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 regarding modifications to Autovac units, the return of components for investigation, and enclosing comparative test results.
| Identifier | ExFiles\Box 40\4\ Scan223 | |
| Date | 16th February 1927 guessed | |
| contd :- -2- We should be glad to hear from you to the effect that all units supplied to us shall have the suction hole increased to .125" dia. We are returning to you under separate cover the Measuring Autovac in which we have at the present time no further interest. We should be glad if you would return to us the two Autovac units and petrol tank filter as soon as you have completed your investigations. We are enclosing for your information comparative curves shewing the results we obtained from the different units supplied to us. Yours faithfully, | ||