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).
Test results for Front Axle Springs, part number G.83270.
| Identifier | ExFiles\Box 95\3\ scan0177 | |
| Date | 20th November 1935 | |
| +346 LFS To BY from ROY.{Sir Henry Royce} Hs{Lord Ernest Hives - Chair}/Les ROY{Sir Henry Royce}1/MG20.11.35 Front Axle Springs - G.83270 The English Steel Corporation advise that the tests they made with such Springs ex the sample batch they delivered to these Works some 3 weeks ago gave the following results: Spring Part No. G.83270 Free Height. Specified. 8.15" Loaded Height. 5.087" 1st Test. Free Height. 8.15" Screwed down to 6.15" Deflection to 4.65" Working Stroke 1-1/2" Total hours worked 1st test 66. hours. 66/min Giving approximately 260,000 Deflections. 2nd Test. Free Height. 8.15" Screwed down to 5.9" Deflection to 4.15" Working Stroke. 1-3/4" Total hours worked 2nd test 55. hours. 65.5/min Approx No of Strokes 215,000. Meantime we have placed an order with Salters for 25 sets as it is quite impossible to wait any longer until the tests the Experimental Shop are carrying out with sample springs supplied by (a) Firths (b) English Steel Corporation are completed. You will recollect the sample Springs made by the English Steel Corporation are in Silico Manganese, in accordance with our standard practice. ROY{Sir Henry Royce} | ||