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 drawing statuses for the Spectre 12-Cylinder Engine and related components.
| Identifier | ExFiles\Box 133\4\ scan0040 | |
| Date | 12th June 1935 | |
| - 9 - HY.{Tom Haldenby - Plant Engineer}12/G.12.6.35. SPECTRECodename for Phantom III 12-CYL. ENGINE. N.Sch.4397 Modified Front Axle Control ......... Recd. 4.3.35. Detail drawings completed and issued ........ 16.3.35. LeC.4224 Air Inlet Scoop for Dashboard ...... 31-EX ... Recd. 2.3.35. LeC.4382 Body Brackets & Mounting. 32-EX. ............ Recd. 2.3.35. Detail drawings not required. LeC.4391 Side Spare Wheel Carrier ............ Recd. 7.3.35. Detail drawings completed and issued ........ 27.3.35. R Sch.846 Distributor with Bentley Type Contact Finger. Detail drawings completed and issued ........ 3.5.35. RR. Sch.848 Mod. Switchbox. To clean up face for enamelling.Recd Detail drawings completed and issued ........ 15.5.35. LeC.4394 Radiator Support & Crossmember for Conventional Front End ......................... Recd. 25.3.35. LeC.4399 Front Crossmember for Conventional Front End. Recd. 25.3.35. LeC.4404 Front Dumb Iron & Spring Shackle ............ Recd. 25.3.35. LeC.4420 Spring Controlled Rear Shackle - Front Springs... Recd. 25.3.35. LeC.4426 Rear Anchorage for Front Springs, Lt.Hd.{Mr Hayward/Mr Huddy} Side of Car ............................... Recd. 25.3.35. LeC.4432 Front Buffer ........................ Recd. 25.3.35. LeC.4434 Radiator Suspension - Conventional SpectreCodename for Phantom III .... Recd. 25.3.35. N.Sch.4400 Front Brake Adjusters etc. Front Axle ..... Recd. 9.3.35. N.Sch.4409 Shock Damper & Side Steering Geometry ....... Recd. 9.3.35. N.Sch.4410 Brake Gear Damper & Front Brake Intermediate Lever.Recd. 9.3.35. N.Sch.4416 Diagram of Brake Leverages - Convent'l Front Axle. Recd.14.3.35. N.Sch.4417 Oil Catcher & Drain Hole and stronger Pull-off Springs (Front Axle) .................... Recd.14.3.35. N.Sch.4420 Modn. to Outer Carrier Plate ............ Recd.15.3.35. N.Sch.4425 Brake Stops & Additional Pull-off Springs for Front Brakes .......................... Recd.19.3.35. These schemes are not being detailed at present. LeC.4395 Front End of Frame Conventional Springs ..... Recd. 9.3.35. Detail drawings completed and issued ........ 13.5.35. LeC.4397 32-EX. Front & Centre Step Irons ............ Recd. 25.3.35. Detail drawings completed and issued ........ 30.5.35. LeC.4400 Larger Oil Pump ..................... Recd. 9.3.35. Detail drawings completed and issued ........ 28.3.35. | ||