Rolls-Royce Archives
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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 drawing schedule updates and modifications for the Spectre 12-Cylinder engine.

Identifier  ExFiles\Box 30\4\  Scan245
Date  14th July 1934
  
SPECTRECodename for Phantom III 12-CYL. ENGINE. - 20 - BY.1/G.14.7.34.

N.Sch.4091 Lightened Speedometer Drive Ports............ Recd. 14.6.34.
Detail drawings completed and issued ........ 6.7.34.

N.Sch.4092 Lubrication Coil - Frame to Steering Pivots etc. Front Susp............................ Recd. 14.6.34.
Detail drawings completed and issued......... 30.6.34.

N.Sch.4093 Clearances for 1st. Speed Wheel and S.M. Sleeve Bolts .............................. Recd. 14.6.34.
Detail drawings completed and issued ........ 26.6.34.

N.Sch.4096 Run of Brake Rope, Servo to Front Wheels. Recd. 18.6.34.
Detail drawings are in hand.

N.Sch.4097 Intermediate Lever, Front Brake Operation. Recd. 18.6.34.
Detail drawings will be put in hand as soon as possible.

N.Sch.4098 Locking Plate for Bearing Retaining Nut - Rear Hub. .................................. Recd. 18.6.34.
Detail drawings completed and issued ....... 28.6.34.

N.Sch.4100 Modfns. to Rear Brake Cross Ropes necessitated by Exhaust Swan Neck ................ Recd. 18.6.34.
Detail drawings are in hand.

N.Sch.4102 Universal Joint - Front End of Gearbox .... Recd. 19.6.34.
Detail drawings completed and issued ...... 26.6.34.

N.Sch.4104 Larger Layshaft Front End Bearing ......... Recd. 22.6.34.
Detail drawings completed and issued ........ 6.7.34.

N.Sch.4107 Mod. to Front End Thrust Washer Housing.J.3.Recd. 26.6.34.
Detail drawings completed and issued ....... 5.7.34.

N.Sch.4108 Layout of Bonnet Side and Rest Plate (Plan View).Recd. 26.6.34.
Waiting decision re size of catch.

N.Sch.4109 Layout of Bonnet and Rest Plate. (Elevation). 26.6.34.
Waiting decision re size of catch.

N.Sch.4111 Lubrication of Clutch Spigot Bearing ....... Recd. 26.6.34.
Detail drawings completed and issued ....... 5.7.34.

N.Sch.4112 Modfn. to Bolting of Spare Wheel Carrier Stay.Recd. 26.6.34.
Detail drawings completed and issued
  
  


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