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).
Clearance checks for a new pattern of snow chain on Experimental Phantom III cars.
| Identifier | ExFiles\Box 128\3\ scan0182 | |
| Date | 9th April 1937 | |
| 1109 To Ev.{Ivan Evernden - coachwork} Rm{William Robotham - Chief Engineer}/WD.{Mr Wood/Mr Whitehead}24/JH.9.4.37. Re Snow Chains. We have checked the new pattern of snow chain and find that the chain stands off the tyre a distance of approx. 3/4". We should prefer a little more than the extra half an inch which you propose giving, to allow for chain slack. We give below the tyre to mudguard clearances of our present Experimental Phantom lll cars. :- Distance from Wing tip to Tyre. 32-EX O.S. 1 1/4" N.S. 2 1/4". 36-EX O.S. 2 1/4" N.S. 1 3/4". 37-EX O.S. 2 1/4" N.S. 1 3/4". Rm{William Robotham - Chief Engineer}/F.Dodd. Attached your copy of memo. received from Hn.{F. C. Honeyman - Retail orders} | ||