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).
Requesting the experimental production of straight-tooth constant mesh gears for the Goshawk II gearbox.
| Identifier | ExFiles\Box 6\4\ 04-page001 | |
| Date | 28th October 1921 | |
| X4424 [Stamp: RECEIVED 29 OCT 1921 R.R.Co.LTD E.P.C.] Mr Coverley from BY/C. c. ad. c. EPC. c. Mr Broome. c. Mr Iacson. BY/C3/P28.10.21. GOSHAWK II. CHANGE GEARBOX. SPECIAL GEARBOX GEARS. X.4424. It has been decided that we should produce a set of constant mesh gears for the above gearbox, cut 6 diametral pitch straight teeth in place of helical teeth as at present, therefore we send you the following blueprints and should be glad if you would instruct one set to be made experimentally to the above order number; G.50538. First Motion Shaft. G.50539. Second motion Shaft Driven Gear. These gears should be cut on the Fellows machine, 6.D.P. and 14½° obliquity. BY/C. | ||