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).
Proposal for car springing, with calculations for maximum and minimum spring loads.
| Identifier | WestWitteringFiles\I\October1922\ Scan14 | |
| Date | 1st October 1922 | |
| (4) SPRINGING OF CARS. We propose to spring for all the fixed weights and for 50% of the variable weight (full load) for rear springs. MAXIMUM SPRING. Front axle and spring - 260 lbs. Rear axle and spring - 400 lbs. FRONT. REAR. TOTAL. LBS LBS LBS Fixed load of body. 310. 690. 1000. Spares. 20. 129. 149. Chassis less unsprung weight.880. 664. 1544. 50% of variable passengers & luggage. 104. 346. 450. TOTAL 1314. 1829. = 657. 915. MINIMUM SPRINGS. Fixed body loads. 200. 360. 560. Spares. 20. 129. 149. Chassis less unsprung weight.880. 664. 1544. 50% of variable load. 57. 355. 412. TOTAL 1157. 1508. = 578. 754. PROPOSED RANGE OF FRONT & REAR SPRINGS. Front. 450 lbs.} 550 " } +- 25 LBS LIMITS 650 " } Rear. 600 lbs.} 700 " } 800 " } +- 25 LBS LIMITS. 900 " } [Stamp: FHS OCT 1922] | ||