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).
Comparing the performance and weight of a 38-slot machine against an old standard 57-segment machine.
| Identifier | ExFiles\Box 165\6\ img112 | |
| Date | 29th June 1920 | |
| ROLLS-ROYCE LTD. INSTRUCTIONS. To Order No. Customer's No. 2 at cutting-in. From 1200rpm (9.0 amps) to 2900rpm (7.0 amps) the specification is exceeded after which the curve obtained falls just below. This result is very similar to that obtained with the old standard 57 segment machine. Item 4. The weight of the 38 slot machine m/c 21 lbs is the same as that of the old standard. Curves and figures of Routine Procedure results together with old voltage schedule performance and peak-ampere outputs are attached. Signed H.A. This Sheet must be filed on completion of the work. | ||