Order request for two types of diabolo rubbers for the 20 HP model, with specific deflection and load requirements.
| Identifier | ExFiles\Box 27\4\ Scan217 | |
| Date | 30th August 1930 | |
| O.C. From Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} X 30387 Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} 1/MJ.30.8.30. Y5005 Will you please order the following diabolo rubbers for the 20 HP. - Two doz. Rubbers to F.57075 to deflect .1" under a load of 150 lbs. approx. Two doz. Rubbers to F.57075 only over all length to be 1.250 to give .200 deflection under a load of 400 lbs. approx. We want the rubbers as quickly as possible and in consequence are prepared to give Messrs. Dunlops a certain amount of latitude on the hardness of the rubber. Having tested them we may tell them more exactly what we require. Hs {Lord Ernest Hives - Chair} /Rn. {Mr Robinson} | ||
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).