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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).
Design proposal and discussion for a longer bonnet for the P2 model.

Identifier  ExFiles\Box 12\7\  07-page198
Date  12th December 1931
  
Copy. X7260.

TO BY.{R.W. Bailey - Chief Engineer} FROM EV.{Ivan Evernden - coachwork}

EV{Ivan Evernden - coachwork}1/12.12.31. X7260.

COPY TO SG.{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair} CX.{Major Len W. Cox - Advertising Manager} LONGER BONNET. P2.

We send herewith N.sch.3392., shewing a bonnet for P2. which is 6.000 ins. longer than standard. This is the maximum amount we belive to be possible without undue widening in the plan view and so flattening the bonnet top, or else by not so doing spoiling the scuttle of the "C" Steering Pullman.

If so desired, on "E" & "F" Columns, one could produce a still more enhanced appearance by the use of a bonnet 9.000 ins. longer than standard. It is a question whether we can tolerate the increase cost of two standards. The longer bonnet would be set out merely by extending that on N.sch.3392.

The design as drawn is for the present type of hinge but it is equally applicable to the rivetless variety.

We suggest that Sales consider the suggestion of bringing through a stock body with such a bonnet. Derby have a solution for steadying the side wheel carrier on P2. without the use of the external stay.

Will Derby please send a print of this scheme to CX.{Major Len W. Cox - Advertising Manager}

EV.{Ivan Evernden - coachwork}
  
  


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