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).
And recommending different engine construction options, including the Peregrine design.
| Identifier | ExFiles\Box 86\1\ scan0236 | |
| Date | 17th April 1937 guessed | |
| (3) There are no disadvantages that we can see, if the liner construction is approved. This latter does not require rubber rings and is the same as was successfully used on the Peregrine. (This system of studding could be used with the present block, but as in (2) it does not overcome the remaining difficulties). (D) If it is desired to alter the present construction, the aluminium engine, though light and not too expensive, has the drawback referred to in the first paragraph, viz. it may be necessary to use hydraulic tappets - the length of life of the rubber rings is a matter of some anxiety. (E) There remains the pure Peregrine construction construction. This must be very cheap and simple, and overcomes all the drawbacks of the present scheme, while retaining its advantages, but the two disadvantages are - increased weight - hotter oil. If we are asked to make a recommendation we should say that we ought to investigate completely the construction referred to in (C). We have carried it far enough to say that we see no difficulties and we suggest that it is a sound compromise. Da.{Bernard Day - Chassis Design} | ||