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).
Confirming the 35° thrust angle for Phantom 111 & Bentley bevel pinion thrust bearings.
| Identifier | ExFiles\Box 84\4\ scan0132 | |
| Date | 24th December 1936 | |
| 202 Rm.{William Robotham - Chief Engineer} ----- BY.2/G.24.12.36. PHANTOM 111 & BENTLEY - BEVEL PINION THRUST BEARINGS. --------------------------------------------- The Hoffmann Co. have confirmed that the thrust angle they have worked upon for the bearings which have been submitted for test is 35°. We are therefore handing the bearings back to you, so that you can go on with the test. BY.{R.W. Bailey - Chief Engineer} | ||