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Old 10-23-2006 | 11:23 PM
  #126  
Ehab
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From: Mother Earth, the Sunny side!
Default RE: Skymaster F-4E phantom

ORIGINAL: WhoDaMan

Hi Gordon:
Is it not true that a aileron servo will un-load were as a flap serv will not ,,,, thus the need for more torque on the flap servo. I also remember Johnny Hernandez losing his F-4 on the flap servo nylon craking and giving way thus the role on final and lost of his plane.

Dave




Rolling an aircraft requires a lot less twisting moments than doing a loop for example. You have two aileron servos working together to twist a plane in direction of flight. Flaps have almost an opposite function (almost) they are trying to lift a jet against flight path and they are bigger in surface area. The same for elevetor servos. With the price of these jets (6-9k dollars) it is almost silly to save a few bucks on aileron servos. I would use 8611/5955 everywhere on flying surfaces if at all possible. I am sure mathematically that would be an overkill, but better be safe than sorry in this particular case. The hitec 6985 at $79 is also a very good choice for any aileron...