MJKTuck(at)cs.com Guest
 
 
 
 
 
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				 Posted: Thu Feb 01, 2007 7:50 pm    Post subject: Dodgy Tacho? | 
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				Hi Folks,
  
  I have noticed on some flights (but not all) that I can be happily flying along at 5,000 rpm when the UMA analogue tacho pointer catches my eye as it drops to maybe 3,000 rpm., hovers for a bit, moves around a bit, then resumes back where it should be. Of course the engine carries on working just fine while all this is going on. I was planning on installing a UMA LED digital tacho thinking it maybe the instrument. It could I suppose be the sensor at the engine end.
  
  Any thoughts on what it might be - and anyone had any experience with the UMA LED 2 1/4 in. digital tacho? Any other recommendations out there - needs to be 2 1/4 inch dia. instrument though.
  
  Regards,
  Martin Tuck
  N152MT
  Wichita, Kansas  [quote][b]
 
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