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).
Selection and arrangement of instruments for the P.2 L.H. instrument board.
| Identifier | WestWitteringFiles\U\2January1930-September1930\ Scan121 | |
| Date | 14th May 1930 | |
| FROM DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} C. to WH. HS.{Lord Ernest Hives - Chair} C. to OY. SRW [Struck through] P. 2. L.H. INSTRUMENT BOARD. OY. discussed the question of instruments and the instrument board for P.2. L.H. with us here yesterday. There seem to be two separate issues - (1) what to fit on the 2nd. L.H. P.2. 25-EX., (2) what shall be the final arrangement of instruments. (1) 2nd. P.2. L.H. We are making an arrangement of instrument board which will be despatched to you tomorrow. It is proposed to fit the following:- (a) Petrol gauge - like the American gauge in all its external dimensions - drawing A-14158. size 3. but with a balance pipe fitted in a manner very similar to that of the American oil gauge - A-14549. size 3. We understand from OY. that Major T.P. Searight of the Hobson Co. can produce you such a gauge in a few days. Failing obtaining this gauge we shall have to use the gauge as supplied by America, without the balance pipe. (b) Ammeter - use the American ammeter which is not a moving coil instrument on this car. (c) Oil gauge - use American oil gauge. (d) Thermometer - use American temperature gauge. Although this has no electrical connections for operating the red lamp the instrument has some special features which might be improvements upon ours, namely, the type of flexible pipe, and system of mounting in the cyl. head. (e) Clock - use Seth Thomas clock. OY. will try to get a 12 V.{VIENNA} instrument, but failing that we suggest that on this car a 6 V.{VIENNA} instrument be used, and a special lead be brought up to it from half the battery. (f) Speedometer - American. (g) Red lamp - design will be sent from WW. It should be fitted to the patch, although in this case no connections can be made to it owing to the American thermometer being used. (h) Controls. ) (i) Pump. ) Slightly modified designs, not (j) Magneto. ) scrapping any existing pieces, will (k) Starter switch. ) be shewn on the scheme we are sending (l) Main switch. ) you, to make them suitable for the American board. (1) | ||