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).
Specification and stock sheet for front and rear springs used on 20 HP models.
| Identifier | ExFiles\Box 106\1\ scan0102 | |
| Date | 1st May 1927 | |
| TITLE: 20 HP SPRINGS. COLUMN HEADERS: PIECE Nº | DESCRIPTION | CAMBER AT REST | TYPE OF EYE | MAKER (W=WOODHEAD F=FIRTH) | WHERE MAY BE USED & SERIES | RE-ORDER? | MINIMUM STOCK (DERBY) TABLE DATA: SECTION: FRONT. WITHOUT FWB F50881 | 38 x 15 Pos | 2.65 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | W | ALL WITHOUT F.W.B MAY BE REPLACED BY ANY LATER TYPE | No | F50902 | 38 x 15 Pos | 2.65 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | FRR CLIPS | ALL WITHOUT F.W.B MAY BE REPLACED BY ANY LATER TYPE | No | F53163 | 38 x 15 Pos | 2.65 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | FW CLIPS | ALL WITHOUT F.W.B | YES | 6 EACH 650 - 700 F53039 | 38 x 15 Pos | 2.15 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | FW CLIPS | ALL WITHOUT F.W.B WHEN 20% STIFFER SPRING IS REQUIRED | YES | 4 EACH 650 - 700 SECTION: FRONT WITH FWB F53523 | 38 x 5 Pos | 2.5 | FORGED CENTRAL BOTH ENDS | FW CLIPS | ALL CHASSIS WITH F.W.B | YES | PRODUCTION SECTION: REAR. ALL TYPES F50286 | 56 FLAT | 5.125 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | W | MAY BE REPLACED BY F53169 WHEN STOCK EXHAUSTED | No | F51908 | 56 FLAT | 5.125 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | FRR CLIPS | MAY BE REPLACED BY F53169 WHEN STOCK EXHAUSTED | No | F53104 | 56 FLAT | 5.125 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | FRR CLIPS | MAY BE REPLACED BY F53169 WHEN STOCK EXHAUSTED | No | F53169 | 56 FLAT | 5.125 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | FW CLIPS | PRESENT PRODUCTION. (STANDARD DEFLECTION) | YES | PRODUCTION F53045 | 56 FLAT | 4.0 | FRONT FORGED (Annotation: CENTRAL), REAR ROLLED UP (Annotation: CENTRAL) | FW CLIPS | PRESENT PRODUCTION. (20% STIFFER) | YES | PRODUCTION BOTTOM RIGHT CORNER: STAMP: ROLLS-ROYCE LIMITED HANDWRITTEN: J.P.D.C. May 1927 HANDWRITTEN: May/27 TABLE: Nº OF SHEETS: 1 2 | SHEET Nº: 2 DOCUMENT NUMBER: 2 R 1850. | ||