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).
Performance graph from Brooklands tests comparing two different engine configurations.
Identifier | ExFiles\Box 29\3\ Scan330 | |
Date | 19th June 1931 | |
SHEET I BROOKLANDS TESTS 19/6/31 LAP SPEED C.O. OPEN. 18 G IV 70.64 M.P.H. 16G IV 69.66 Upper Graph Data: 18 G IV 35.7 CWTS. JAPAN UNIT C/R 5.25 TWIN ZENITH 26M.M. CHOKES 112° CAMSHAFT OPEN EXHAUST Diagram values: T.O.C.11, 49, 49 Lower Graph Data: 16 G IV 31.8 JAPAN UNIT C/R 5.25 46% LARGER R.R. CARB. 110° CAMSHAFT OPEN EX. Diagram values: 10°, EX., .013 CLCE, 43, 34, CAR WT. Axis Labels: B.H.P B.M.E.P. ENGINE R.P.M. ROAD SPEED M.P.H. | ||