Letter to Messrs Boulton & Paul regarding the reconciliation of fan power calculations.
| Identifier | ExFiles\Box 27a\3\ Scan183 | |
| Date | 8th April 1931 | |
| X4576. Expl. Dept. Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} 2/KT. 8th April 1931. Messrs Boulton & Paul.. Norwich. For the attention of Mr. North. Dear Sir, Replying to your M.8608 in which you state that the power required by a fan is .68 X 1/2pa {Mr Paterson} v^3 we are interested to know how you reconcile this theoretically with the calculations derived from the kinetic energy that must be imparted to the column of air, this latter being 1/2 pa {Mr Paterson} v^3. (p measured in slugs/ft^2). Yours faithfully, For Rolls-Royce Ltd. | ||
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).