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 results for a standard motor under cold and hot conditions, detailing performance metrics.
| Identifier | ExFiles\Box 61b\3\ scan0137 | |
| Date | 11th August 1930 | |
| -2- Contd. STANDARD MOTOR. (COLD) Test. | Speed of engine (R.P.M.) | Motor Speed. | Volts. | Amps. | Temp. of cyl: | Temp. of radiator. | Remarks. ---|---|---|---|---|---|---|--- 1 | 50 | 1165 | 10.65 | 82 | 19.5⁰C | 19.5⁰C | Volts taken across battery terminals. 2 | 58 | 1350 | 10.63 | 82 | " | " | " " 3 | 64 | 1490 | 10.59 | 82 | " | " | " " Motor volts would be about 9.9 Motor torque (chain wheel) 30. Engine torque 630 lb-inches. (HOT). 1 | 100 | 2330 | 11.71 | 62.0 | 72⁰C | 88⁰C | Volts taken across battery terminals. 2 | 100 | 2330 | 11.65 | 60.0 | 80⁰C | 90⁰C | " " 3 | 100 | 2330 | 11.55 | 60.8 | 80⁰C | 90⁰C | " " Motor volts would be about 11.1. Motor torque (chain wheel value) = 18 lb-inches. Engine torque 378 lb-inches. Contd. R R 386A (100 T). H.{Arthur M. Hanbury - Head Complaints} (S) (100) 159. 11-8-30. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} (100) 2800 | ||