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).
Acceleration test results for vehicle 49-GB at Brooklands with a standard axle and 1/8' liners under cylinders.
| Identifier | ExFiles\Box 29\3\ Scan084 | |
| Date | 16th June 1920 | |
| R.R. 199 (250T) (SD676 19-7-17) MP180865 16.6.20. -------- 49-GB AT BROOKLANDS. Standard Axle - 1/8" liners under cylinders. ACCELERATION TESTS. M.P.H. seconds. Condition. 10 to 20 5 10 to 30 10.5 10 to 40 16.5 Hood up - 10 to 50 23 Screen up - 10 to 60 30.5 Cutout open. 10 to 20 4.5 10 to 30 10 10 to 40 15.5 Hood down - 10 to 50 22 Screen up - 10 to 60 30 Cutout open. 10 to 20 4 10 to 30 10 10 to 40 16 Hood down - 10 to 50 23 Screen down - 10 to 60 30 Cutout open. 10 to 20 5 10 to 30 11 10 to 40 16.5 Hood up - 10 to 50 24 Screen up - 10 to 60 33.5 Cutout closed. 10 to 20 5 10 to 30 10.5 10 to 40 16 Hood down - 10 to 50 24 Screen up - 10 to 60 34 Cutout closed. 10 to 20 5 10 to 30 10.5 10 to 40 16.5 Hood down - 10 to 50 23 screen down 10 to 60 30 cutout closed. | ||