G2 will not allow change to control surface
 

I'm having some problems making plane mods, and wondering if anyone has the answer or has tried this ?

I have the 4*120 that was provided by one our our good friends here. I'm trying to modify it to include flaps but no matter what I try I cannot get the wing configuration to change. Initially I wanted to make the ailerons into flaperons, just as the 4* is designed, but cannot find a way to make this happen either.
However, I was able to change the engine and engine sound no problem.

Steps I followed were 1) make copy of plane from edit 2) Go to Main Wing pulldown in control surfaces section, shorten main wing length 3) click on has flaps and make dist to tip to be length from tip of aileron plus an inch. Do a save. G2 goes to reset the plane but it is exactly the same as before, no changes ! Anyone know what I'm missing or how to do this properly ?

G2 will not allow change to control surface
 

I'm at work (lunch right now), so I don't have G2 in front of me. I don't remember the settings for adding flaps out of the top of my head.

However, turning the ailerons into flaperons is not very complicated, if you just know how to do it. In all fairness, it took me awhile to figure it out though.

In the airplane editor you can assign servos/channels (I don't remember what the terminology is in G2, and cannot check right now) to the control surfaces.

To have flaperons you modify the airplane to have separate servos for each aileron. There is a tab in the airplane editor where you can do this. Then you go to the radio settings in the editor and modify those. Select the aileron channel and make that control both aileron servos as ailerons (you add an extra tick on the line for your new aileron servo). Then select the flaps channel to control both aileron servos as flaps (make sure only your two aileron servos are ticked). Also check the servo directions. You can reverse the servo directions independently for the aileron servos, if you need.

This is just from the top of my head, so I could have missed something. Please get back to me, if something seems wrong or confusing. I will have a look in G2, when I get home from work.

Krister

G2 will not allow change to control surface
 

Krister,
Thanks for the tip, and I think I closer but not there yet. I was able to set up the 2 servos one for each side and I was able to get flaps working properly, but not able to get flaperons. I got stuck on the screen where it requires control surface dimensions, as it will not allow you to overlap the flaps with the ailerons. How did you overcome this ?
My workaround was to shorten the ailerons length so that I could have small 5 inch flaps. These work well, but I think that by shortening the aileron I changed the flying characteristics just a little.

G2 will not allow change to control surface
 

For flaps, as far as I know you do have to shorten the ailerons unless there is room for the flaps already. I do not think ailerons and flaps can overlap.

So what you are doing sounds correct to me. You are right, it might change the flying characteristics a bit. If you want more aileron authority after shortening them, maybe you can enlarge the aileron control throw somewhat?

Just to avoid any confusion - the above is only applicable to flaps. For flaperons , you should not have to change any control surface dimensions at all.


Krister

G2 will not allow change to control surface
 

I just called Great Planes, and it is not possible to have Flaperons, only Flaps. They are working on flaperons as an upgrade to a future release. So for now we'll just have to stay with flaps only. Thanks Mike

G2 will not allow change to control surface
 

Sorry, but I do not know what Great Planes are talking about in that case. I am certainly using flaperons in G2 already, as well as flaps. I have for instance used flaperons in a Sig Somethin' Extra (based on the Extra 300) as well as a Sig Kavalier (based on the Easysport).

I have got G2 in front of me now.

My Somethin' Extra is set up as follows:

In the airplane editor:
under Servos:
Left aileron: Channel 1 and reversed
Right aileron: Channel 5 and not reversed

In the radio settings in the editor:
Channel 1 (Left Aileron) - Servo is controlled by:
Input 1: From -100% to 100% When: always
Input 6: From 0 to 100% When: always

Channel 5 (Right Aileron) - Servo is controlled by:
Input 1: From -100% to 100% When: always
Input 6: From 0 to -100% When: always

Input 1 is the aileron axis on the stick as usual, and input 6 is the knob. Works fine.

Krister

G2 will not allow change to control surface
 

Krister,

Yes, you are the master !!

I tried as you suggested and it worked perfectly. Obviously the GP Tech person I spoke with (long distance call at that) was unaware of how this could be done. It was not until I read your note did I fully understand the distinction between the channel, servo and input signal.

Thanks for your very helpful information.

G2 will not allow change to control surface
 

Well, it was a bit easier to explain when I could actually have a look in G2 too, instead of just trying to remember... :)

I am glad you got it working!

Krister