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).
Preliminary list of prefix letters used with drawing numbers, Sheet No. 2.
| Identifier | ExFiles\Box 143\3\ scan0140 | |
| Date | 27th March 1940 guessed | |
| PRELIMINARY LIST OF PREFIX LETTERS IN USE WITH DRAWING NUMBERS. SHEET, NO. 2. PREFIX LETTERS. DEPARTMENT. GN. Detail Drawings. Aero Division. H.{Arthur M. Hanbury - Head Complaints} Tool Office and Equipment. Hr. Experimental Office drawings. Hs.{Lord Ernest Hives - Chair} Experimental Office Drawings. INS. Aero Installations. ID. Aero Installation. J.{Mr Johnson W.M.} Building Department. K, KB, KC, KD, KF. etc. Reserved for Standards. ooo/K.{Mr Kilner} Alterations to Standards. L. Cost Office. L.F. D.D.O.Schemes (Frame Section) Lr.{Mr Ellor} Aero Experimental Department drawings. LeC. Engine Design (Chassis and Aero) M.{Mr Moon / Mr Moore} Cost Office. M.{Mr Moon / Mr Moore} Tool Office (Milling) M.{Mr Moon / Mr Moore} Detail Drawings. Marine Division. M.Sch. Marine Designs. ooo/M.{Mr Moon / Mr Moore} Alteration to Marine Detail Drawings. ML. Multilith Plates(NW{N. Walker - Patents}) and (Da{Bernard Day - Chassis Design}/Ald{F. Allwood - Experimental Design}) N. N.Department. N.Sch. Chassis Design Drawings. O Not to be used - can be confused with Zero. P Cost Office. P Tool Office (Patterns) PD. Project Department (Chassis) PI. Schemes and Details for Petrol Injection Engines. ooo/PI. Alteration to Detail Drawings. Petrol Injection Engines. Q. Detail Drawings.(Armament Section) øøø/Q. Alterations to Detail Drawings and LOP's.(Armament Section) QS. Schemes (Armament Section) R.RS.{Sir Henry Royce's Secretary} Repair Department (Chassis) RD. Rationalised Chassis Drawings.(Electrical) RE. Rationalised Chassis Drawings.(Engine) RF. Rationalised Chassis Drawings.(Frame) RG.{Mr Rowledge} Rationalised Chassis Drawings.(Gearbox) Cont'd on Sheet No. 3. | ||