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).
Request to change Peregrine engine pistons to a lower compression ratio for supercharger work.
| Identifier | ExFiles\Box 2\1\ B002_136 137-page05 | |
| Date | 26th June 1932 | |
| To FV. From Ha/Rm.{William Robotham - Chief Engineer} To E.{Mr Elliott - Chief Engineer} C. Misc. X.136. Re/Rm.{William Robotham - Chief Engineer}7/AD26.6.32. PEREGRINE PISTONS The 5.85 C.R. pistons that we are at present running on this engine are too high for supercharger work. We therefore require pistons giving 5.3 C.R. Will you please instruct these as soon as possible. Ha/Rm.{William Robotham - Chief Engineer} | ||