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).
Progress report on modifications and drawings for the Spectre 12-Cylinder engine.
| Identifier | ExFiles\Box 30\3\ Scan064 | |
| Date | 19th January 1935 | |
| SPECTRECodename for Phantom III 12-CYL. ENGINE. - 13 - BY.1/G.19.1.35. N. Sch. 4275 Increasing Leverage of 1st. and 2nd. Speed Actuating Gear ...................... Recd. 29.11.34. Detail drawings completed and issued .................. 14.12.34. N. Sch. 4276 Marles Type Steering ................. Recd. 28.11.34. Superseded by N. Sch. 4291. N. Sch. 4280 'C' Steering - Steering Column Support Bkt. and Gastight Seal in Floorboards with Marles Type Steering .................................... Recd. 3.1.35. Detail drawings will be put in hand as soon as possible. N. Sch. 4281 Simplified Unit Construction Shock Damper, Simple Lever, I.F.W.S .................... Recd. 5.12.34. Detail drawings completed and issued .................... 2.1.35. N. Sch. 4282 Upper Half Steering Column (Marles Type) ..... Recd. 4.12.34. Detail drawings completed and issued .................... 8.1.35. N. Sch. 4283 Servo for Semi-Servo System, also of increased Diameter .................................... Recd. 3.12.34. Detail drawings completed and issued .................... 16.1.35. N. Sch. 4285 (31-EX). Modified Front Apron & Wings ...... Recd. 5.12.34. Detail drawings completed and issued .................... 5.1.35. N. Sch. 4286 Modfn. to Oilways in Gearbox, Doaphragm etc.... Recd. 4.12.34. Detail drawings completed and issued .................... 17.12.34. N. Sch. 4289 Alternative Methods of fixing Servo Fabrics ... Recd. 20.12.34. Detail drawings are in hand. N. Sch. 4291 Marles Type Steering (Revised) .............. Recd. 13.12.34. Detail drawings completed and issued .................... 20.12.34. N. Sch. 4293 Steering "Patch" in Frame moved back .500" to accommodate Marles Steering ................ Recd. 11.12.34. Detail drawings completed and issued .................... 20.12.34. N. Sch. 4296 Alternative Bearing Scheme for Roller Marles Type Steering ............................ Recd. 14.12.34. Detail drawings will be put in hand as soon as possible. N. Sch. 4298 Modfns. to the 2nd. Speed to prevent working out of mesh .................................... Recd. 14.12. Detail drawings completed and issued .................. 21.12. | ||