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).
Operating piston guide sleeve seizure due to dust/grit and the need to reduce friction in the apparatus.
| Identifier | WestWitteringFiles\V\December1930-February1931\ Scan080 | |
| Date | 3rd January 1931 | |
| -2- We have had considerable trouble with the guide sleeve of the operating piston siezing in the alum casing due to the entry of dust and grit. In service the engines frequently operate in clouds of grit and sand when on the ground, being blown up by the propellers of other machines and it is essential we should well protect the above part. We do not think we should rely upon any exposed sliding parts of this apparatus. Elimination of all avoidable friction and slack in operating rods, levers, or differential gear is very necessary in order to get quick responsive operation and stable control of boost pressure at the desired value. We will give a further report when we have tested the effect of the restrictors and supply curves of its altitude performance. Hm{Capt. W. Hallam - Head Repairs}/A.C.Lovesey. | ||