The durability of a Cast Iron engine unit after 4,300 miles of road and track testing, including at Brooklands.
| Identifier | ExFiles\Box 124\1\ scan0093 | |
| Date | 29th April 1939 | |
| -3- RM {William Robotham - Chief Engineer} /Sym. 3/MH. {M. Huckerby} 29.4.39. standard engine and the Cast Iron engine. This particular Cast Iron engine unit in 29.G.Vl. {V. Lewis / Mr Valentine} car, B.60 No.2, has now run 4,300 miles on the road, including 60 laps of full throttle work on Brooklands track, and a considerable amount of over-reving during experimental tests and has stood up very well, in fact we cannot say that all its "thrashing" has had any detrimental effect upon it whatever. RM {William Robotham - Chief Engineer} /Sym. | ||
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).