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).
Modifying bonnet fasteners for the Phantom II model to prevent lifting on bad roads.
| Identifier | ExFiles\Box 12\7\ 07-page146 | |
| Date | 27th October 1930 | |
| 4260 BY.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/AJL. Hs{Lord Ernest Hives - Chair}/AJL.1/MJ.27.10.30. P.11. BONNET FASTENERS. We find that the Phantom ll bonnet lifts considerably when running over a bad road. This effect is most pronounced on cars having three point radiator mounting. The springs in the bonnet fasteners are not strong enough to hold the bonnet down. Will you please issue experimentally some stronger bonnet fasteners springs; we think they should have 100% greater load than the present ones if it is possible to get such a spring in the small space available. Another idea which might be tried experimentally is to retain the present spring and modify the fastener so that after engaging the catch in the normal way the knob, which would have a milled edge, can be screwed down the central spindle until the bonnet is held solidly. This would retain our present easy engagement of the catches and at the same time give a definite solid bonnet fastening. Hs{Lord Ernest Hives - Chair}/A.J.Lidsey. | ||