Necessity of a front axle bump test for the Vulture chassis before any speed testing.
| Identifier | ExFiles\Box 123\3\ scan0083 | |
| Date | 1st January 1934 | |
| To Hs. {Lord Ernest Hives - Chair} from E. {Mr Elliott - Chief Engineer} c. Sg. {Arthur F. Sidgreaves - MD} Wor. {Arthur Wormald - General Works Manager} By. {R.W. Bailey - Chief Engineer} re Testing Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine) Chassis. Before we allow anybody to do any speed on the Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine) chassis, I am definitely of the opinion that we ought to have an equivalent bump test to make certain that the front axle will not fail on the road. It would be possible to rig up a J.3. front axle and pivots on the Phantom II bump chassis, or alternatively the equivalent weight of a Phantom II engine on the 20-HP bump chassis (which has a similar front axle to Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine)) with the same relative position of engine and axle. It is realised that we took a somewhat similar risk when we put the Bentley engine into what was practically a Peregrine(Experimental Bentley car never produced / Aero Engine) chassis, but in the case of the Vulture(Experimental 6 CYL OHV LONG STROKE / Aero Engine) the proportion of increased weight is considerably more, and the engine is further forward. E. {Mr Elliott - Chief Engineer} | ||
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).