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 for re-assembling a B.III NO.4 unit to compare its standard head against an adapted B.III head.
| Identifier | ExFiles\Box 155\2\ scan0221 | |
| Date | 21th May 1938 | |
| -5- Rm {William Robotham - Chief Engineer} /Swdl. {Len H. Swindell} 7/MH. {M. Huckerby} 21.5.38. B.III NO.4 This unit isto be re-assembled to compare its existing std. head against B.III head which can be adapted by leaving out several studs. Comparison to consist of max. power non detonating power with std. silencer and spark advance. Rm {William Robotham - Chief Engineer} /Swdl. {Len H. Swindell} | ||