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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).
Visit to Aspin regarding engine conversion, design issues with cylinder stud positioning, and a new layout at Blounts Mill.

Identifier  ExFiles\Box 134\1\  scan0236
Date  15th May 1940
  
Unr. from Rm.{William Robotham - Chief Engineer}
11D9
Rm.{William Robotham - Chief Engineer}12/ML.15.5.40.

The visit to Aspin has now
been provisionally arranged for Wednesday of next week.

He has received the overhead
camshaft engine and has got out provisional schemes for
converting this to 2-stroke and 4-stroke with the Aspin
valve.

I suggest that you have some
drawings of the top of the overhead camshaft block and
the stud centres to which we can refer when we go over
there.

It appears that the only trouble
that Aspin has run into is the positioning of the cylinder
stud.

Incidentally, the aviation people
have made a lay-out at Blounts Mill which you should see
between now and Wednesday.

Rm.{William Robotham - Chief Engineer}
  
  


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