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plane rolls right with a hard pull

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Old 08-31-2003 | 10:15 PM
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From: perkasie, PA
Default plane rolls right with a hard pull

Everytime I fly my cap 232, and i want to go vertical from level flight. (eg- pull hard back on the stick for a snap to vertical) the plane rolls to the right. And if I hold the stck back, the plane goes vertical and will do a roll 360 degrrees to the right. I made sure i wasnt bumping the stick when pull back so that cant be it. Some one suggested engine torque, but wouldnt that make the plane roll left, not right??? The only other thing i can think of is maybe the elevater(split) is moving up farther on the right side than the left, then the elevator is acting dort of like a wing in a banking turn. These are all just suggestions but I have not reall concrete answer as to why this might happen. Any input would be helpful cause i want to start tring some pattern flying.
Old 09-01-2003 | 02:58 PM
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Default plane rolls right with a hard pull

I am no expert but some things that I might consider would be:

1. model is not laterally ballanced. maybe the right side of the airplane is heavier.

2. wings might be warped.

3. the model is snapping. I have had models snap right or left sometimes when I wasnt going fast enough and gave them too much elevator. Try giving the model a little more speed before pulling back on the stick, or pull back more softly.

4. rudder might not be perfectly straight.

5. you could be right about the elevators not moving up and down exactly striaght with eachother.

Again, these are just some of my guesses. These are the things that I would personally look at first.

Rob
Old 09-08-2003 | 01:27 PM
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From: Fort Worth, TX
Default RE: plane rolls right with a hard pull

It sounds like to me that the elevators aren't pulling the same amount on both sides. Check the throw at full stick, and see if one is higher than the other. I would think that the right elevator is higher than the left. This is the reason your are seeing the plane pull to the right.

Rick
Old 09-08-2003 | 01:48 PM
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Default RE: plane rolls right with a hard pull

I agree with the two above....either your lateral balance is out of whack and or your elevators are moving at different dimensions, or speed.
Could be a combo of both, too.
Old 09-08-2003 | 10:37 PM
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Default RE: plane rolls right with a hard pull

your elevators may be moving the same amount on the ground , but maybe the elevator joiner is blowing back on the non-driven side in the air.

give it a wiggle and see if there is a lot of bend/slop in the joiner
Old 09-09-2003 | 05:30 PM
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Default RE: plane rolls right with a hard pull

Check the covering on your right wing. On my Rambler 45 I could do a gentle pull-up with no problem but anything more than that would cause a violent roll to the right. Turned out that the covering was loose near the tip and was ballooning up on a hard pullup, causing the right wing to stall. "Strange but True!"
Old 09-10-2003 | 10:57 AM
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Default RE: plane rolls right with a hard pull

I'll bet money that your elevator throw is too high and you are stalling that wing. You didn't say what size Cap you have so I'll give you figures in degrees; 7 to 10.
It will still roll out with this throw if you yank hard at full speed.

This is not just a Cap thing, it's true of all scale aerobats like Extra's, Edge's, ect. If you put the wing at too high angle of attack it will stall and do something that looks like a snap.

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