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).
Modifying Maybach jaws on an epicyclic 3rd speed gearbox after driving experience with 14-EX.
| Identifier | ExFiles\Box 15\5\ Scan193 | |
| Date | 3rd March 1931 | |
| X7310 R.{Sir Henry Royce} FROM DA.{Bernard Day - Chassis Design} DA{Bernard Day - Chassis Design}4/M3. 3. 31. C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} P. 2. EPICYCLIC 3rd SPEED GEARBOX. X.7310. C. to HS.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} HY.{Tom Haldenby - Plant Engineer} X.2200. After our experience in driving 14-EX. with the experimental Maybach dogs we tnink it will be necessary to modify to some extent the Maybach jaws on the epicyclic 3rd. speed box. The angle as instructed is 7° and 6° respectively on the vacquum and nani controlled dogs. Clicking seems certain to occur. We send herewith a print of N. sch. 3230. shewing the suggested modifications which we have sent to Derby, as the box is being built up rapidly. DA.{Bernard Day - Chassis Design} | ||