Rolls-Royce Archives
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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).
Page of engineering calculations for flux and conductors.

Identifier  ExFiles\Box 64\1\  scan0124
Date  16th May 1923 guessed
  
-2- Contd

= 5/29 x π x 2.850 = 1.54"

= 39 mm.

Length = 2.50" = 63.5 mm.

This gives a useful flux per pole of

6500 x 6.35 x 3.9

= 161,000

Number of conductors

= (Tb x 10^8) / (1.41 P Ø C)

= (36.4 x 2 x 10^8) / (1.41 x 4 x 161000 x 120)

= 66.8
  
  


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