Most of the planes I make experiences an issue with their flaps not functioning correctly.
The intended effect for flaps is to offering a little upward pitch to compensate for. Most of them on my craft generally ended up pitching the plane downward.
Drag is NOT the primary concern.
Wing type was kept with Symmetric.
I messed around, and I figured it has something to do with the wing’s (not the aileron) position in relation to the CoL and CoM.
Planes before I switched to multi beam wing tended to have favourable flaps performances. This was due to the centre of a single beam wing being largely between the CoL and CoM.
Newer planes with double beam, then individual wing panels as aerofoil and flaps suffered with incorrect flap behaviour. As the centre of the wing part responsible for flap action was far behind the CoL or CoM.
Looks like I’ve got a lot of performance adjustments ahead of me.
Nothing I tried so far have remedied the problem apart from readjusting the CoM and CoL quite dramatically.
I tried a few more experiments, it seems flap behaviour doesn’t really matter on whether there’s another wing in front. Just it’s location on the plane.
There is some effect when the top of the flap is covered like on most planes
@F104Deathtrap
@IshiMoss Hmmm, it's been over a year since I experimented with this. Last time, I used hidden canards to simulate flaps, I think.
the thing is aerodynamics in SP will not generate lift for flaps regardless of its pitching effect, I want a bit of upward pitch to pseudo that lift generation, especially when landing. @F104Deathtrap
but no lift @F104Deathtrap
In real life, deploying the flaps cause 3 things to happen. First, the nose tips down and you have to pull up to counteract it. Second, you get a lot more lift. Third, you get considerably more drag and often have to increase the throttle a bit to maintain speed.
TLDR Trailing edge flaps usually cause the nose to pitch down. It's perfectly normal.
epico@ZeroWithSlashedO
To put it simply if a separate wing is in front of that wing with the elevon, and that wing has a higher lift, it's going to pitch down.