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 modifications and part numbers for various mechanical systems including servo, transmission, and brakes.
| Identifier | ExFiles\Box 72\2\ scan0223 | |
| Date | 1st December 1926 | |
| -4- Servo Mechanism 1. Increased damping on Servo Balance Links fitted in accordance with N.S.2194 & Arrgt. Drg.G.74853. 2. Improved Servo Spring using Plate Springs G.74857-8. to prevent Servo jaggers to N.Sch:2192 & Arrgt.Drg. G.74818. 3. New Ground Servo Spur Gears G.73096-7. 4. Duralumin Worm Wheels G.72209, fitted in place of Phosphor Bronze Wheel otherwise to L.O.P. G.72550. Speedometer Drive. To L.O.P. G.72577. 1st.& 3rd.Motion Shaft. To L.O.P.G.73240. 2nd.Motion Shaft. Torsionally free 1st. & 2nd. Speed pinions with standard splines to LeC 2g21. Reverse Gear To L.O.P. G.72780. Intermediate Shaft. To L.O.P. G.73233. Change Gear & Brake Mechn: C.H.N.S. Change Gear keyed type Shaft G.74927. Modified Bush & Spring G.74909-11. otherwise to L.O.P. G.74299. Hand Brake Equalising Mechn: To L.O.P. G.2991. Foot Brake Equalising Mechn: | ||