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).
Test report on two Watford type IS12 aero magnetos for a Falcon X experimental engine, detailing a failure and subsequent repair.
| Identifier | ExFiles\Box 43\4\ Scan003 | |
| Date | 23th September 1926 | |
| RR 238 (100 BKS.) (EHST.20-8-20.) MP 224350 X 3835 4021 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.Y.B. Order No. WB{Mr Brazier/Mr Bell} 104 Customer's No. X Watford type IS12 Aero magnetos. We have tested two of these magnetos received from Messrs Norths and destined for Falcon X expl engine. One of these, NO 83120, failed after an hours run on the bench under normal conditions, and upon subsequent examination the condenser was found short-circuited. The condenser was returned to Messrs Norths, and upon receipt of a new condenser which was refitted to the magneto, further tests were made. The other magneto functioned OK throughout the tests, which consisted of an hours preliminary Signed: contd. This Sheet must be filed on completion of the work. | ||