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).
List of modifications and completed drawings related to the Spectre 12-Cylinder engine.
| Identifier | ExFiles\Box 133\4\ scan0039 | |
| Date | 12th June 1935 | |
| - 8 - SPECTRECodename for Phantom III 12-CYL. ENGINE. LeC. 4386 Modfn. to Oil Temperature Regulator ............ Recd. 4.3.35. Detail drawings completed and issued ............ 27.3.35. N. Sch. 4380 Modified Front Brake Linkage for Brakes with Bentley Type Adjuster ...................... Recd. 21.2.35. Detail drawings completed and issued ............ 11.4.35. N. Sch. 4386 Intermediate Lever for Front Brakes with Bentley Type Adjuster ...................... Recd. 22.2.35. Detail drawings completed and issued ............ 30.3.35. N. Sch. 4389 Rear Foot Brake Shoes - Rolled Steel Section. Recd. 28.2.35. Detail drawings completed and issued ............ 29.3.35. N. Sch. 4390 Horizontal Hand Brake Lever & Gear Lever to suit ........................................ Recd. 28.2.35. Detail drawings completed and issued ............ 24.5.35. N. Sch. 4391 Front Axle Control .......................... Recd. 4.3.35. Detail drawings completed and issued ............ 21.3.35. N. Sch. 4392 Front Brake Shoes - Rolled Steel Section .... Recd. 28.2.35. Detail drawings completed and issued ............ 30.3.35. N. Sch. 4395 Front Brake Operation ........................Recd. 6.3.35. Detail drawings completed and issued ............ 16.3.35. N. Sch. 4398 D.W.S. Permanent Jack mounted on Front Axle. Recd. 5.3.35. Detail drawings completed and issued ............ 16.3.35. N. Sch. 4399 Stiffened Front Brake Equaliser Lever ...... Recd. 6.3.35. Detail drawings completed and issued ............ 29.3.35. RR. Sch. 842 Main Fuse Fixing (Cartridge Type) .......... Recd. 4.3.35. Detail drawings completed and issued ............ 11.3.35. N. Sch. 4396 Front Brake & Pivot for Front Axle .......... Recd. 4.3.35. Detail drawings completed and issued ............ 16.3.35. N. Sch. 4394 Front Axle .................................. Recd. 4.3.35. Detail drawings completed and issued ............ 22.3.35. | ||