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  #18  
Old 04-01-2011, 12:48 PM
Biggs Biggs is offline
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Join Date: Feb 2008
Location: United States
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all my references are from the book Spitfire: The History by Eric Morgan and Edward Shacklady.

All figures are the actual recordings made during testing... most seem to be from either facilities, Martlesham Heath or Boscombe Down.