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).
Letter to a customer regarding testing new exhaust, cooling, and steering components on their car.
| Identifier | ExFiles\Box 82\3\ scan0247 | |
| Date | 8th May 1935 | |
| G.W. Hancock, Esq., Hotel de France, Chateauroux, Indre, France. x200n Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}9/KW.8.5.35. Regarding the exhaust system of your car, we have sent out a new box to replace the one which failed. We want your definite opinion on this new box with the straight through pipe and the lightened exhaust system, compared with the standard system. Our opinion here is that it is no worse for booms than the standard system, and little if any worse for fish tail noise. We do, however, take up the view that all exhaust systems improve after a little running, due to the carbon reducing tinniness and booms. With regard to the cooling, we are still anxious to get a value for this, and when you are doing the tests should like to know whether it is necessary to have a ventilated bonnet or not. We have found the trouble with the fan failure was due to out of balance. The lad who was doing the job in the Works got tired of balancing them and stopped doing so about two months ago. When a fan is out of balance it either smashes the small pin through which the adjusting rod passes, or the fan bracket. Therefore for your cooling tests will you please refit the fan; it cannot do any harm if it is properly balanced. With regard to the Peregrine steering column whipping, presumably you can overcome this by supporting it higher up. We should like you to carry out tests on these lines, and find out exactly where it has to be held to overcome the movement. Will you also tell us - having got rid of the whip - whether it is as good as the standard for rotational shocks. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||