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).
Adjustments to brake distribution and servo assistance for 40/50 & 20 HP models to improve safety.
| Identifier | ExFiles\Box 66\5\ scan0083 | |
| Date | 13th December 1926 | |
| Y8470 To Hs. {Lord Ernest Hives - Chair} from R. {Sir Henry Royce} c. to BJ. R1/M13.12.26. 40/50 & 20 HP. BRAKE DISTRIBUTION. X. 8420 X. S420 X. 8370 The object of my suggestion re. the above was :- (1) To decrease the risk of steering taking charge by front axle tuhring over, (2) Incidentally, I thought in case of emergency one might over-brake (especially the inexperienced). So that I wanted a less percentage front braking - say a ratio of 33 to 66%, and less servo help, say 1.75 instead of 2., but the same direct effect on the rear wheels for shunting etc. It is not quite clear to me what you have done in Sch.3. Apparently you agree to 1., but not 2. I would rig up several cars as you suggest and get PN. {Mr Northey} and GWB. to approve. The matter is urgent: there can be no risk, except slightly less total braking. I think the cars will be safer. I see you have standardisation sheets going: this is good for the longer lever to front braking, thereby reducing it, but do not alter either servo or direct to rear. This can be done later if found desirable. R. {Sir Henry Royce} | ||