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).
Photograph of Hall's metal main bearings from a B-16 unit after an endurance test.
Identifier | ExFiles\Box 82\4\ scan0162 | |
Date | 21th September 1935 guessed | |
UPPER HALVES โ 1 to 7 โ B-16 Unit. 6.8:1 comp.ratio. Hall's metal main bearings after 42 hrs.30 mins. endurance as follows:- 1st 30 hrs. at 4,000 r.p.m. full throttle. Following 12½ hrs. as follows for each hour:- 30 mins. at 4,000 r.p.m. full throttle. 25 mins. at 4,250 full throttle. 5 mins. at 4,500 full throttle. | ||