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).
Photograph showing Phantom III No.1 Unit whitemetal bearings for strap type rods after an endurance test.
| Identifier | ExFiles\Box 114\2\ scan0232 | |
| Date | 27th November 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 | ||