Requesting a valve modification to resolve an issue with brake thumps.
| Identifier | ExFiles\Box 32\2\ Scan085 | |
| Date | 13th October 1933 | |
| Xr559. 204 To RHC {R. H. Coverley - Production Engineer} : from Hs {Lord Ernest Hives - Chair} /Gry {Shadwell Grylls} : Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 1/KT.13.10.33. BRAKE THUMPS: Will you please make a valve to the accompanying Hs. {Lord Ernest Hives - Chair} 1166. We find that with a .015 hole in the piston as at present, thereis insufficient damping for thumps, but too much on the return thus preventing the brake coming off. We think that with a .010 hole and this valve we may overcome the trouble. 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).