Dennis.Kirby(at)kirtland.
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 Posted: Thu Sep 28, 2006 11:33 am Post subject: Flutter, or Carb Ice? |
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(I changed the Subject line ...)
<< You didn't mention feeling the flutter on the stick. Before I
installed counter balances on my MK3 I encountered flutter at about 85
mph and it was very evident in the stick. A vibration in the airframe
can come from a miss in the engine. My first and only experience with
carb ice on the 912 caused a couple of short bursts of vibration due to
the engine missing as the ice broke loose. This happened twice in about
a 15 minute period. Steven Green >>
Hi, Steven -
Thanks for your input - what I encountered sounds very much like the
carb ice incident you describe.
Reason: I don't recall feeling any unusual vibration in the stick.
And from your description, it sounds like I could not have MISSED it, if
it was the aileron fluttering.
On that day, I was flying within 500 feet of cloud bottoms, temps around
60 degrees - classic conditions for carb ice (in hindsight). I was also
flying for extended periods at a constant power setting. (I was
conducting fuel burn trials - was trying to keep the RPMs constant.)
I wonder if changing power settings occasionally might help here, when
flying in high-carb-ice-likelihood conditions?
Dennis Kirby
Mk-III, 912ul, 58 hrs TT
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