Comments on: Super Cub Aileron Upgrade (part 3)

By: Steve

Steve — Mon, 20 Oct 2008 15:02:37 +0000

A friend and I just bought a couple Cubs at the Hobby Expo in Chicago this past weekend. I haven’t flown mine yet but we will at lunch today! Seems like the best trainer from what we hear so far and the mod to the ailerons will extend the fun (need for another plane) for a year of so

Thanks for the info on the upgrade. I’ll be doing this after a battery upgrade to extend flying time!

By: Bill

Bill — Wed, 13 Aug 2008 21:38:41 +0000

thanks for putting the upgrade on you tube, I am going to try it before I buy something new.

By: Dave

Dave — Sun, 13 Jul 2008 04:59:31 +0000

Oh yes, 25A will be much more than adequate.

By: Stephen

Stephen — Sat, 12 Jul 2008 21:52:20 +0000

Awesome, I’ll do that, and what about the 25A ESC?

By: Dave

Dave — Sat, 12 Jul 2008 21:22:25 +0000

With dihedral, the plane wants to naturally return to neutral when you give it aileron input in either direction (left or right). This has 2 adverse effects:

1. You have to continually hold the aileron stick slightly to the left/right during the turn.

2. It adds drag because the outside wing tip is presenting a bigger surface to the wind.

The plane will fly smoother and more like an airliner with the dihedral gone (the “real” cub has no dihedral). The dihedral is only there so the rudder-only control will work.

–Dave

By: Stephen

Stephen — Sat, 12 Jul 2008 21:10:36 +0000

Hi Dave, just wondering, I am about to do the alieron mod to my cub, and why lose the dihedral? also, would a 25A ESC sufice for an 8 cell 1500 mAh pack? (everything else stock except for my radio system and servos).

Thanks

By: Dave

Dave — Thu, 10 Jul 2008 11:31:25 +0000

If I had it to do all over again, I would do everything the same but I would cut the ailerons about 50% deeper into the wing for more “bite”. You may also want to flatten the wing to remove the dihedral by stacking a bunch of books on it over night and then running packing tape along the bottom (from left wing tip to right wing tip) to make sure it stays flat. The tape will reinforce the wing quite a bit too.

Good luck!

–Dave

By: Eric

Eric — Thu, 10 Jul 2008 04:52:22 +0000

Dave,

I’m going to add ailerons to a Super Cub. If you had to do I again are there any changes to your mod that you think I should make?

I just bought a DX7 and have the extra servos… Looks like a great mod. Please let me know if you have any recommendations.

Thanks,

Eric

By: Tom

Tom — Thu, 26 Jun 2008 05:57:47 +0000

Thanks thats a great help

By: Dave

Dave — Wed, 25 Jun 2008 17:57:49 +0000

The plane will fly much smoother, and won’t loose lots of speed every time you turn like the rudder does.

Here’s what you’ll have to change: With rudder it was impossible to actually roll upside down. With ailerons, you can! So you’ll have to be careful not to do that on accident and get upside down and confused.

You can still use the rudder on the left stick if you like, by the way.