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).
Test results for a Spectre Gear Box oil feed to the third motion shaft, run in fourth gear.
| Identifier | ExFiles\Box 94\1\ scan0266 | |
| Date | 29th October 1935 | |
| SPECTRECodename for Phantom III GEAR BOX I H.S. N Sch 4668 OIL FEED TO THIRD MOTION SHAFT WAKE-FIELD'S HIGH PRESSURE OIL-DARK USED GEAR BOX RUN IN FOURTH GEAR | ENGINE R.P.M | INITIAL TEMP °C | FINAL TEMP °C | DELIVERY CCS/HR | |--------------|-----------------|---------------|-----------------| | 3,000 | 55 | 97 | 145 * | | 3,000 | 97 | 96 | 64 | | 3,000 | 50 | 90 | 64 | | 3,000 | 90 | 92 | 52 | | 3,000 | 92 | 91 | 46 | | 4,000 | 90 | 115 | 203 | | 3,000 | 48 | 86 | 24 | | 4,000 | 86 | 108 | 110 | | 3,000 | 108 | 97 | 38 | | 2,000 | 97 | 83 | 16 * | * THESE TESTS CARRIED OUT OVER 30 MINS. INSTEAD OF 1 HOUR. DELIVERY CCS/HR. NO OIL CAME OUT AT 1,000 R.P.M. BUT AT 1,500 R.P.M. AND 50°C IT TOOK 25 MINUTES TO REACH THE OUTER END OF THE DRY SHAFT. SHEET I (3 SHEETS) | ||