at 2250 RPM and full throttle.
| Identifier | ExFiles\Box 54\4\ Scan073 | |
| Date | 25th January 1933 guessed | |
| KESTREL SIX CYLINDER UNIT CONSUMPTION LOOP 2250 RPM FULL THROTTLE FUEL. DTD. 134 + 3 cc T.E.L. / GAL. OIL. P4 + T.E.L. + ZnO PLUGS. K.L.G. V9/1 AND OTHERS IGNITION BEST SETTING C.R. 7.0/1 NOM: SP. {Mr Spinney} CONS: PTS / BHP / HR B. M. {Mr Moon / Mr Moore} E. {Mr Elliott - Chief Engineer} P 600 550 500 450 400 110 120 130 140 150 160 .452 PTS/HP/HR +/- 1/2 % F. {Mr Friese} 38363 | ||