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).
Confirmation of a modification to the Wraith induction pipe EW.862 for distribution tests.
| Identifier | ExFiles\Box 6\6\ 06-page306 | |
| Date | 15th September 1937 | |
| 600 By/Scott. Rm{William Robotham - Chief Engineer}/CTS{C. Trot Salt - Carburation}6/R.15.9.37. WRAITH. This is to confirm that you will produce a blueprint showing the main bore of Wraith induction pipe EW.862 reduced to 1.400 dia. The branches to be tapered out to match up with the existing parts of 1.600 dia. This modification being for the purpose of distribution tests, without a pattern alteration. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||