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).
Specifying the components for C.A.V. switch boxes and the justification for the quantity ordered.
| Identifier | ExFiles\Box 51\2\ Scan043 | |
| Date | 10th November 1921 | |
| BY {R.W. Bailey - Chief Engineer} /C8/P10.11.21. contd. - 3 - 3 C.A.V. Switch Boxes, which should comprise, Dynamo Switch, Head, Side and Tail Lamp Switches, also if possible, Dynamo Field Fuse, but not cutouts. These switches should not include Volt Meter, or Ammeter, as we do not use the former, and the latter is fitted by us as a separate instrument. The reason why six sets in all are being ordered is that five are required for the chassis being produced in the Works and the remaining one set is required by the Experimental Department for the test bed engine. BY {R.W. Bailey - Chief Engineer} /C. | ||