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).
Comparative test of brake wear on car 33.G.VII, noting a disproportionate wear ratio.
| Identifier | ExFiles\Box 121\1\ scan0237 | |
| Date | 23th January 1940 | |
| -5- Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies}6/JH.23.1.40. Brakes on 33.G.VII. Hydraulic Front Girling Rear. This car is being run by Hs.{Lord Ernest Hives - Chair} and his Chauffeur and is an ideal comparative test with customers' conditions. We show below the speed of brake wear - FRONT. REAR. notches n.s. o.s. n.s. o.s. First -853 miles 1 1 3 3 " Following 1,416 1 1 3 3 " Following 1,558 0 0 4 4 " From these figures it will be seen that the ratio of wear is badly out of proportion. This car is fitted with alum drums and has the feeling of wanting more front braking. Car weight 40 cwts. 1 qr. 0 lbs. Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} | ||