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).
Instructions for modifying a B-4 practice engine for Ulster and preparing it for endurance testing.
| Identifier | ExFiles\Box 90a\2\ Scan129 | |
| Date | 16th July 1934 | |
| +7962 To RHC.{R. H. Coverley - Production Engineer} c. to Ha/Swdi. c. to Ha/CTS.{C. Trot Salt - Carburation} c. to Ha/Ths. c. to Ha/FD.{Frank Dodd - Bodies} Ha/Rn.{Mr Robinson}6/KW.16.7.34. B-4 Unit. Practice Engine for Ulster. We are handing this engine over to you, will you please fit the special set of Aerolite pistons now in the Stores and replace the standard Bentley camshaft and tappets. This engine has not yet completed 10 hours endurance which is necessary before we can be sure of the reliability of the engine fitted to Hall's car, and therefore it is important that it should be returned to test as soon as possible. It will of course have the gallery pipe with the improved soldering, which should be the same as the one which will be finally fitted to Hall's unit. Ha/Rn.{Mr Robinson} | ||