Graph and calculations comparing brake distribution for the 40/50 model, showing old, new, and proposed setups.
| Identifier | ExFiles\Box 66\5\ scan0081 | |
| Date | 13th December 1926 guessed | |
| 40/50 BRAKE DISTRIBUTION OLD X₁ = 1.06y NEW X₂ = .800y Diagram labels: y, 2.00, 2.625, 2.05, 5.8, 7.85, x X₁ = y x 2.625/.544 x 3/1 x 5.8/2.05 x 1/3.925 = 1.06y X₂ = y x 2.00/.544 x 3/1 x 5.8/2.05 x 1/3.925 = .80y FRICTION DISC RAD: 3.00" CAM RADIUS .5437 CAM LEVER LENGTH 2.625 OR 2.00 Graph Text: BRAKING UNITS OLD SERVO NEW SERVO TOTAL BRAKING REAR BRAKING FRONT BRAKING % TO FRONT TOTAL DIRECT ON STD. 40/50 545 UNITS % BRAKING TO FRONT SERVO MULTIPLICATION OF TORQUE 1. OLD DISTRIBUTION 40.5% TO FRONT 2. NEW DISTRIBUTION DA {Bernard Day - Chassis Design} 2/MIR26 38.7% TO FRONT 3. EXP. PROPOSED MODIFN. - 34% TO FRONT | ||
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).