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).
Listing several experiments to be cancelled.
| Identifier | ExFiles\Box 77\1\ scan0006 | |
| Date | 5th June 1918 | |
| X.2944. EFC/AT5.6.18. The following experiments may now be cancelled.- X.2974.- Ricardo type pistons. X.3026.- Air Compressor for maintaining power at high altitude X.3163.- Water pump spring drive. X.3226.- 5.75" Stroke Crankshaft. X.2423A/B/C. Wear on crankshaft run with Castrol & Sternol with different oil pressures. EFC. | ||