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).
Servo torque multiplication with Ferodo linings, including formulae and a results table.
| Identifier | WestWitteringFiles\L\2April1924-June1924\ Scan4 | |
| Date | 20th March 1924 | |
| R.R. 493A (20H) (D.A. 652 20-3-24) J.H.D. -2- EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}/ACL/LGZ. 5. 24. ∴ 2.625 / 2 x S . B / 7.9 = B. ∴ s = B/A 2 x 7.9 / 2.625 S . B TORQUE MULTIPLICATION OF SERVO G.72550. Ferodo Linings. | Angle of Cam. | Normal braking. average servo multiplication | Instantaneous multipl'n. with sudden pedal pressure. | |---|---|---| | 65º | .48 | .96 | | 55º | 1.44 | 2.5 | | 45º | 2.10 | 3.12 | Hs{Lord Ernest Hives - Chair}/ACL. | ||