RC India

Hi,
what is the difference in performance in high wing and low wing planes. i am asking this question because i want to experiment something in my e-starter plane. origianally e-starter is a high winger plane (if i am not wrong), now i want to convert the same to a low winger one. what will be the performance or will it fly in the new mode?
sandeep

This reminds me of a similar instance when Dad was learning how to fly.  He and a friend of his built a high winger and were flying it.. While building they had the same idea and left an option to fit the wing underneath.  After they got bored of the high winger, then removed the wing from top, sealed the opening and opened up the bottom slot and shoved in the wing under the fuse!! It flew beautifully!

A low winger plane tends to be much more aerobatic than a high winger.  It would be less stable in air too.

- Chan

thanks for the reply chan, is the gliding capability of a plane depends on wing placement (low or high) or it is the design and CG that makes plane glide capable?

I have done that on a Great planes PT 60 and the conversion worked very well.
The  DIFF is in the case of a highwinger due to the dihidral it has a self correcting tendency , but in case of a low wing it will do exactly the command you you give it and will loose its self correcting property considerebly.
rgds
sai

Ok, but when i use the e-starter wing in a low winger mode, which has a dihedral , will the self correcting tendency work or not?

It will work to a very very limited extent not like when its in highwing mode.
rgds\sai

Guys

The reason that a low winger is unstable is because the CG is above the wing, thereby making the di-hedrals ineffective. When the wings are above the cg as in a hi-winger, the fuse and other parts of the plane are hanging from the wing so to say, thereby making the di-hedrals effective for self righting of the lane.... almost like a person descending in a parachute and being held aloft by the canopy of the parachute working against air- resistance as they descend

Saju

Since someone asked... 

A high wing plane has the wing mounted on top of the fuselage (so the wing looks like it is sitting on top of the fuselage).

And a low wing plane has the wing mounted towards the bottom of the fuselage (so it seems that the fuselage is sitting on the wing).

http://en.wikipedia.org/wiki/Category:High_wing_aircraft

http://en.wikipedia.org/wiki/Category:Low_wing_aircraft

And there are bi-planes that have both high and low wings at the same time.

Agreed with Saju, A high winger is recommended for newbies because the CG below the wings tends to make the plane fly level. Think of it like a pendulum, the ball will always try and move perpendicular to the ground. So this means the moment one leaves the turn input (via rudder or aileron), the plane would tend to become level, then one can use the elevator control to take it up.

Well.... that is what we were taught wayback...

Pankaj

High wingers are Meditating Ones, while the Low winger ones are Drunken ;-) on Zero throttle!