List of experimental departments with corresponding department numbers and supervisor initials.
| Identifier | ExFiles\Box 142\1\ scan0247 | |
| Date | 12th October 1938 guessed | |
| -12- Dept.No. Department Supervisor. Experimental Departments 470 General in Experimental HPS {Horace Percy Smith - Experimental Factory Mgr} 471 General machining HPS {Horace Percy Smith - Experimental Factory Mgr} /WB {Mr Brazier / Mr Bell} 472 Miscellaneous Reqs; HPS {Horace Percy Smith - Experimental Factory Mgr} /WB {Mr Brazier / Mr Bell} 473 Main engine beds Lr {Mr Ellor} /ACL. 474 Single Cylinders Lr {Mr Ellor} /Psn 475 Aero electrical Lr {Mr Ellor} /Wst 476 Supercharger testing Lr {Mr Ellor} /ALN 477 C.I. and Marine Engines Wd. {Mr Wood / Mr Whitehead} 478 Hucknall Lr {Mr Ellor} /Dor. {Mr Dorey} 479 Chassis Experimental Rm. {William Robotham - Chief Engineer} | ||
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).