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).
Log of design and drawing statuses for Spectre 12-Cylinder Engine components.
| Identifier | ExFiles\Box 30\4\ Scan184 | |
| Date | 12th May 1934 | |
| - 14 - BY.1/G.12.5.34. SPECTRECodename for Phantom III 12-CYL. ENGINE. R.Sch.4030 Rear Engine Mounting & Tie Link ....... Recd. 1.5.34. Detail drawings completed and issued ..... 10.5.34. LeC.3824 Rear Wheel Arches ................... Recd. 21.3.34. Detail drawings not required. LeC.3826 Layout of Frame Transmission & Springs . Recd. 21.3.34. Frame Sides detailed for quotation. LeC.3834 Front Engine Suspension .............. Recd. 19.3.34. Detail drawings completed and issued ... 13.4.34. LeC.3837 Modfn. to Oil Relief Valves & Pressure Filter.Recd.19.3.34. Detail drawings completed and issued ... 28.3.34. LeC.3839 Facings on Crankcase for Front Bearer Arms.Recd. 20.3.34. Detail drawings completed and issued ... 27.3.34. LeC.3844 Modfn. to Oil Gallery Pipe ............ Recd. 22.3.34. Detail drawings completed and issued ... 20.4.34. LeC.3849 Valve & Tappet Springs ................ Recd. 29.3.34. Detail drawings completed and issued ... 19.4.34. LeC.3851 By-pass Pipe for Water Temperature Regulator.Recd.24.3.34. Detail drawings are in hand. LeC.3853 Modified Plunger for Auto. Adj. Tappets. Recd. 11.4.34. Detail drawings completed and issued ..... 19.4.34. LeC.3855 Inlet Valve Lift Curve ................ Recd. 29.3.34. Detail drawings completed and issued ..... 11.4.34. LeC.3856 Exhaust Valve Lift Curve .............. Recd. 29.3.34. Detail drawings completed and issued ..... 11.4.34. LeC.3858 Modification to Dynamo Drive ........ Recd. 29.3.34. Detail drawings completed and issued ..... 6.4.34. LeC.3882 Anti-Surge Flap Valve Oil Sump ........ Recd. 21.4.34. Detail drawings completed and issued ..... 5.5.34. | ||