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).
Expense and practicality of mounting two synchronized electrical horns versus a single Lucas horn.
| Identifier | ExFiles\Box 59\3\ Scan178 | |
| Date | 23th June 1932 | |
| X6032 S/W Hs.{Lord Ernest Hives - Chair}/Wst. c. to PN.{Mr Northey} E.BY. Chassis Electrical Horns. Cx{Major Len W. Cox - Advertising Manager}19/KW23.6.32. Thank you for your Hs{Lord Ernest Hives - Chair}/Wst1/MA18.6.32. Your remarks are very interesting as to the mounting of two horns detuned and synchronised. The only objection I can see to the scheme is one of expense, as it means that we have to supply two horns instead of one. I don't think there is any necessity for us to do that at the present time when one of the Lucas H.F.No.722 seems to meet the case very well. In connection with this you will have a seen a copy of PN{Mr Northey}'s memo (PN{Mr Northey}3/WT22.6.32) which makes a suggestion which you may like-to act on in conjunction with Lucas'. Quite apart from the question of expense, which I think is undesirable, we could not give any approval until we had had an opportunity of hearing the horns and judging the effect and sound generally. WST Cx.{Major Len W. Cox - Advertising Manager} RECEIVED 1932 JUN 24 H | ||