Photograph of worn whitemetal bearings from a Phantom III engine unit after an endurance test.
| Identifier | ExFiles\Box 114\2\ scan0233 | |
| Date | 21th August 1935 guessed | |
| <- 1 TO 6 -> PHANTOM III No.1. UNIT Whitemetal bearings, strap type rods. No.6. completely run out after 13 hours endurance at 4,000 R.P.M. Inlet Temp. 100°C Outlet temp. 124°C | ||
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).