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).
Letter to Wing Comndr. Helmore suggesting the use of O2 to accelerate tests and to get a new Y alloy rotor made locally.
| Identifier | ExFiles\Box 132\4\ scan0183 | |
| Date | 11th November 1938 | |
| 1124 Rm{William Robotham - Chief Engineer}11/R.{Sir Henry Royce} 11th November, 1938. Wing Comndr. Helmore, Engineering Laboratory, CAMBRIDGE. Dear Helmore, Thank you for your letter of November 7th. I suggest that you use O2 to accelerate the test. I recommend that you get a new Y alloy rotor made locally to save time. We are looking forward with interest to the results of your tests. Our own progress in accelerated cylinder bore wear has depressed us, but we are not yet defeated. Yours sincerely, | ||