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).
'booming' noise on experimental car 2300 and the inapplicability of a suggested cure due to the car's body construction.
| Identifier | ExFiles\Box 3\1\ 01-page109 | |
| Date | 8th December 1913 | |
| Wor{Arthur Wormald - General Works Manager}/JMS/L81213. Re Body "Booming". X.971. J.{Mr Johnson W.M.} 8-12-13. EP.{G. Eric Platford - Chief Quality Engineer}c. We received a copy of Mr Spinney's suggested cure for booming, and it was our intention to try this on our experimental car 2300 which had been reported as being a very bad boomer, but we now find that this is impossible because the body is of quite different construction to the kind of body to which Mr Spinney refers. The roof is not made of wood but is of sheet metal lined with cloth. Also the back panels and part of the quarter panels are made of leather tightly stretched, and the booming on this particular car appears to be caused by these leather panels and not by the roof. We referred the matter back to Mr Spinney and he has confirmed that his cure is not applicable to this car, but suggests that the booming in this case might be prevented by taking the stiffness out of the leather panels, as these being tightly stretched like the vellum of a drum are doubtless (Cont'd overleaf by typist) with ms | ||