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).
Fitting redesigned trumpets to Lucas W.T.11 horns to resolve issues with snow and rain.
| Identifier | ExFiles\Box 166\9\ img044 | |
| Date | 1st February 1937 | |
| To HPS.{Horace Percy Smith - Experimental Factory Mgr} 6066 Rm{William Robotham - Chief Engineer}/Wst.3/JH.1.2.37. LUCAS W.T.11 Type Horns. We have received from the Makers, a pair of trumpets for the W.T.11 type of horn, which have been designed to overcome the trouble due to snow, or driving rain, building up in the flare. Will you please have these fitted to the horns on chassis 36-EX. Rm{William Robotham - Chief Engineer}/Wst. | ||