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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).
Specification revision memo for Engine Unit B.60 No.2, detailing changes to components.

Identifier  ExFiles\Box 124\2\  scan0217
Date  7th August 1940
  
1044

To Rm.{William Robotham - Chief Engineer} from HPS{Horace Percy Smith - Experimental Factory Mgr}/CP.
c. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}
c. Rm{William Robotham - Chief Engineer}/HH.
c. Rm{William Robotham - Chief Engineer}/Hm.{Capt. W. Hallam - Head Repairs}

HPS{Horace Percy Smith - Experimental Factory Mgr}/CP.1/SW.7.8.40.

Engine Unit B.60 No.2.

Specification of above unit is revised as follows :-

Previous Specification.
Cylinders LOP.EB.4007.
EB.3844 Cyl. Head.
Capacity 124 cc's C/R.6:4:1
Complete with Valves and Springs etc.
Removed.

-----------------

PD.430 Rocker Cover
Oil Filler.

EB.5051 Rocker Cover
EB.5064 Washer
Ex.35866 Filler Cap.

Removed.

-----------------

EB.5020 Breather conn.
EB.5021 Breather pipe.

Removed.

-----------------

Revised Specification.

EB.3844 Cyl. Head.
Capacity 112.5 cc's C/R.6:9:1
Complete with Valves and Springs etc.
Ex. B.60 No.3.
Fitted.
fm

-----------------

EB.3874 Rocker Cover
ex B.60 No.3

Fitted.

-----------------

EB.3067 Oil Filler with breather pipe.
ex B.60 No.3.

Fitted.

-----------------

HPS{Horace Percy Smith - Experimental Factory Mgr}/CP.
  
  


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