RCU Forums - View Single Post - 4*40 Ailerons Trim
View Single Post
Old 09-07-2006 | 10:51 AM
  #10  
rmh's Avatar
rmh
Senior Member
 
Joined: Dec 2001
Posts: 12,630
Likes: 0
Received 4 Likes on 4 Posts
From: , UT
Default RE: 4*40 Ailerons Trim

Actual use -on these planes - -setting the ailerons up a bit really does not hurt lift - the AOA for enough lift is very low

However - preventing th drag on down moving aileron is a noticaeable improvement - so - having done a lot of this crap - I found that simply rigging the aeilerons up a bit - for a gentle sport/aerobat with a 2412 airfoils ( oranything like that) really makes the wing act more like a fully sym section - the plane is easier to fly
for that matter- just plain ol sawing the wings off one bay on each side really improves the responses on that model - been there dun it for a friend- unless someone has added a lot of weight to the 4*, it still has plenty of nice slow flying character.
The full span ones - in a dive- can and will flutter the ailerons so badly that all aileron response ceases, till the model slows - - Fixed that for a guy one day a few years back- he thought the aileron servo was crapping out
basically all of the designs with long flexible ailerons suffered from this and the cure is just to fly more slowly -- and the up trim makes it ll a bit nicer.
It is really a nice gentle sport model when properly trimmed up and flown at a moderate pace.

.