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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).
Listing blueprints for Wraith III chassis inlet pipes and requesting the production of one set.

Identifier  ExFiles\Box 7\4\  X 608 Carburetter-page50
Date  14th December 1938
  
608
HPC
c. Rm.{William Robotham - Chief Engineer}
c. Rm{William Robotham - Chief Engineer}/OTS.
BY/A1d.3/C.14.12.38.

WRAITH III CHASSIS.

INLET PIPES - SECTION 5070.

Please receive herewith two blueprints of each of the following :-

Ex.S.1302 Induction Pipe Centre Body. 1 off.
Ex.S.1303 Base for Carburetter. 1 off.
Ex.S.1304 Plate for Carburetter Base. 1 off.
Ex.S.1305 Assembly of Centre Box. 1 off.
x Ex.S.1306 Upper Partition for Centre Body. 1 off.
x Ex.S.1307 Lower " " ". 1 off.
y Ex.S.1308 Flow Pipe. 2 off.

The parts marked 'x' are alternative to that marked 'y'.

The above is as requested by Rm{William Robotham - Chief Engineer}/OTS.6/JH. 13.12.38. to provide various mixture flows from the throttle bores to the induction pipe.

Kindly produce 1 set, noting that Ex.S.1302/3 are to be made from existing parts in the possession of Rm{William Robotham - Chief Engineer}/OTS.

[Signature: Ald{F. Allwood - Experimental Design}]
BY/A1d.
  
  


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