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).
Notes from a visit to Mr. Royce regarding the 20 HP and new 50 HP chassis.
| Identifier | WestWitteringFiles\C\May1919\ Scan0 | |
| Date | 6th May 1919 | |
| To HN.{F. C. Honeyman - Retail orders} from E.{Mr Elliott - Chief Engineer} Copy to C.J. " " EH. " " RY. " " DA.{Bernard Day - Chassis Design} " " EFC. PT - CONCEPTION ORIGINAL X.3548. X.3481. RECEIVED 20 o 40/50 19 (3) E1/G3/5/19. NOTES ON 20 H.P. AND NEW 50 H.P. - VISIT OF MESSRS. BARRINGTON AND HIVES TO MR. ROYCE OF THE 20th & 30th ULTIMO. OBJECT:- The object of this report is to propagate the following notes as instructions to the departments concerned. (1) MATERIAL. - It was considered most important by Mr. Royce that material should not be ordered in excess of the exact amount instructed by the offices for the sake of dicipline and to avoid excessive and wasteful manufacture of material. (2) 50 H.P. ENGINE. - The size of the new 50 H.P. engine has been decided at 4" bore by 5½" stroke. X.3549 (3) HOT AIR FOR CARBURETTOR. - Mr. Royce suggests that in supplying hot air to the carburettors of our new chassis, the heating should be provided by a water jacket on the inlet, as the usual method of having a long twisted pipe crossing over to the exhaust is very inconvenient and ineffective. (4) 20 H.P. CRANKCASE. - It is hoped that the detail drawings of the 20 H.P. crankcase are in hand in Derby. Every effort is to be made to complete the information required for this particular part from West WitteringHenry Royce's home town. Mr. Hives estimated that about two months would be required to make the crankcase patterns for the 20 H.P. but Mr. Royce pointed out that as these particular pieces were very small and simple compared with the aero engine crankcase, which we (Contd.) | ||