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).
Proposals for routing the H.T. wire for the Goshawk 11 magneto ignition, including a sketch.
| Identifier | WestWitteringFiles\K\July1923\ Scan13 | |
| Date | 7th July 1923 | |
| TO HS.{Lord Ernest Hives - Chair} FROM E.{Mr Elliott - Chief Engineer} c. to GJ. BY.{R.W. Bailey - Chief Engineer} GOSHAWK 11. MAGNETO IGNITION. X. 3551 K4078 Regarding the manner in which the H.T. wire from the standby magneto shall be conveyed to the battery distributor our proposal is that the cross over to the R.H. side of the engine to begin with at the rear end underneath the dashboard, and just above the magneto control shaft. This will leave perfect freedom for the valve gear cover on the cyl. head to be removed. After this it is difficult to see quite which is the best way to go, as unfortunately there is no Goshawk here at the moment. Mr. Royce would therefore like you to have a look at the car and try and rig up a wire in the following position and to tell us if you think the scheme is possible. The idea is to carry a fibre tube by means of the mixture control bracket on the rear end of the cyl. block. This fibre tube will proceed forward parallel to the engine and pass just underneath the carburetter throttle. On reaching the water inlet elbow it has to make an upward loop, and the idea is to put on a little bakelite fitting at this point which will carry the wire over the water inlet elbow and discharge it in the right direction for being carried in a socket near the ignition tower - see sketch below. [Sketch of engine part with label 'STANDBY SOCKET'] We should be glad if you would let us have this information at the earliest possible moment as we have the design work in hand. We hope to send you the magneto bracket on Monday. If it is not possible to come along the engine in the manner suggested, the alternative is to carry a 1/2" fibre tube along the frame on the R.H. side of the chassis. E.{Mr Elliott - Chief Engineer} (CE) | ||