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).
Fuel consumption tests on an F.11.27 engine, showing graphs for throttled and full throttle performance alongside tabulated data.
| Identifier | ExFiles\Box 36\2\ scan 183 | |
| Date | 28th September 1928 | |
| V433. CONSUMPTION TESTS ON F.11.27 CONDITIONS:- STD AIR INTAKES. AIR TEMP 16°C AVGE. WATER OUTLET 90°C. OIL OUTLET 70°C. 7:1 COMP. RATIO. FUEL:- STAGE 1-2 = 50/50 BENZOL/AVN. " 3-9 = 50/50 - SWAN / BENZOL-AVN MIXTURE. VALUES TAKEN FROM CURVE. TABLE DATA: | STAGE | HRS DURN | PTS/HOUR | TOTAL PINTS | H.P. REQD | R.P.M. | |---|---|---|---|---|---| | 1 | 2.5 | 254 | 63.5 | 536 | 2212 | | 2 | 7.5 | 279.5 | 209.5 | 570 | 2500 | | 3 | 10.0 | 160.5 | 1605.0 | 338 | 2328 | | 4 | 7.5 | 152.5 | 1143.7 | 315 | 2311 | | 5 | 7.5 | 145. | 1087.5 | 295 | 2295 | | 6 | 8.0 | 136.3 | 1090.4 | 268 | 2278 | | 7 | 10 | 123 | 1230.0 | 231 | 2255 | | 8 | 12.5 | 107 | 1337.5 | 185 | 2230 | | 9 | 16.0 | 84.5 | 1352.0 | 120 | 2190 | TABLE TOTALS AND CALCULATIONS: TOTAL HRS DURN: 72.5 TOTAL PINTS: 9119.1 PTS. TOTAL GALLONS: 1139.9 GALLS. Fuel Weight Calculation: | | TOTAL PTS | SP.{Mr Spinney}GR.{George Ratcliffe} FUEL | WT FUEL LBS. | |---|---|---|---| | Stages 1-2 | 273 | .875 | 278 | | Stages 3-9 | 8846 | .725 | 8016.7 | | TOTAL | 9119.1 | | 8294.7 LBS. | GRAPH 1 (LEFT): Title: THROTTLED Y-Axis: PINTS / HOUR X-Axis: B. H.{Arthur M. Hanbury - Head Complaints} P. GRAPH 2 (RIGHT): Title: FULL THROTTLE Y-Axis: PINTS / HR X-Axis: B. H.{Arthur M. Hanbury - Head Complaints} P. SIGNATURE: AHS 28/9/28 | ||