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).
Brake tests for a 19-EX vehicle, detailing cold measurements, stopping distances, and brake component specifications.
| Identifier | ExFiles\Box 12\5\ 05-page309 | |
| Date | 20th October 1931 | |
| RM{William Robotham - Chief Engineer} 87360 BRAKE TESTS. 19-EX. 20.10.31 Cold measurements - Foot Pedal 5¼" Rear Arm both ⅞" Front toggles ⅝" O.S. ½" N.S. 12 brakes 70 - 10. 10 miles 40 - 10 every ¼ mile. 12 brakes 70 - 10. 10 miles 40 - 10 every ¼ mile. 5 studs found to be missing from N.S. front drum. Stopping distance from - 30 m.p.h. ..... 25 ft. 70 m.p.h. ..... 214 ft. 60 m.p.h. ..... 156 ft. 50 m.p.h. ..... 118 ft. 40 m.p.h. ..... 60 ft. 30 m.p.h. ..... 25 ft. 20 m.p.h. ..... 9 ft. 12 brakes 70 - 10 10 miles 40 - 10 every ¼ mile. 12 brakes 70 - 10. 10 miles 40 - 10 every ¼ mile. 119 miles. Front Brakes. O.S. Lake & Elliott Cast Iron Brake Drum Linings G.79542. N.S. RR. Cast Iron Brake Drum Linings G.79542. Auxiliary Brake Shoes G.79445. Ferodo Bonded Asbestos ¼" thick. Rear Brakes. G.79502 Rear Brake Drums produced in Lake & Elliott's Nickel Chrome Cast Iron., fitted with Anti-squeak Type Brakes to Sch.1433. Ferodo Bonded Asbestos ¼" thick. HS{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} | ||