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).
List of production instructions and modifications for various vehicle components.
| Identifier | ExFiles\Box 142\2\ scan0093 | |
| Date | 9th February 1929 | |
| - 3 - BY1/G.9.2.29. N.Sch.2794 Strengthened Front Damper Casing. N.Sch.2795 Strengthened Shaft for Front Dampers. N.Sch.2817 Improved Ball Pin L'brn.Front Dampers. Rear Hydraulic Dampers. To be instructed for production with modifications shown on :- N.Sch.2800 Strengthened Rear Damper Position. N.Sch.2801 Strengthened Outside Lever - Rear N.Sch.2802 Strengthened Inside Lever} Damper. and Casing Steering Column. The lower controls shown on N.Sch.2809 and the latest design of steering column box shown on N.Sch.2791 should be instructed for production. We should also order the larger diameter steering wheel. We should arrange for a .250 dia. oil pipe on pendulum lever to ball end. Road Springs. The modifications shown on N.Sch.2813 Rear Spring Front Anchorage to allow to cover second leaf end, and N.Sch.2787 Front Spring Rear Anchorage to allow gaiter to cover second lead end and suggestions for spring lubrication, should be instructed for production, but Firths should be allowed to go ahead with the springs, as it is proposed to drill and cut the necessary grooves in the top leaves at these Works. The holes and grooves should not, however, be instructed at the moment. Petrol Tank. Two level device to be deleted. 'G' SECTION. Cross Steering. To be instructed for production with modifications shown on :- N. Sch. 2797 1.250" Spring Loaded Ball Joint - Cross Steering Tube. and GL.{G. Linnett}299. Change Speed Gear Box. Single Speedometer Drive to be instructed for production instead of the dual one. Flywheel and Clutch. This should be instructed for production except parts affected by the all-metal | ||