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).
Instructions and results for Falcon engine performance tests, before and after modifications.
| Identifier | ExFiles\Box 36\2\ scan 054 | |
| Date | 22th August 1917 | |
| R.R. 6 (450 T.) (SD 747 22-8-17) MP 181926 X2934 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Falcon Tests. 191 Order No. Customer's No. at first, under normal conditions the maximum power obtainable was R.P.M. H.P. 2200 --- 285 2000 --- 244 The four throttles were then bored out from 40 mms. to 42 mms: two 12 cylinder BTH. magnetos were fitted (giving dual ignition) and the valve timing on both sides was set about 3/8" late according to mark on annulus wheel: the power obtained then was R.P.M H.P. 2200 --- 295 2000 --- 283 Signed. This Sheet must be filed on completion of the work. | ||