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).
The performance of an experimental elbow for the Autovac system, noting a 50% fault reduction.
| Identifier | ExFiles\Box 40\4\ Scan144 | |
| Date | 14th November 1925 | |
| Hs.{Lord Ernest Hives - Chair} c to BY c to Hm.{Capt. W. Hallam - Head Repairs} c to PN{Mr Northey} c to EP{G. Eric Platford - Chief Quality Engineer} c to CWB X3579 Mx{John H Maddocks - Chief Proving Officer}4/T.14.11.25. RE AUTOVAC. We found the Experimental Elbow which we tried was an improvement. It did not entirely overcome the trouble, and we endorse what you say, it reduces the fault by at least 50%. We did not find any disadvantages at all in other respects. Mx.{John H Maddocks - Chief Proving Officer} | ||