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Thread: RAF / RN Chinagraph Pencils (Cold War era) for Kneeboards
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Old 27th Sep 2018, 08:02
  #101 (permalink)  
Q-SKI
 
Join Date: Aug 2005
Location: west midlands
Age: 65
Posts: 80
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Remember the method well, it was still more reliable than the infernal rotor tune box that followed! Any one remember BIM’s as well?
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