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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).
Tables showing measured leaf thickness and lengths for Toledo Woodhead Springs for MYTH.

Identifier  ExFiles\Box 110\3\  scan0075
Date  24th April 1941
  
Rm{William Robotham - Chief Engineer}/GB.12/ST.24.4.41 - 2 -

TABLE SHOWING MEASURED LEAF THICKNESS
OF THE TOLEDO WOODHEAD SPRINGS FOR MYTH

Leaf No. Nominal size. Spring No1 Spring No2 Spring No3 Spring No4
--------------------------------------------------------------------------
1 .234" .235 .256 .256 .256
2 .231 .235 .236 .239 .240
3 " .242 .236 .235 .239
4 " .233 .239 .233 .232
5 " .233 .238 .231 .238
6 .208 .213 .213 .210 .211
7 " .213 .212 .212 .212
8 " .213 .212 .213 .211
9 " .213 .211 .211 .209
--------------------------------------------------------------------------
Leaf thickness varies from -.000 to +.011" on nominal.


TABLE SHOWING LENGTHS OF LEAVES
IN TOLEDO WOODHEAD SPRINGS FOR MYTH

Leaf No. Nominal size. Spring No1 Spring No2 Spring No3 Spring No4
--------------------------------------------------------------------------
1 44 44 44 44 44
2 41 41.25 41.25 41.25 41.3
3 35.875 36.1 36 36 36
4 30.79 31 31 31 31
5 25.71 26 26.1 26 26.1
6 20.63 21 21.1 21 21.1
7 16.03 16.5 16.5 16.5 16.5
8 11.43 11.9 12 12 11.85
9 7 7.35 7.45 7.5 7.5
--------------------------------------------------------------------------
Leaf lengths vary from +.125 to +.57".
This is very bad.
  
  


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