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).
Instruction sheet recording numerical data for a 'Max Spirit' test, likely for engine performance, at various RPMs.
| Identifier | ExFiles\Box 20\4\ Scan020 | |
| Date | 28th October 1918 | |
| RR 6 (500 T) (SF 121. 28.10.18) MP 197597 ROLLS-ROYCE LIMITED. INSTRUCTIONS. X976 To Max Spirit Barom 29.6 Order No. Customer's No. Revs str lift Cons Pts Per Hr Strong Weakest 2000 364 364 204 .54 199 1800 392 352.8 194 .52 186 1600 402 326.1 190 .53 176 1400 398 338.3 188 .52 178 70° open 350 144 162 50° " 300 148 138 Signed This Sheet must be filed on completion of the work. | ||