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).
List of specifications and modifications for various vehicle components including springs and steering.
| Identifier | ExFiles\Box 92\6\ scan0039 | |
| Date | 20th October 1936 | |
| -2- Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}14/KW.20.10.36. Wing Stays. LOP. F.87366. Complete to the above LOP - Standard Production. Front Apron LOP. F.87519. Complete to the above LOP - Standard Production. Front Bumpers LOP. F.88286. Complete to the above LOP - Standard Production. Rear Springs and Fittings. LOP. F.87604, except for - ('A' series Production) 5 plate stiffer type spring F.84654. Front eyes on C.L. of top plate instead of .750 offset. This means that the alum. shackle covers cannot be used. Front eye is .100 narrower. Bush F.86234 should be shortened by this amount to suit, and space in anchorage bracket taken up by using F.86783-7. Taking into consideration the decreased thickness or depth of 5 plate spring, (1.000) and the difference in camber compared with 'A' series spring (.075), the connecting tubes will be .925 too long. Unless suitable packing is placed under spring to lower the spring plate. If this is done and rubber pads are not used, the bolt required will be F.87754/5 to suit. Steering Column and Box LOP. F.88992. Complete to the above LOP. incorporating :- F.89139 Control Quadrant in A/F.{Mr Friese} FW.145 cover produced in Dural. FW.414 Sleeve " " F.54137 Cover " " FW.412 Outer Tube " 18 SWG. (.048). Rm.{William Robotham - Chief Engineer}239 Bottom Flange. Lec.5256 Revised Steering positions to improve visibility. Rm.{William Robotham - Chief Engineer}204/5 layout of Wraith II steering gear. Side Steering Tube. Modified to incorporate Wraith ball ends. | ||