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).
Weight breakdown of the Bentley Brake Mechanism components up to the drums.
| Identifier | ExFiles\Box 88\3\ scan0082 | |
| Date | 3rd January 1935 | |
| X 258 To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/FD.{Frank Dodd - Bodies}10/KW.3.1.35. Weight of Bentley Brake Mechanism up to the Drums. FOOT BRAKE. lbs. ozs. drms. Front axle section 6 3 13½ Front brake equalisers 5 9 6 Servo countershaft 4 13 3¼ Pedals etc. 4 9 8 Servo and drive 14 0 0 Rear brake equalisers 11 14 2½ Intermediate shafts 2 10 1½ Rear axle section 8 2 9½ Foot brake total ......................57 14 12 HAND BRAKE. Hand brake levers etc. 7 0 12¾ Equalisers, hand brake 7 0 4¾ Intermediate shafts 2 10 1½ Rear axle section 8 2 9½ Hand Brake total ......................24 13 12¼ Hs{Lord Ernest Hives - Chair}/RD. | ||