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).
Chart detailing rear spring specifications for various body types and chassis.
Identifier | ExFiles\Box 43\2\ Scan268 | |
Date | 29th January 1930 | |
DRAWING NO. A 14835. SEE ALSO THE FOLLOWING OPERATION DRAWINGS CHART of REAR SPRINGS. 1. ORIGINAL ERECTION - CHASSIS TO BE SPRUNG IN ACCORDANCE WITH BODY TYPES. SPRINGS. BODY TYPE, STD. REAR WEIGHT, CHASSIS 2301-2730 (STIFFNESS WEIGHT, PT. NO.), CHASSIS 2731 ON (STIFFNESS WEIGHT, PT. NO.) ASCOT, 2610, 1600, A12390, 529, 1700, A12390 REGENT, 2730, 1700, A12391, 553, 1800, A12391 AVON, 2760, 1700, A12391, 559, 1800, A12391 DOVER, 2920, 1800, A12392, 591, 1900, A12392 ST.{Capt. P. R. Strong} MARTIN, 2920, 1800, A12392, 591, 1900, A12392 HUNTINGDON, 2980, 1800, A12392, 603, 1900, A12392 ST.{Capt. P. R. Strong} ANDREWS, 3000, 1900, A12393, 607, 1900, A12393 ST.{Capt. P. R. Strong} REGIS, 3000, 1900, A12393, 607, 1900, A12393 DERBY, 2625, 1600, A12390, 532, 1700, A12390 RIVIERA, 2800, 1700, A12391, 567, 1800, A12391 NEWMARKET 4P, 2830, 1800, A12392, 577, 1800, A12391 KENILWORTH, 2830, 1800, A12392, 573, 1800, A12391 TOWN BROUGHAM, 2910, 1800, A12392, 589, 1900, A12392 TROUVILLE, 2970, 1900, A12393, 601, 1900, A12393 LONSDALE, 3000, 1900, A12393, 607, 1900, A12393 ST.{Capt. P. R. Strong} ALBANS, 3000, 1900, A12393, 607, 1900, A12393 ST.{Capt. P. R. Strong} STEPHEN, 3000, 1900, A12393, 607, 1900, A12393 NEWMARKET 7P, 3140, 1900, A12393, 595, 1900, A12393 2. AFTER MOUNTING BODY - SPRINGS MUST BE CHECKED AGAINST MEASURED REAR WEIGHTS. CHASSIS 1701-2300 RANGE of WEIGHT, STIFFNESS RANGE, SPRING, PT. NO. 2550-2730, L.H. 530-570 R.H. 570-610, 1600 1700, A9763 A9766 2730-2920, L.H. 570-610 R.H. 610-650, 1700 1800, A9767 2920-3110, L.H. 610-650 R.H. 650-690, 1800 1900, A9769 A9947 3110-3250, L.H. 650-690 R.H. 680-720, 1900 2000, A9947 A9768 USE A12394 FOR REPLACEMENTS. CHASSIS 2301-2730 RANGE of WEIGHT, STIFFNESS RANGE, SPRING, PT. NO. 2520-2700, L.H. 480-515 R.H. 515-545, 1600 1700, A12390 A12391 2700-2880, L.H. 515-545 R.H. 550-580, 1700 1800, A12391 A12392 2880-3060, L.H. 550-580 R.H. 585-615, 1800 1900, A12392 A12393 3060-3250, L.H. 585-615 R.H. 620-650, 1900 2000, A12393 A12394 CHASSIS 2731 ON - EQUAL REAR SPRINGS RANGE of WEIGHT, STIFFNESS RANGE, SPRING, PT. NO. 2520-2700, 513-548, 1700, A12390, A12391 2700-2880, 548-583, 1800, A12391, A12392 2880-3060, 583-618, 1900, A12393 3060-3250, 618-652, 2000, A12394 DESIRED REAR AV. STIFFNESS WEIGHT, 1701-2300, 2301-2730, 2731 ON 2440, 533, 498 2460, 537, 503 2480, 541, 507 2500, 545, 511 2520, 549, 515 2540, 554, 519 2560, 558, 523 2580, 562, 527 2600, 566, 531 2620, 570, 535 2640, 575, 538 2660, 579, 543 2680, 583, 547 2700, 587, 551 2720, 591, 555 2740, 596, 559 2760, 600, 563 2780, 604, 567 2800, 608, 571 2820, 612, 575 2840, 617, 579 2860, 621, 583 2880, 625, 587 2900, 630, 591 2920, 634, 595 2940, 638, 599 2960, 642, 603 2980, 647, 607 3000, 651, 611 3020, 655, 615 3040, 659, 619 3060, 664, 623 3080, 668, 627 3100, 672, 631 3120, 676, 635 3140, 681, 639 3160, 685, 643 [STAMPED TEXT]: DEC 12 1930 TITLE BLOCK: Drawn by: [Signature] Traced by: [Signature] Checked by: [Signature] Approved by: [Signature] Limits Model Sec. Weight Date: 1-29-30 ROLLS-ROYCE OF AMERICA, INC. N. E.{Mr Elliott - Chief Engineer} B. P. CO. SCALE HEAT TREAT BRINELL STANTON TITLE: SPRING CHART (LONG TYPE REAR ONLY) MACHINE ALL OVER MACHINE WHERE MARKED MATERIAL SPECIFICATION NO. OFF. DRAWING NO. A14835. | ||