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).
The standardisation of a Pilot Jet to replace the Primer, noting successful trials.
| Identifier | ExFiles\Box 74\2\ scan0072 | |
| Date | 26th June 1922 | |
| EY. from Hs.{Lord Ernest Hives - Chair} RP. Da.{Bernard Day - Chassis Design} Sg.{Arthur F. Sidgreaves - MD} FH. EWT. for R.R. Inc. XC4387R Hs{Lord Ernest Hives - Chair}1/LG26.6.22. X.4387 :- PILOT JET TO REPLACE PRIMER. We attach copy of standardisation sheet in connection with the above experiment. Will you kindly remark upon, sign and return at your earliest convenience. We have now had considerable experience with the Pilot Jet. About 12 sets have been fitted to different cars. All of them have been successful. We have heard from Springfield that the Pilot Jet has effective overcome all their starting troubles. Hs.{Lord Ernest Hives - Chair} | ||