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).
Instructions for a further bench test on a Magneto (NO 68302) due to unsatisfactory performance in a hot condition.
| Identifier | ExFiles\Box 47\4\ Scan104 | |
| Date | 2nd March 1925 | |
| RR 238 (150 BKS.) (BH57-29-8-20.) MP 22435H X 6118 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.Y.b Date: 2 - 3 - 1925 Order No. WA {Mr Wallis} 114 Customer's No. X 3551 Magneto (ROI Watford) NO 68302 esc & Chassis GAK 77 Jackson Owing to the fact that this magneto had been reported unsatisfactory when in a hot condition on the chassis, a further bench test has been carried out. This consisted of a low speed sparking test and an endurance run of 7 hrs at 2000 rpm; (in the advanced position 4 hrs and the retard 3 hrs) with the object of observing the H.T sparking. The results were almost exactly the same as when the magneto was previously tested (WA. {Mr Wallis} 102 - 9-1-25) Signed: could This Sheet must be filed on completion of the work. | ||