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Old 22nd March 2007 | 19:24
  #34 (permalink)  
Comanche250
 
Joined: Dec 2006
Posts: 66
Likes: 0
From: UK
Right Chuck I cant let this lie either lol...approach configuration, gear down, flaps 40 degrees, 90 kts, prop levers set at cruise RPM which is 2300 and a MAP of between 15-17". Long final, short final - makes no difference. If you increase the RPM levers you will only get a small increase in RPM as the MAP is low and the props are only spinning at about 1500-1600 RPM. So where does the extra wear and tear come into it if you are only getting a small rise in RPM. Yes granted if you are at cruise power which is 24" 2300 in the a/c I fly and you then increase the RPM you will get a rise of 275 RPM.

So final is only going to last about 2-3 mins with the props fully fine which is a tiny fraction of the total time spent at a lower RPM so where is the problem? Anyway, we are right, I shall continue to fly my a/c as I always have because I have never had ANY problems doing it that way!

Nuff said

C250
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