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 desirable improvements and technical notes for a vehicle, page 3.
| Identifier | WestWitteringFiles\R\October1927-December1927\ Scan008 | |
| Date | 10th May 1927 guessed | |
| (3) (c) Ignition wiring improved. (d) Magnesium alloy valve gear cover. (c) Front axle - shorter rubber buffers, no packing under springs. (d) Framed instruments. (4) DESIRABLE. Not so very necessary but desirable to improve. (a) Accessible oil drain cock in crankchamber. (b) Induction pipe with improved cold distribution and hot water jacket instead of exhaust. (c) Frame - only small changes - perhaps sides carried further back towards the wheel and luggage carrier. (d) New bonnet with new catches and lock. (e) Most recently improved steering. (f) Dropping car another 2" by lowering radiator in frame and dropping steering. (g) EAC.7. type rear brakes (involving slight modification to rear spring centre pivot.) This will be instructed immediately, but as several new dies are called for we think it may be some time before it is ready. (h) New solid torque tube. (Same remark as above applies to this) (i) Roller, and New Departure bearings in rear axle differential. (j) EAC. 10. type clutch. (k) Bonnet carried over dash. NOTES: Cast iron cyl. blocks - items (1)e.{Mr Elliott - Chief Engineer} & (2)e.{Mr Elliott - Chief Engineer}, are alternatives. Items (2)a.{Mr Adams} to (2)i. inclusive are all necessary to each other one and indivisible. Item (4)c. cancels injector exhaust heating in (3)a.{Mr Adams} We have not included centralised chassis lubrication as it does not seem essential to sports car, and being experimental, is a point of uncertainty, though it should be ready in time. R.{Sir Henry Royce} | ||