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 noise testing of a ventilated dynamo fitted to chassis 21-G-IV.
| Identifier | ExFiles\Box 168a\3\ img171 | |
| Date | 15th March 1935 | |
| To Hs{Lord Ernest Hives - Chair}/Wst. [Redacted] [Redacted] 6037 Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}3/KW.15.3.35. 21-G-IV. We have fitted the ventilated dynamo to 21-G-IV and tried it for noise. There is a heavy note when the dynamo is charging which is electrical as demonstrated to you. The ventilating fan appears to be quiet as was demonstrated by cutting out the excitation of the machine. [Signature] Hs{Lord Ernest Hives - Chair}/G.W.Hancock. | ||