Inadequacy of balancing Phantom III propeller shafts with kidney-shaped washers and recommending a new balancing flange.
| Identifier | ExFiles\Box 94\4\ scan0128 | |
| Date | 28th August 1936 | |
| x337 To By. {R.W. Bailey - Chief Engineer} c. to Sft. {Mr Swift} c. to Mx. {John H Maddocks - Chief Proving Officer} Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 5/KW.28.8.36. Phantom III Propellor Shafts. We do not consider that propellor shafts on this car can be balanced sufficiently accurately by the usual kidney shaped washers. These latter can only be fixed in four positions. Propellor shafts that the Exptl. Dept. obtain from the Works are never correctly balanced. We proved on the last one that the position of unbalance could not be corrected by the usual washers. We recommend that at the front end only a balancing flange be introduced and that this is drilled at the required place to correct unbalance. Will By please instruct this as soon as possible. No excuse will then remain for shafts not in balance. Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} | ||
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).