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).
On preliminary tests for the Phantom II suspension, specifically concerning rear axle movement on rebound.
| Identifier | WestWitteringFiles\U\August1930-November1930\ Scan197 | |
| Date | 17th November 1930 | |
| To. R.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/AJL. c. to Eg. Wor.{Arthur Wormald - General Works Manager} c. to Ds. E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} PHANTOM II SUSPENSION - REAR AXLE MOVEMENT. We have carried out some preliminary tests to demonstrate the effect of restraining the rear axle on the rebound, the ultimate object of reducing the axle movement is to permit of the use of reduced length of hydraulic shock damper arm with consequent smaller loads and pressures on all damper parts. The method of restraining the axle was somewhat crude, but effective. A wire rope sling, adjustable in length by means of a turnbuckle was bolted to the chassis frame at each side of the rubber buffer. The sling passed under the axle tubes close to the spring fixing. Cushioning was provided by clamping rubber blocks to the under side of the axle tube. [Text from diagram] WIRE ROPE SLING RUBBER CLAMPED TO AXLE TUBE. The normal buffer clearance on maximum rebound is | ||