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Old 25th August 2006 | 17:20
  #33 (permalink)  
FE Hoppy
 
Joined: Sep 1998
Posts: 1,615
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From: wherever
Why would any -500 charts use -22B power settings
It's the old fasioned way of De-Rating the engine so lower VMC speeds can be used. These days you do the same by selecting TO2 or TO3. Clever work around in the early eighties if you ask me.
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