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).
Query from Mr. Royce regarding the performance of multi-ringed pistons in aero engines during a nosedive.
| Identifier | ExFiles\Box 77\2\ scan0154 | |
| Date | 13th June 1917 | |
| To EH. from E½ X. 2369 E5/B13.6.17. X. 2209 X 2369 - X½2809 X. 2749. RE PISTONS We have been previously informed by you that multi-ringed pistons are good for slow running so far as chassis work is concerned. Would you kindly note that Mr. Royce would like to know if these same pistons have the additional virtue of not oiling up during a nose dive from a high altitude on aero engines. E.{Mr Elliott - Chief Engineer} | ||