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 for front and rear spring clearances for a Phantom II chassis with special stiffer road springs.
| Identifier | ExFiles\Box 16\7\ Scan310 | |
| Date | 27th October 1930 | |
| K7410. T.D. Ep.{G. Eric Platford - Chief Quality Engineer} c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} BY/HEB{H. Biraben}6/M.27.10.30. PHANTOM II. CHASSIS. 41-GX. ETC.. & CHASSIS ON WHICH SPECIAL STIFFER ROAD SPRINGS ARE FITTED.(26-EX TYPE). FRONT & REAR SPRINGS - SECS:7020/30. RECEIVED 10 NOV 1930 Kindly note the Buffer to Axle clearances under load are as follows:- FRONT.:- Spring under load - .200 Neg: Buffer to Axle clearance (Std: Buffer) - 1.550 REAR.:- Spring under load - 1.130 Neg: Buffer to Axle clearance (Std: Buffer) - 2.520 4.15 3.850 1.130 ----- 2.720 BY/HEB.{H. Biraben} H2b | ||