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).
Preliminary test and inspection findings for the 40/50 model's front wheel brakes.
Identifier | ExFiles\Box 73\3\ scan0167 | |
Date | 15th July 1924 | |
19940 c. Hs.{Lord Ernest Hives - Chair} c. [REDACTED] c. [REDACTED] for Mr. Turner. EP{G. Eric Platford - Chief Quality Engineer}2/H15.7.24. re. 40/50. FRONT WHEEL BRAKES. We have now received the first of the new series chassis on test, and our preliminary tests and inspection bring forward the following points, to which I shall be glad if consideration can be given and instructions arranged if necessary :- 1. Front road spring clips foul the front silencer. 2. Front brake actuating levers foul the engine drive. 3. The clearance between the dynamometer drive, universal joint and the down exhaust pipe is insufficient at present. When cold this is about 3/16". Hs.{Lord Ernest Hives - Chair} points out that this should be a minimum of ½" and this minimum clearance should be arranged on the first 20 chassis, after which an alteration in the exhaust pipe is being made to give a more definite and still further increased clearance. 4. The side steering tube has at present five bends in it, whereas the model on the experimental car which I understand from Hs.{Lord Ernest Hives - Chair} is correct, appears to have three bends only. The present one looks bad, and the Works require some instructions as Mr. Turner points out that this is to drawing. 5. The exhaust choke carburetter sticks, and we understand from Hs.{Lord Ernest Hives - Chair} that a definite clearance for the trunnion and also end clearance have been specified. It is important that these should be carried out. 6. Our dynamometer test shows that the engine gives 2.2 HP. less than the standard at engine revs over 1500. Can you please instruct for a number of pipes to be supplied for tests to be carried out on our unit engine test bed. We should like about 4 to 6 sets. After they have been run they can be returned to the Experimental Dept. CONTD. | ||