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 engineering jobs and drawing completion dates for the Spectre 12-cylinder engine and other chassis components.
| Identifier | ExFiles\Box 30\4\ Scan300 | |
| Date | 4th October 1934 | |
| - 14 - BY.1/G.4.10.34. SPECTRECodename for Phantom III 12-CYL. ENGINE. LeC. 4020 Head Lamp Fixing and Wing Stay ................. Recd. 10.7.34. Detail drawings completed and issued ................ 6.8.34. LeC. 4022 Cylinder Liner in Austenitic Steel .......... Recd. 4.7.34. Detail drawings completed and issued ................ 11.7.34. LeC. 4029 Lightened Fan Hub and Pulley .................. Recd. 7.7.34. Detail drawings completed and issued ................ 18.7.34. LeC. 4032 Modfns. to Crankshaft to reduce weight ........ Recd. 11.9.34. Detail drawings completed and issued ................ 26.9.34. LeC. 4039 Pressure Plate Retaining Device - Spring Drive ... Recd. 13.7.34. Detail drawings completed and issued ................ 20.7.34. LeC. 4050 Lightened Camshaft Wheel ....................... Recd. 20.7.34. Detail drawings completed and issued ................ 27.7.34. LeC. 4051 Fan Pulley ..................................... Recd. 20.7.34. Detail drawings completed and issued ................ 27.7.34. N. Sch. 4113 Suggested Layout of Front Wings & Valances ..... Recd. 3.7.34. Detail drawings completed and issued ................ 25.7.34. N. Sch. 4115 Suggested Layout of Front Wings & Valances ..... Recd. 3.7.34. Detail drawings completed and issued ................ 25.7.34. N. Sch. 4116 Front Brake Equaliser - Side Steering Lever etc. Recd. 30.6.34. Detail drawings completed and issued ................ 25.7.34. N. Sch. 4117 Modified Side Steering Tube - Front ............ Recd. 30.6.34. Detail drawings completed and issued ................ 25.7.34. N. Sch. 4118 Suggested Layout of Front Wings & Valances (Front View) .................................... Recd. 3.7.34. Detail drawings completed and issued ................ 25.7.34. N. Sch. 4120 Modfn. to clear Selector Mechanism ............. Recd. 5.7.34. Detail drawings completed and issued ................ 16.7.34. N. Sch. 4121 Rear Axle Gear - 8/34 Ratio .................... Recd. 5.7.34. Detail drawings completed and issued ................ 30.8.34. | ||