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).
Extract from a report detailing a cold-start test on a starter motor.
Identifier | ExFiles\Box 62\1\ scan0097 | |
Date | 3rd December 1932 | |
To WST / X6134 Extract from Mr Hancock's report - dated 3.12.32. --------------------------- RE STARTER MOTOR. We risked and left the car standing outside the garage all night to obtain starting difficulties. The following data was obtained :- Air Temp. 6°C. Oil Temp 6°C. First 1/4 min the engine revs. were 68 per min. This dropped to 52 r.p.m. for the next one minute and 40 secs. They did not obtain a start of the engine. I gave them a throttle position which previously has been O.K. for starting, but Brazier said it would not start until they had closed the throttle for another five seconds. I carried out this test because they had been using the starting handle to assist the motor every morning, and I wanted to know if this was necessary, because we had not found it so on our way over. This test will be repeated to obtain a more definite start. | ||