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 comparison table for an engine using B.P. and Krasnagnarsky spirit fuel.
| Identifier | ExFiles\Box 43\1\ Scan084 | |
| Date | 17th March 1925 | |
| 17.3.25. KRASNAGNARSKY SPIRIT. Consumption and H.P. tables - weakest maintained. | B.P. | KRASNAGNARSKY. | |---|---| | R.P.M. | HP. | Cons. | Pts.HP.hr. | HP. | Cons. | Pts.HP.hr. | | 2000 | 370 | 202 | .54 | 374 | 216 | .57 | | 1900 | 366 | 198 | .54 | 369 | 210 | .56 | | 1800 | 360 | 188 | .53 | 364 | 206 | .56 | | 1700 | 347 | 184 | .53 | 353 | 198 | .56 | | 1600 | 334 | 178 | .52 | 339 | 190 | .58 | | 1500 | 316 | 164 | .51 | 320 | 186 | .58 | If the mixture control is not touched, and a change over of spirit made, at 1800 r.p.m. (normal) the increase in consumption using Kras-sky is 18 pts.per hr. for a corresponding increase of 4 HP. HS{Lord Ernest Hives - Chair}/TMW. | ||