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).
Modification Rm.467, transferring the carburetter air bleed to the choke body.
| Identifier | ExFiles\Box 7\4\ X 608 Carburetter-page25 | |
| Date | 7th May 1938 | |
| -2- All carburetters require a modification Rm.{William Robotham - Chief Engineer}467, to the air bleed. At present the air to the idle system is taken direct from the floatchamber. This air bleed is now transferred to the choke body so that the idle system is sealed against any possible surge of fuel in the floatchamber. Rm{William Robotham - Chief Engineer}/GR.{George Ratcliffe} | ||