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Old 11-22-2004, 08:41 PM   #1
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Angle of Attack Question

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I've just upgraded the landing geat on my Kadet. It is an older Kadet MKII. The reason why I upgraded is because the wire landing gear was quite bent out of shape, and also it sagged - making the plane sit sloped towards the back (which was not good). Now, the plane sits sloped toward the front - quite a bit. I realize the airplane should sit fairly close to level the question is - being that my Kadet slopes quite a bit towards the front of the airplane, will this be a concern?
Colin Jensen
Regina Windy Flyers
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Old 11-22-2004, 08:55 PM   #2
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Hey Colin,

I am no expert, but sounds to me like you will have problems with it nosing over on you. Is there not a way to bend the gear to make it basically level? If you post a picture of what you have done, I am sure that many will have advice for you. After all the flying season is over for most, and all we have left is idle banter and free advice....

Joe Di Profio Jr

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Old 11-22-2004, 09:03 PM   #3
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Because the wing is now at a negative pitch it will become more difficult to take-off. You'll need more airspeed or airflow over the horizontal stab to rotate. Get a incidence meter and adjust so the wing is at 0 degrees.

Mike Sebastien
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Old 11-22-2004, 09:03 PM   #4
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You will just have to raise the nose a little bit during the takeoff run to get the Angle of Incidence sufficient to produce lift.

It should really stick to the ground once you drop the nose during landing. Can you not adjust the nose gear so it sits more level? If not try using a bigger nosewheel, that will help.

Again pictures of what you are trying to describe would be helpfull.
Jim Daly
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Old 11-22-2004, 09:33 PM   #5
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It probably wont matter that much, as long as your prop has mentioned above you will have to positively rotate it for take off, but it will still fly.....

The sooner you fall behind, the more time you will have to catch up.
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Old 11-22-2004, 11:41 PM   #6
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On a Kadet the 0 lift AOA is going to be negative so as long as the wing is basically level it should generate a fair bit of lift once it gets up to speed....

Having the ability to rotate the nose upward or having a positive AOA on the ground is really only useful for symmetrical wing models.
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Old 11-23-2004, 04:02 AM   #7
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I found this summer with my high wing and trike gear that when the plane sloped down that it would nose over to the right after a few feet of takeoff roll no matter what I tried. When I adjusted the nose gear so that the plane sloped slightly upwards then the problem went away.


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Old 11-23-2004, 10:32 AM   #8
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We have converted most of our Kadets to tail draggers, it solves a lot of problems, with some of the new ARF kits I think that nose gear is made of coat hanger wire, it was almost impossible to take off or land without it tucking under, the conversion is easy Mike
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