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).
Issues with an inadequate throttle spring on the Phantom III and introducing a stronger replacement.
| Identifier | ExFiles\Box 113\2\ scan0192 | |
| Date | 19th October 1936 | |
| SAE - 26. 1000 E/PSN.1/MN.19.10.36. To BY.{R.W. Bailey - Chief Engineer} Copy to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} [Handwritten] F.Dodd Dx. Ex. RHO. [Handwritten] What throttle spring have we on 32E.X. Stronger Throttle Spring - Phantom III. We send you herewith LeC.5335 of a stronger throttle spring for the above chassis. We had complaints of the existing spring being inadequate to close the throttle, and it was agreed that it should be stretched out by ¼"to increase its loading. Under these conditions the spring is rather overstressed and we have had complaints of a number of springs taking a permanent set and breaking at the hooked ends. This stronger spring gives the same loads as the pulled out spring with considerably lower stresses. Will you please detail and instruct this stronger spring for experimental purposes so that it can be tested and be available should we get into serious difficulty with the pulled out spring. [Handwritten] F Dodd - Is the fault - fitting / PSN. or design [Handwritten Signature] Ru Rm{William Robotham - Chief Engineer} Att:LeC.5335. [Handwritten] The present standard. The fault is in the pedal mechanism on this car. A [Handwritten] Rm{William Robotham - Chief Engineer} This was faulty fitting - too tight all round. and the range. wrong. Rm{William Robotham - Chief Engineer} / F.D. | ||