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).
Experimental project for a four shoe brake on a Wraith front axle.
| Identifier | ExFiles\Box 148\4\ scan0193 | |
| Date | 20th February 1938 | |
| NPS HS{Lord Ernest Hives - Chair} S/RGb. 1261 EXPERIMENTAL PROJECT - CHASSIS DESCRIPTION: Four shoe brake on Wraith Front Axle. PURPOSE: To reduce maximum pressure between lining & drum, which pressure is 100% greater on the front brakes than the rear, & is the reason why we are troubled with brake squeaks on the front brakes, and not on the rear. NEW OR MODIFIED APPARATUS REQUIRED: New set of front shoes. COST TACKLE (EJJ) EXPTL UNIT (G/Rb.{R. Bowen}): £60 3 MONTHS' DEVPT (G/Rb.{R. Bowen}): General Development. APPLICATION MADE BY: A.F. MARTINDALE REMARKS By.{R.W. Bailey - Chief Engineer} Agreed it is desirable to try this to prevent squeaks. VBY Completion date for designs: 20 Feb 1938 Rm.{William Robotham - Chief Engineer} We consider that we should know as much as possible about the four shoe developement. M.F. /atting Hs.{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair} O/No. for manufacture: s/52627/8/9/30 O/No. for development: [scratched out] M.F.P. | ||