Cardinal profile tip weight?

[Scott Richlen]

What is the weight of your Cardinal profile wing-tip weight?

[Tim Wescott]

If I had a Cardinal, it would be adjustable, and adjusted to whatever that particular plane needed with the particular lines I was flying it with.

Start with about 1 ounce -- that should be way too much, which is a good start.  Then adjust as needed until Stunt Nirvana is reached.

[Brett Buck]

If I had a Cardinal, it would be adjustable, and adjusted to whatever that particular plane needed with the particular lines I was flying it with.

Start with about 1 ounce -- that should be way too much, which is a good start.  Then adjust as needed until Stunt Nirvana is reached.

   That will not be way too much. The airplane has equal-span wings (or at least, that's what it's supposed to have, unless someone changed it). 2 to start, and that's low if if wasn't for the engine and tank out there, it might need more.

    Brett

[Dave_Trible]

Jared Hayes has one he has struggled with.  I don't know what the airplane called for but he didn't make it adjustable and it was WAY TOO MUCH.  I suggested he start trimming away the inboard flap.  It now flies pretty well...with about half the inboard flap gone.  Looks strange but flies pretty well now.  I'm a little suspect of the airfoil at the tips though I haven't really spent much time to look into it.

Dave

[Mike Ferguson]

Jared Hayes has one he has struggled with.  I don't know what the airplane called for but he didn't make it adjustable and it was WAY TOO MUCH.  I suggested he start trimming away the inboard flap.  It now flies pretty well...with about half the inboard flap gone.  Looks strange but flies pretty well now.  I'm a little suspect of the airfoil at the tips though I haven't really spent much time to look into it.

Dave

Trim 5/8" to 3/4" off the back of both flaps, set control ratio to 2:3. It will fly really, really nice once that's done.

[Brett Buck]

Jared Hayes has one he has struggled with.  I don't know what the airplane called for but he didn't make it adjustable and it was WAY TOO MUCH.  I suggested he start trimming away the inboard flap.  It now flies pretty well...with about half the inboard flap gone.  Looks strange but flies pretty well now.  I'm a little suspect of the airfoil at the tips though I haven't really spent much time to look into it.

Dave

   That can happen if you build in tip weight. In that case I would dig it out, rather than trim the flaps that much differently.

      Brett

[Ken Culbertson]

Trim 5/8" to 3/4" off the back of both flaps, set control ratio to 2:3. It will fly really, really nice once that's done.

I second that motion.

[Brett Buck]

I second that motion.

  Thank Ted Fancher for that one, that was invented out in the parking lot at Mission College in Santa Clara, CA, and done on-site to Paul Ferrell's Profile Cardinal. He won the Senior National Championship about two weeks later.

    Brett

[Jared Hays]

Mine is adjustable however at one time I did have way to much in it.  I went and grabbed mine and pulled the weight box to see what I have in it currently,  its 1 oz.  I had a big hinging issue with the plane before.  Where when you gave down control the outside wing would roll upward and vise versa on up control.  The more tip weight I added the worse it got.  So I started pulling tip weight out and it got better.  But still wasn't good by any means.  After talking to Dave once at a contest.  I decided to start to trim down the inboard flap.  I have ended up taking off a full inch width of the inboard flap,  and now it flies pretty well.  It just gets a lot of "looks" at the flying fields haha... But hey I won 1st in North Carolina with it 2 years ago in a class of nearly 20 competitors in its current configuration, so for an ARF its good enough for me.