Letter from North & Sons, Ltd. regarding an error in setting the safety gaps on Watford IS.12 magnetos.
| Identifier | ExFiles\Box 43\4\ Scan312 | |
| Date | 18th November 1930 | |
| X4021. The BRITISH MADE Watford SPEEDOMETERS & MAGNETOS. NORTH & SONS, LTD. WHIPPENDELL ROAD, WATFORD. TELEPHONE/S: LONDON 1346 GERRARD WORKS: 822 & 823 WATFORD. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY. CROWN AGENTS FOR THE COLONIES, INDIA(Production 20 HP. with 4-speed box and Front Wheel Brakes) OFFICE. TELEGRAMS: AEROMAGS WESTCENT LONDON. AEROMAGS WATFORD. Ref. CT/7. Your ref. EFC {E. Fowler Clarke - Electrical Engineer} /4/AD. EFC {E. Fowler Clarke - Electrical Engineer} RECEIVED 19 NOV 1930 SH 18th November, 1930. Messrs Rolls Royce Ltd., DERBY. Dear Sirs, Watford IS.12 Magnetos Nos 98033/4. We thank you for your letter of the 17th instant, in connection with the differnece of the safety gaps of the above mentioned magnetos. The matter has been thoroughly gone into and the conclusion arrived at, is, that the error is due to a misreading of the taper gauge which we use for setting the safety gaps on these magnetos. In view of the above we shall be pleased if you will alter the gap on magneto No.98033 to read 8.5. mm. Yours faithfully, for NORTH & SONS LTD., C. M. {Mr Moon / Mr Moore} Allen. | ||
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).