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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 typed and handwritten physics equations relating to motor torque, flux, and conductors.

Identifier  ExFiles\Box 61b\3\  scan0162
Date  25th February 1924 guessed
  
-2-
Contd.

= 300 { 1/2(.0000129) NT/r + 1/8 (.0000129)^2 N^2 T^2 / r^2 }
- .001935 NT/r { 1 + .0000032 NT/r }

Static motor torque T, - 1.294 T/r

Flux per pole = Ø
Number of conductors

= T₁ b x 10^8 / 1.41 P Ø C

= 1.294 T/r x 2 x 10^8(1 - .0000032 NT/r) / 1.41 x 4 x Ø X .001935 NT/r

= 1.294 x 2 x 10^11 / 1.41 x 4 x 1.935 { 1 - .0000032 NT/r } / Ø N

Z = 2.37 x 10^10 / Ø N { 1 - .0000032 NT/r }

{ 1 - .0000032 nT }

[Watermark: BOND]
  
  


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