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).
Graphs from experiments on rear axle motion under various road conditions and damping settings.
| Identifier | ExFiles\Box 16\5\ Scan041 | |
| Date | 26th November 1931 | |
| REAR AXLE MOTION EXPERIMENTS SHEET I. PHANTOM 98 N.K M.P.H. SURFACE:- AVERAGE MAIN ROAD. SHARDLOW STRAIGHT. NO SHOCK ABSORBERS x 5.34 AXLE HEAVILY DAMPED x 2.68 SURFACE:- BAD POT-HOLES. BOLTON LANE. NO SHOCK ABSORBERS x 5.34 HEAVY DAMPING x 5.34 HORIZONTAL SCALE IS TIME, & EQUALS APPROX .7 SECS. PER INCH. VERTICAL SCALE IS AXLE MOVEMENTS & SHOULD BE MULTIPLIED BY THE RATIOS SHOWN (E.G. x 5.34) TO GET ACTUAL MOVEMENT OF AXLE IN INCHES, A DOWNWARD MOTION OF THE PEN, MEANS DOWNWARD MOVEMENT OF THE AXLE. THE SMALL FIGURES BENEATH THE GRAPHS GIVE THE AXLE VELOCITY IN FT/SEC AS OBTAINED FROM THE SLOPE. 26 NOV 31 TSN. 29·10·28 | ||