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).
The performance and weight of a second 48 coil medium output machine.
| Identifier | ExFiles\Box 60\4\ Scan036 | |
| Date | 18th March 1931 guessed | |
| ROLLS-ROYCE LTD. INSTRUCTIONS. To ____________ 19__ Order No. ____________ Customer's No. 2 (48 coil medium output). The second machine, made up from 1. 24s. IO has been run and a curve taken. This shows that there is no appreciable difference from the normal performance of medium output machines. Commutation and silence are also good. The weight of these machines is just under 19 lbs or rather more than 1 lb. lighter than the standard. Some further detail modifications in construction are in hand. Signed [Signature] This Sheet must be filed on completion of the work. RR 238 (150 BKS.) IOB 461-8-12-24) MP 306975 | ||