Table of performance data showing HP calculations at various speeds and loads, with notes on gear and cutout status.
| Identifier | ExFiles\Box 69\3\ scan0325 | |
| Date | 6th October 1925 guessed | |
| contd :- -2- M.T. lbs. H.P. Barom. HP. X 5. 500 185 = 26.3 - .1 = 26.2 = 131.0 750 183 = 38.8 - .2 = 38.6 = 193.0 1000 175 = 49.3 - .4 = 48.9 = 244.5 1250 168 = 59.2 - .6 = 58.6 = 293.0 1500 160 = 67.4 - .7 = 66.7 = 333.5 1750 151 = 74.5 - .9 = 73.6 = 368.0 2000 143 = 81.0 - .9 = 80.1 = 400.5 cutout open. 3rd. gear 2250 210 " " 2500 182 " " 2750 149 154 = 87.0 - .9 = 86.1 = 430.5 | ||
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).