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Old 6th Sep 2010, 16:05
  #232 (permalink)  
Join Date: Nov 2007
Location: Devon
Posts: 39
Thankyou guys for your lucid explanations. Things are now a great deal clearer, and I now understand how you can be doing 550 knots at Mach 2, which previously seemed impossible!

Now, more about that beautiful machine, please...
Shanewhite is offline