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).
Road test report on a Daimler Double Six 30/40 chassis.
| Identifier | WestWitteringFiles\U\August1930-November1930\ Scan100 | |
| Date | 7th October 1930 | |
| -5- HS{Lord Ernest Hives - Chair}/W.3/LAL.7.10.30.Contd. ROAD TESTS OF CHASSIS. DAIMLER DOUBLE SIX 30/40 CHASSIS. 73.5 x 104. 5296 c.c. R.A.C.40.18. Car weight 51 Cwt. 4 seater saloon body 11 ft 6 in. wheelbase. Axle ratio given as 4.6 - 1. This is the most road worthy and lively Daimler we have tried. The top speed is about 70 M.P.H. The cooling is very good. The exhaust pipes now run out of the front of the Vee so that they do not roast the floorboards. The steering and brakes are good average. The suspension is still rather more flexible than we consider desirable but is much more damped than previous Daimler practice. It suffers from 40 M.P.H. pitching in exactly the same manner as we do, perhaps to a slightly reduced extent. The double six engine is a little disappointing, not from the vibration point of view but from the fact that it is not quite as silent as one would expect. Presumably the duplicating of the carburetters and exhaust have something to do with this coupled with the low top gear ratio. It runs smoothly up to 40 M.P.H. on 2nd. The engine pulls well, the acceleration of the Daimler must be very similar to that of P.II. The worst feature of the car was a grumbling period at about 35 - 45 M.P.H. which appeared to emanate | ||