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).
Graph showing power losses due to 1st and 2nd motion shafts for a Phantom II Synchromesh system.
| Identifier | ExFiles\Box 178\4\ img075 | |
| Date | 1st May 1932 guessed | |
| P.II SYNCHROMESH POWER LOSSES DUE TO 1ST AND 2ND MOTION SHAFTS TORQUE AT A = 96 LBS. INS. REQUIRING 15 LBS. ON LEVER B = 65 LBS. INS. 10 " " TO CHANGE INTO TOP GEAR H.P. R.P.M. COLD OIL OIL AT 40°C NO OIL | ||