Radiator jellying, vehicle performance, and consumption figures.
| Identifier | ExFiles\Box 19\5\ Scan041 | |
| Date | 22th March 1930 | |
| 28992 Restaurant-Octobon., Le-Canadel. Par-Le-Lavandou. (Var) France. 22.3.30. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} from Dodd. With regard to radiator jellying. I first of all tried the car with tyre pressures at 40. lbs sq ins. This was a great improvement as was to be expected, over test with tyre pressures at 30.lbs. There was however still a slight jellying at the mascot. The rubber washers were then removed from behind the bolt heads, replacing them with steel washers, (in semi-isolation) as was suggested. I am of the opinion that this does improve the car for jellying at the mascot, the whole front of the car now moves together. I am not quite sure though yet, wether by tightening up on to the dash we dont loose some good movement on the body. Will do a few more experiments over rough roads to see if I can prove anything of this. Also effect on body boom at engine period of 20.m.p.h. Petrol-Consumption. Taking an average over a months running, Feb. we used 675.Litres---or 143.6galls at 4.7 Litres per gall. for 1474miles. Average m.p.g.-- 10.2 approx. This of course includes everything. Oil-Consumption. Under our running conditions, very little high speed work,is approx- 4,000 m.p.g....................... J.C.Dodd. ........................ | ||
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).