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).
The unsatisfactory test results for a pair of 'clear Hooter' horns, instructing their return to the makers.
| Identifier | ExFiles\Box 166\9\ img164 | |
| Date | 24th March 1938 | |
| To Roy.{Sir Henry Royce} c. to G/JWH. 6066 Rm{William Robotham - Chief Engineer}/RC.{R. Childs}16/JH.24.3.38. ✓ Re "clear Hooter" Horns. De-Luxe type No.CH.50. We have now examined the pair of above type horns, which were submitted by the makers on loan for our test. We find same not up to our standard requirements, neither with regard to volume of sound or tone. As we have no further use for these horns will you please return them to the makers. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||