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).
Cover note for sketch Hs.747 detailing a modification to the cylinder head compression ratio for the Peregrine engine.
| Identifier | ExFiles\Box 19\7\ Scan150 | |
| Date | 29th October 1932 | |
| PEREGRINE Files. x/90 29.10.32. The attached sketch Hs.{Lord Ernest Hives - Chair}747 shows a means of altering the compression ratio of cylinder heads to E.100578 from 6.5/1 to 6.0/1 and which will be used on the first Peregrine going to France. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||