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).
Proposal for modifications to crankcase bolting, referencing blueprint LeC.3311 for the Peregrine engine.
| Identifier | ExFiles\Box 2\3\ B002_X 116 117 119 120-page37 | |
| Date | 15th December 1932 | |
| - 2 - Would you kindly say if you would agree to these modifications. We also attach blueprint of LeC.3311 showing a proposed modification to the crankcase bolting, whereby the numerous corners and fillets produced by the bosses for the lower half bolts are deleted in favour of one long machined face for the bolt heads, the number of bolts being reduced by 33-1/3%. We think the bolts will have less to do on the Peregrine owing to the very much increased stiffness of the top half. E.{Mr Elliott - Chief Engineer} | ||