Brake area and weights of the Peregrine model, comparing it to the 25hp model and suggesting an increase in rear drum width.
| Identifier | ExFiles\Box 1\10\ B001_X106 TO X 110-page001 | |
| Date | 19th August 1932 | |
| X106. To By. {R.W. Bailey - Chief Engineer} from Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 5/KT.19.8.32. PEREGRINE(Experimental Bentley car never produced / Aero Engine) BRAKE AREA. The Peregrine(Experimental Bentley car never produced / Aero Engine) Wts. are } .637 tons front Empty } .75 tons rear. The brake areas/subtracting rivet countersink area) are 74 sq.ins front and rear. This gives, Brake area/Ton. Front 116 sq.ins. Rear 98 sq.ins. The present 25 hp. brake area is Front 72.1 Rear 123.0 Incidentally the deficiency in front brake area on the 20/25 is clearly shewn up on our 10,000 miles tests, the front drums usually being the ones that score. The point we wish to make is, can the Peregrine(Experimental Bentley car never produced / Aero Engine) rear drum width be increased 10% or so without complications? If so it would make a better braking system though the existing proportions are not at all bad. We compared them with other cars in Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 1/AD6.12.30. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||
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).