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).
If louvered bonnets are more effective at preventing overheating than making bonnet shutters larger.
| Identifier | ExFiles\Box 119\3\ scan0079 | |
| Date | 15th October 1921 | |
| R.R. 235B (100 T) S.H. 89. 22-7-20 G 2769 81085- To EP.{G. Eric Platford - Chief Quality Engineer} From Hs.{Lord Ernest Hives - Chair} c. to BY.{R.W. Bailey - Chief Engineer} c. to E.{Mr Elliott - Chief Engineer} c. to Mr. Hs{Lord Ernest Hives - Chair}2/LG15.10.21. RE. OVERHEATING. X3427 V766 With reference to the louvred bonnets, we suggest that before there is any Works Conference on this matter it would be interesting to know from Paris why they require Louvred Bonnets and whether they can give us any information to prove that with the louvred bonnet there will be less over-heating. For instance, if this can be confirmed, we ought to be able to arrive at the same thing by making the shutters in the bonnets larger. Hs.{Lord Ernest Hives - Chair} | ||