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).
Testing of 45° cam angles for foot brakes on R.H. and L.H. chassis.
| Identifier | ExFiles\Box 12\5\ 05-page310 | |
| Date | 18th November 1931 | |
| Ry/Cgh.{W Clough} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. MX.{John H Maddocks - Chief Proving Officer} X-360 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}6/AD18.11.31. P.2. FOOT BRAKES. We cannot yet recommend that the two cam angles on the R.H. and L.H. chassis should be the same because we have had no experience with 45° cams on the R.H. chassis. However, we are making a point of testing out 45° cams on the R.H. chassis and shall report on them in due course. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||