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).
Comparison table of different brake scheme specifications and performance metrics.
| Identifier | Morton\M20.3\ img016 | |
| Date | 4th June 1924 | |
| BRAKE COMPARISONS. Top Table: Headers: BRAKING SCH., FOOT RATIO TO REAR, SERVO RATIO TO REAR, TOTAL TO REAR, SERVO TO FRONT, FRONT BRAKING RATIO, REAR BRAKING RATIO, TOTAL BRAKING, REAR BRAKING, FRONT BRAKING, SERVO MULTIPN (S), SERVO CAM. Row 1: STD 40/50, 32, —, —, —, —, 545, 545, —, —, —, —. Row 2: GOSHAWK, 32.4, 24.1 S, 86, 31.8 S, 70x15, 86x17, 2510, 1.39, , 2.2, 45°. Row 3: N. SCH. 1801, 33, 53, , 70, 1050, 1460, —, —, —, —, —. Row 4: N SCH. 1801 II, 25, 23.7 S / 35.5, 60.5, 31.8 S / 47.7, 715, 1030, 1745, 1.44, , 1.5, 55°. Bottom Table: Headers: BRAKING SCH., PEDAL MOVT FOR 1 NOTCH ADJ. REAR BRAKES, PEDAL MOVT TO TAKE UP SERVO CLCE., TOTAL PEDAL MOVT. FOR 1 NOTCH ADJ., RELATIVE LAG., PEDAL MOVT. FOR 1 NOTCH ADJ. OF SERVO, SERVO CAM., CLCE. TAKEN UP ON S PLATES FOR 1 NOTCH ADJ. Row 1: STD 40/50, 1.395, —, 1.395, —, —, , . Row 2: GOSHAWK, , , , —, , 45°, . Row 3: N. SCH. 1801, 1.44, .232, 1.67, —, —, 55°, . Row 4: N. SCH. 1801 II, 1.075, .161, 1.23, , , , . Stamp: ROLLS-ROYCE, LIMITED PRINT ROOM. 4 - JUN 1924 DERBY | ||