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).
Letter from W. H. Colt Ltd. apologising for a delay and providing fan performance data for a Bonnet Ventilator.
| Identifier | ExFiles\Box 135\1\ scan0017 | |
| Date | 10th March 1932 | |
| 81509. W. H.{Arthur M. Hanbury - Head Complaints} COLT, LTD. BETHERSDEN NEAR ASHFORD - KENT - TELEPHONE BETHERSDEN 6 TELEGRAMS COLT BETHERSDEN KENT BUSH HOUSE ALDWYCH LONDON, W.C.2 LONDON DIRECTOR: I. J.{Mr Johnson W.M.} O'HEA, F.C.I.S. TELEPHONE AND TELEGRAMS TEMPLE BAR 5112 EXTENSIBLE UNITS WHC/KH/K March 10th, 1932. Messrs Rolls-Royce Derby. RECEIVED 11 MAR 1932 Dear Sirs, For the attention of Mr. Lidsey. I must apologise for the delay in replying to your last letter of February 13th regarding Bonnet Ventilator. This is due entirely to illness and I hope to be able to advise you that I can return to you the fan for your Phantom Model ( 40/50 h.p.) within the course of a week. In the meantime I am able to inform you that at 864 revolutions 28% more air was passed through the fan with a simultaneous lowering of h.p. consumption, amounting to 14% Once more apologising for the delay I remain With compliments, Yours faithfully, pp COLT VENTILATION LTD. | ||