Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
The increased size and weight balance of the Enlarged Face Shield Type BD Gun.

Identifier  ExFiles\Box 175\3\  img306
Date  5th February 1941
  
c. to Rm.{William Robotham - Chief Engineer}

Ev.{Ivan Evernden - coachwork}1/JH.5.2.41.

3

re Enlarged Face Shield Type BD.{Mr Berend} Gun.

With reference to the reply from Lt. R.F. Young concerning the increase in size of the face shield for the above gun and of which reply we have received a copy, we do not understand why a figure of 1/2 sq.ft. increase in area is mentioned if the out of balance after filling the armrest with lead is equivalent to 16 lbs. weight at the armrest, but as already stated(Ev.{Ivan Evernden - coachwork}3/JH.31.1.41) we estimate this out of balance to represent 23.8 lbs. weight at the face shield or approximately an increase in area of 170 sq.in. i.e. 1.18 sq/ft.

Ev.{Ivan Evernden - coachwork}
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙