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).
Vehicle evaluation report covering steering, chassis specifications, fuel consumption, and braking performance.
| Identifier | ExFiles\Box 21\4\ Scan076 | |
| Date | 23th July 1920 | |
| Contd. -7- Hs{Lord Ernest Hives - Chair}2/LG23.7.20. radius rods. They are elliptic type. The back axle ratio is 3.75 to 1. The diameter of the road wheels is 895 x 135. The back axle was exceptionally good for silence. The tie-rod was used on the back axle. STEERING. X 963 The steering on this car was worm and segment type. On the road it operated very nicely except that it was very heavy on full lock. The steering was self-centering. It was very good steering at high speeds. it was noticeable that on all the steering levers the ball ends was made solid with the lever; the lever itself was then bent at right-angles. CHASSIS. Weight of chassis - rear 12 cwt. 0 qrs. - front 15 cwt. 2 qrs. This chassis complete with battery and head lamps which makes it 1 ton 7 cwt. 2 qrs. The car comes out very heavy considering the HP. obtained from the engine. The chassis has a rather nice appearance chiefly due to the fact that the frame is low. The top of the frme is 22" from the ground. The minimum ground clearance at the undershield end of the flywheel is 7.750". Consumption tests on the road. 16.5 M.P.G. at 20 M.P.H. 18 M.P.G. at 40 M.P.S. GENERAL CONCLUSION. X 3458 The brakes are certainly the outstanding feature on this car. There is no doubt that the braking on all four wheels must give better braking effect than braking on rear wheels only. Apart from the fact that the car can be pulled up more Contd. | ||