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).
Engineering specification and drawing status updates for the 3½ Litre Bentley Chassis and Spectre 12-Cyl. Engine.
| Identifier | ExFiles\Box 30\3\ Scan124 | |
| Date | 16th March 1935 | |
| - 12 - 3½ LITRE BENTLEY CHASSIS. N. Sch. 4370 Oil Drain for Front Brake Camshaft ................. Recd. 13.2.35. Detail drawings completed and issued .............. 19.2.35. N. Sch. 4375 Gear Change Lever Gate on Frame ............ Recd. 19.2.35. Detail drawings are in hand. RR. Sch. 834 Oil & Thermometer Pipes (Eng. Rubber Mounting). Waiting approval before detailing. LeC. 4350 Crankshaft with Stiffened Rear Journal and Narrow Crankpins ........................ Recd. 27.2.35. Detail drawings not required. LeC. 4375 Petrol Cap Name Plate ..................... Recd. 27.2.35. Detail drawings completed and issued .............. 2.3.35. N. Sch. 4383 Clutch Operation - Lubrication to Anchor Link Pins ............................... Recd. 26.2.35. Detail drawings will be put in hand as soon as possible. SPECTRECodename for Phantom III 12-CYL. ENGINE. RR. Sch. 795 Piping & Wiring Conduits. RR. Sch. 701 revised (8 sheets). Detail drawings completed and issued .............. 15.2.35. LeC. 4262 Modified Controls to suit Marles Type Steering. Recd. 20.12.34. Detail drawings completed and issued .............. 3.2.35. LeC. 4275 Oil Pipes on 3rd. Crossmember ............ Recd. 31.12.34. Detail drawings completed and issued .............. 23.1.35. LeC. 4273 Mixture Control to suit new instrument board.... Recd. 2.1.35. Detail drawings completed and issued .............. 25.1.35. LeC. 4285 .250" Longer Piston Skirt ................ Recd. 4.1.35. Detail drawings completed and issued .............. 2.2.35. LeC. 4250 Steel Push Rod .......................... Recd. 14.12.34. Detail drawings completed and issued .............. 5.2.35. N. Sch. 4280 'C' Steering - Steering Column Support Bkt. and Gastight Seal in Floorboards with Marles Type Steering .............................. Recd. 3.1.35. Detail drawings completed and issued .............. 7.2.35. | ||