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 modifications and new components for the Spectre 12-Cylinder Engine.
| Identifier | ExFiles\Box 133\4\ scan0044 | |
| Date | 12th June 1935 | |
| - 13 - SPECTRECodename for Phantom III 12-CYL. ENGINE. N. Sch. 4478 I.F.W.S. raised 1.000"....................... Recd. 2.5.35. Detail drawings completed and issued ........ 31.5.35. N. Sch. 4480 Experimental Oil Feed to 3rd Motion Shaft - Gearbox .................................... Recd. 4.5.35. Detail drawings not required. N. Sch. 4484 Spring Mechanism for I.F.W.S. ................. Recd. 10.5.35. Detail drawings completed and issued ........ 27.5.35. N. Sch. 4485 Jack Pad & Front Stabilizer for 3rd. SpectreCodename for Phantom III. Recd. 14.5.35. Superseded by N. Sch. 4499. N. Sch. 4489 Caged Timken Bearing for Roller - Marles Steering ..................................... Recd. 11.5.35. Not to be detailed at present. N. Sch. 4492 Modfns. to simplify the removal of Steering (Marles Type) ................................ Recd. 14.5.35. Detail drawings completed and issued ........ 23.5.35. N. Sch. 4493 Retaining Ring for Filter in Gov. Control Filler Spout ................................. Recd. 17.5.35. Detail drawings completed and issued ........ 5.6.35. LeC. 4497 32-EX. Front Bumper & Fixing .................... Recd. 20.5.35. Detail drawings completed and issued ........ 25.5.35. LeC. 4498 32-EX. Front Bumper ............................Recd. 20.5.35. Detail drawings completed and issued ........ 25.5.35. LeC. 4502 Front & 3rd. Body Brackets ......................Recd. 22.5.35. Detail drawings completed and issued ........ 6.6.35. LeC. 4507 Deeper Rubber for Front Engine Mounting. ...... Recd. 24.5.35. Detail drawings completed and issued ........ 30.5.35. N. Sch. 4497 Modified Bell Crank Steering Lever and Radiator Mounting. Front of Car raised 1.00" ...... Recd. 22.5.35. Detail drawings completed and issued ........ 30.5.35. N. Sch. 4498 Lightened Selector Shafts and Servo Drive Shaft. Recd. 21.5.35. Detail drawings completed and issued ........ 1.6.35. | ||