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 detailing proposed modifications to a crankshaft and flywheel to reduce vibration and increase power, with an attached internal handwritten note.
| Identifier | ExFiles\Box 32\3\ Scan004 | |
| Date | 22th July 1912 | |
| Handwritten Note: for letter please send as arranged Also definite promise of what we have carried out with our latest car but will give attention on earliest convenience CE Typed Letter: August 1st. 1912. Messrs. Rolls-Royce Ltd., DERBY. Dear Sir, With reference to our conversation of yesterday, we enclose herewith diagrams for the modification of the R.S.C. flywheel, and also the drawing which you sent. We have now had an opportunity of examining this matter very closely, and are pleased to be able to state that the above-mentioned improvement should be a very practical demonstration of the vital importance of balancing. We would suggest that we should take out the whole of your present crankshaft and flywheel, and fit in their place a new set, which would be properly balanced, and at the same time we could see your way to a considerable increase of power, and as you would, of course, examine this arrangement, you would see how a great deal of the existing vibration would be removed. However, you are not to begin the test until you have examined and found a test of this character to be satisfactory, that you would in all probability be prepared to extend the test. We are putting the above modification before you before actually receiving a reply, but on receipt of this letter we will immediately forward the estimates and it is, of course, understood that our charge for same will be made. Assuring you of our best services at all times, we remain, Yours faithfully, | ||