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 engineering modifications and arrangements for the Spectre 12-Cyl. Engine and Wraith Chassis.
| Identifier | ExFiles\Box 133\4\ scan0050 | |
| Date | 12th June 1935 | |
| - 2 - BY.13/G.12.6.35. SPECTRECodename for Phantom III 12-CYL. ENGINE. N. Sch. 4483 Modfn. to Foot Brake Bell Crank Lever to increase clearance with road springs ................. Recd.10.5.35. Detail drawings will be put in hand as soon as possible. LeC. 4492 Body Mounting. 33-EX. .................. Recd.22.5.35. Detail drawings are in hand. LeC. 4494 Oil Pressure Gauge Connection ............... Recd.15.5.35. Detail drawings will be put in hand as soon as possible. LeC. 4495 Argt. of Carbs. and Controls in the Vee ...... Recd.17.5.35. Detail drawings are in hand. LeC. 4506 Modified Engine Controls for Reversed Throttle Carbs .................................... Recd.27.5.35. Detail drawings will be put in hand as soon as possible. WRAITH CHASSIS. N. Sch. 4319 Flywheel & Single Plate Clutch ............ Recd. 5.1.35. Detail drawings will be put in hand as soon as possible. LeC. 4268 Layout of Frame Transmission & Springs ........ Recd. 22.12.34 Detail drawings will be put in hand as soon as possible. LeC. 4308 Modified Oil Supply to Rockers .............. Recd.15.1.35. Detail drawings will be put in hand as soon as possible. LeC. 4309 Radiator Top Water Connection ................ Recd.21.1.35. Detail drawings will be put in hand as soon as possible. LeC. 4310 Water Temperature Regulator ................ Recd.21.1.35. Detail drawings will be put in hand as soon as possible. LeC. 4321 Drive for Centrel Ignition Governor & Distributor.Recd. 31.1.35 Detail drawings are in hand. LeC. 4322 Ignition Coils & Wiring Tubes. Rt.Hd.{Mr Hayward/Mr Huddy} side of engine.Recd.31.1.35 LeC. 4323 Ignition Coils & Wiring Tubes.Lt.Hd.{Mr Hayward/Mr Huddy} side of engine and plan ............................... Recd. 31.1.35 Detail drawings will be put in hand as soon as possible. | ||