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).
Experimental testing of different springs for the side steering tube on a 20-HP chassis.
| Identifier | ExFiles\Box 56\4\ Scan038 | |
| Date | 29th December 1926 | |
| C. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X5450 BY/HEB{H. Biraben}1/M.29.12.26. 20-HP. CHASSIS. SIDE STEERING TUBE SEC: 7070. (TO SUIT "N" SCHEME 2308). Further to our memo' BY/HEB{H. Biraben}4/M.18.12.26, by which we issued a Spring of 600 lbs/inch rating (F.54759) to be tried as an alternative to the 900 lbs/inch rated Spring F.54754 for the above, to "N" Scheme 2308. Please receive herewith two Blue Prints of each of the following:- F.54788 Spring for Side Steering Tube (500 lbs/inch Rate). F.54789 " " " " " (750 lbs/inch Rate). Kindly instruct for the above to be tried Experimentally, BY/HEB.{H. Biraben} [STAMPED] RECEIVED [Handwritten] Hs{Lord Ernest Hives - Chair} [Stamped] 1926 | ||