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).
Comparing the bore and crank pin diameter of Pierce Arrow parts to the company's 20 HP model.
Identifier | ExFiles\Box 23\4\ Scan019 | |
Date | 31th March 1928 | |
X4588 To Na.{Mr Nadin} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} c. to BJ. Hs{Lord Ernest Hives - Chair}/Rn{Mr Robinson}/LG31.3.28. X4588 X5010 We thank you for your note of the 17th. inst. with reference to the Pierce Arrow parts. These will be of considerable interest in spite of the fact that the bore is 3¾", because we think they are remarkably light considering that the crank pin dia. of the Pierce Arrow is no less than 2¼" against the 1.5" of our 20 HP. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||