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).
Request to taper off the rotor blades at the inlet for the supercharger from the B-12 Unit.
| Identifier | ExFiles\Box 140\1\ scan0187 | |
| Date | 16th July 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} X209 Hs{Lord Ernest Hives - Chair}/Smth.2/KW.16.7.35. Supercharger off B-12 Unit. Whilst this unit is in the shop, will you please taper off the rotor blades at the inlet as you did on the supercharger on B-14. Hs{Lord Ernest Hives - Chair}/Smth. | ||