Modifications required for the B.50 gearbox.
| Identifier | ExFiles\Box 112\2\ scan0077 | |
| Date | 22th December 1938 | |
| 828 To By. {R.W. Bailey - Chief Engineer} from Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} c. Da. {Bernard Day - Chassis Design} c. Da {Bernard Day - Chassis Design} /Hdy. {William Hardy} Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} 5/MH. {M. Huckerby} 22.12.38. B.50 GEARBOX. As discussed with Hdy. {William Hardy} we now know of further modifications required to this gearbox. (1) We need synchromesh springs on all 3 gears. This is being drawn. (2) The middle third of the splines in the 1st. speed wheel should be removed. This helps to keep 2nd. gear in mesh. (3) A slightly stronger selector spring is required for reverse. The latest design comes out of mesh at full throttle but only requires a touch on the lever to keep it in. We suggest a spring giving 12 lbs. at the gear knob. (4) We require a breather and have discussed with Hdy. {William Hardy} incorporating this in the aluminium dip stick. Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} | ||
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).