Phantom III propeller shaft failure, attributing it to faulty sweating and detailing a design alteration to increase pin diameter.
| Identifier | ExFiles\Box 94\4\ scan0165 | |
| Date | 6th April 1938 | |
| RHC. {R. H. Coverley - Production Engineer} Rm. {William Robotham - Chief Engineer} c. Hs. {Lord Ernest Hives - Chair} 337. BY.9/N.6.4.38. Re: Phantom III - Propeller Shafts. Referring to your memo RHC. {R. H. Coverley - Production Engineer} 1/MC.4.4.38, pointing out the failure of the propeller shaft was due to faulty sweating, and not a question of design, I agree to retaining the same number of pins, but increasing the diameter from .250 to .312 and we are issuing an alteration covering this. BY. {R.W. Bailey - 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).