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).
Particulars of springs and clearances used on a speed car for a speed trial.
| Identifier | ExFiles\Box 3\3\ 03-page032 | |
| Date | 5th November 1912 | |
| W. R.{Sir Henry Royce} Nott-Bower WASHINGTON. D.{John DeLooze - Company Secretary} of E.{Mr Elliott - Chief Engineer} Particulars of springs as used on speed car for speed trial [Crossed out text: i.e. for 101.7 m.p.h. test] ON | OFF Clearance axle to Buffer: H.{Arthur M. Hanbury - Head Complaints} 1.875" | 4.125" Front Buffer to Car: 3.25" | 3.25" Depth of Buffer { Front: 1" | 1" { Rear: 1.5" | 1.5" Lean to Rear: NIL Particulars of Springs. "ON" size 1000 lbs (Flat) i.e. 3/4" camber. "OFF" size 100 lbs (Flat) i.e. 3/4" camber. initial camber 3 3/4" i.e. 3" deflection in 1" movement of axle. Fronts 4 7/8" initial camber. "ON" 81 lbs Flat i.e. 9/10 camber. "OFF" 80 lbs flat i.e. 9/10 camber. | ||