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).
Modifications for a 25-30 Front Expansion Box.
| Identifier | ExFiles\Box 104\2\ scan0166 | |
| Date | 15th January 1936 | |
| VERY URGENT. X523 BY: c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. RHC.{R. H. Coverley - Production Engineer} Rm{William Robotham - Chief Engineer} E/JNR.{Charles L. Jenner}1/HP.15.1.36. re 25-30 Front Expansion Box. ref.Hs{Lord Ernest Hives - Chair}/Wym.{G. Harold Whyman - Experimental Manager}20/KW. 20.12.35. We send you herewith as requested:- LeC.4930 showing the Bentley type front box fitted to the 25-30 engine. To maintain the ground clearance and to give a clearance between the box and the engine side guard it is necessary to modify the shape as shown. The downtake pipe from the manifold is shortened and also the intermediate pipe is altered slightly to suit the new centre. The triangular stays between the sump of course are longer because they have to reach out further due to this box being oval in form. Wym{G. Harold Whyman - Experimental Manager} Should like to see this scheme O.K. [Signature] Rm{William Robotham - Chief Engineer} E/JNR.{Charles L. Jenner} LeC.4930 herewith. | ||