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).
Delays and proposed design modifications for the lightened Phantom engine.
| Identifier | ExFiles\Box 71\2\ scan0154 | |
| Date | 9th June 1926 | |
| To EY. from E.{Mr Elliott - Chief Engineer} c. to BJ. Hs.{Lord Ernest Hives - Chair} X8840 E1/M9.6.26. RE. LIGHTENED PHANTOM ENGINE. X. 8840 X. 8870 X. 8230 In reply to your BY3/H3.6.26., we regret that the remaining schemes for the lightened Phantom engine have hung fire somewhat, but we have been concentrating every available effort on aero engine work. We will however very shortly now let you have further information regarding this matter. The main thing was to get the cyl. head and block moving and apply it in the quickest possible way to the standard engine. Regarding the exhaust and induction pipe systems on LeC. 2229 these were intended for detailing, and we have not made any alteration except now you will require to increase the height of the induction pipe uptake by .5" to suit the taller cyl. block. You will notice on this design that we have omitted the petrol drainage pipes on the induction manifold. Before the patterns are put through if possible we should like Hs.{Lord Ernest Hives - Chair} opinion as to whether we can dispense with these fittings without experiencing any detrimental effect. E.{Mr Elliott - Chief Engineer} | ||