Blueprint graph and calculations concerning 40/50 model brake distribution.
| Identifier | ExFiles\Box 67\1\ scan0049 | |
| Date | 13th December 1926 guessed | |
| 40/50 BRAKE DISTRIBUTION OLD X₁ = 1.06y NEW X₂ = .800y 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 Left Axis: BRAKING UNITS (0, 400, 800, 1200, 1600, 2000, 2400, 2800, 3200) Right Axis: % BRAKING TO FRONT (10, 20, 30, 40, 50%) Bottom Axis: SERVO MULTIPLICATION OF TORQUE (0, 1, 2, 3) Graph Labels: OLD SERVO NEW SERVO TOTAL BRAKING REAR BRAKING FRONT BRAKING % TO FRONT TOTAL DIRECT ON STD. 40/50 545 UNITS Legend: 1. OLD DISTRIBUTION 40.5% TO FRONT 2. NEW DISTRIBUTION DA {Bernard Day - Chassis Design} 2/MIH226 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).