Brooklands test results comparing performance with different fuels, tyres, and carburetter setups.
| Identifier | ExFiles\Box 107\1\ scan0135 | |
| Date | 16th August 1932 guessed | |
| GIN-60. BROOKLANDS TESTS. Redline Spirit plus 3 c/c lead. Tyres new. pressure 40 lbs. Standard carburetter and gasket. Lap speed mean of 2 runs at 71.26 m.p.h. Flying ½ mile mean of 2 runs at 73.19 m.p.h. Ethyl Spirit. Tyres half new. pressure 35 lbs. S.U.Carburetter, thin gasket. Lap Speed. 2 runs. 75.80 1st 76.51 X 2nd Flying ½ mile. 4 runs. 77.92 1st 77.92 2nd 80.36 X 3rd 79.65 X 4th X windows shut. ACCELERATION TESTS. Present Jet. Jet supplied by S.U. M.P.H. 2nd gear. secs. 3rd gear. secs. Top gear. secs. 2nd gear. secs. 3rd gear. secs. Top gear. secs. 10 to 20 1.4/5 3 6.4/5 1.4/5 2.4/5 4.3/5 10 to 30 4.4/5 5.4/5 8.4/5 4.2/5 5.3/5 7.4/5 10 to 40 9 13 9.2/5 12.4/5 10 to 50 13.3/5 19 14.3/5 19.3/5 10 to 60 24.3/5 30.1/5 10 to 65 33.1/5 34.4/5 Lap 74.44 m.p.h. Flying ½ mile 77.59 m.p.h. Lap 73.78 m.p.h. Flying ½ mile 77.59 m.p.h. M.P.H. 3rd gear. secs. 20 to 30 2.2/5 30 to 40 3.2/5 40 to 50 4.3/5 | ||
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).