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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).
Progress report on the design and drawing status of components for the Spectre 12-cylinder engine.

Identifier  ExFiles\Box 30\4\  Scan242
Date  14th July 1934
  
SPECTRECodename for Phantom III 12-CYL. ENGINE. - 17 - BY.1/G.14.7.34.

N.Sch.4045 Rear Brakes ............................. Recd. 11.5.34.
Detail drawings completed and issued ........ 28.6.34.

N.Sch.4046 Brake Equalisers on Rear Axle ............. Recd. 15.5.34.
Detail drawings are in hand.

N.Sch.4047 Servo and Linkage ........................ Recd. 18.5.34.
Detail drawings completed and issued ........ 27.6.34.

N.Sch.4048 Front & Rear Attachments of Cross ..... Recd. 18.5.34.
Detail drawings completed and issued ........ 6.6.34.

N.Sch.4049 Gear Shafts & Bearings - All Helical Gearbox .. Recd. 19.5.34.
Detail drawings completed and issued ........ 26.6.34.

N.Sch.4050 Rear Half Selector Mechanism .............. Recd. 28.5.34.
Detail drawings completed and issued ........ 26.6.34.

N.Sch.4051 All Helical Gearbox - Rear Half Side & End
Elevations ............................ Recd. 28.5.34.
Detail drawings completed and issued ........ 23.6.34.

N.Sch.4052 All Helical Gearbox - Rear Half Plan ....... Recd. 28.5.34.
Detail drawings completed and issued ........ 23.6.34.

N.Sch.4053 Yoke - Piece - Ind. Front Wheel Susp'n.
Inclined Wishbone Sys.................... Recd. 19.5.34.
Detail drawings completed and issued ........ 7.6.34.

N.Sch.4054 Diagram of Brake Leverages ................ Recd. 15.6.34.
Detail drawings not required.

N.Sch.4055 Cross Steering Arrgt ...................... Recd. 24.5.34.
Detail drawings completed and issued ........ 2.7.34.

N.Sch.4056 Rear Elevation. Inclined Wishbone Arrgt.I.F.W.S. Recd. 25.5.34.
Detail drawings completed and issued ........ 20.6.34.

N.Sch.4057 Inner Spring - Operating Lever. I.F.W.S. Recd. 23.5.34.
Detail drawings completed and issued ........ 6.6.34.

N.Sch.4058 Steering Ball Joint ....................... Recd. 24.5.34.
Detail drawings completed and issued ........ 12.6.34.

N.Sch.4059 Front Half Casing - All Helical Gearbox .... Recd. 28.5.34.
Detail drawings completed and issued ........ 23.6.34.
  
  


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