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).
Porous Aerolite pistons for the Ulster Race B-4 practice unit and the subsequent plan for testing.
| Identifier | ExFiles\Box 90a\2\ Scan056 | |
| Date | 4th July 1934 | |
| x7962 To RHC.{R. H. Coverley - Production Engineer} c. to Hs{Lord Ernest Hives - Chair}/CTS.{C. Trot Salt - Carburation} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}23/KW.4.7.34. Practice Unit for Ulster Race - B-4. We have had a telephone communication from the Aerolite Piston people to say that on finally machining the ones they cast last week they found that they were porous. In consequence they think they are unfit to run and have put a complete new batch in hand, which will not be finished until Tuesday next. In view of this fact we should like you to re-build B-4 unit exactly to its last specification, fitting the Aerolite Pistons which were used previously, and we will then carry out tests on the exhaust system. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||