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).
Testing of engines without balance weights.
| Identifier | WestWitteringFiles\A\October1917\ Scan3 | |
| Date | 3rd October 1917 | |
| To EH. from R.{Sir Henry Royce} c. to By.{R.W. Bailey - Chief Engineer} c. to E.{Mr Elliott - Chief Engineer} c. to BJ. ORIGINAL RECEIVED 6 OCT 1917 R9/W3.10.17. St.{Capt. P. R. Strong} Margaret's Bay. Oct. 3rd. 1917. X 2950 X.2435. BALANCE WEIGHTS. With reference to your memo EH5/LG11017 regarding above, continue to test without balance weights, for instance X.3157 during the run with the new pump drive and the crankshaft with flaws, although on second thoughts, this may not be permissible because it will not be exactly the conditions of running of existing engines, we ought to run all tests of new programme engines without balance weights. R.{Sir Henry Royce} | ||