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).
Requesting and detailing rig testing procedures for a new chassis, specifically for suspension and brakes.
| Identifier | ExFiles\Box 148\2\ scan0057 | |
| Date | 19th November 1938 | |
| To Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} from Rm{William Robotham - Chief Engineer}/Cr.{Mr Cra???ster / Mr Chichester} URGENT. Rm{William Robotham - Chief Engineer}/Cr.{Mr Cra???ster / Mr Chichester}4/MH.{M. Huckerby}19.11.38. Will you please fill in on this sheet what tests you consider a new chassis should go through before going onto production, i.e. on the road, on the dynamometer and other test apparatus, with special regard to the sections you are responsible for. Rm{William Robotham - Chief Engineer}/Cr.{Mr Cra???ster / Mr Chichester} [Signature] Rm{William Robotham - Chief Engineer}/AFM{Anthony F. Martindale} Rig Tests Suspension All suspension pieces to stand 50 hours on bump rig (& the rest of the chassis also) except the springs, which should stand 100 hours, on the 3" lift cams. The front suspension should also stand 25 hours on the brake torque rig at full brake load (2,000 lbs on a Bentley). Brakes All pieces to stand double the pedal load required to lock rear wheels. The servo should stand 100 hours on dynamometer, load applied for 2-3 secs per min at pedal load required to lock rear wheels. PTO | ||