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).
List of development points and tests for servo brakes, chassis, engine, and exhaust systems.
| Identifier | ExFiles\Box 3\6\ 06-page243 | |
| Date | 2nd October 1934 guessed | |
| -2- (4) Cont'd.{John DeLooze - Company Secretary} (c) Servo tests. Improvement in existing servo. Eliminate fading, value of ball bearing bridge. Frictional value of pin drive. Reduction in tendency to squeak. (d) Direct to 4 wheels. Reduced pull off springs. Steel shoes. Will servo stand speeding up to reduce lag. (Test on Porlock). Reduction in sponge. Grylls. Hardy. (5) Front End Chassis Movement. (a) Wing stiffening. (b) Cross member stiffening. (c) Bumper bar damping. (d) Damping with radiator. (e) Effect of shock damper load. Whyman, Hardy. (6) Engine Smoothness. (a) Rubber mounting front and rear. (b) Best position for damping. (c) Short link for clutch pedal to eliminate front links. (d) Try softer rubbers with damping. Whyman. (7) Exhaust. (a) Effect of valve timing on "tinniness". (b) Effect of compression ratio on silencing difficulty. (c) Eliminate power loss in SpectreCodename for Phantom III system. Use 27-EX scheme. (d) Stiffen up 27-EX frame to get true effect of parallel motion, or alternatively fit its scheme to second SpectreCodename for Phantom III. (e) Effect of manifold on tinniness. (f) Compare 27-EX with standard car. Whyman. Bowen. | ||