Ground-looping on pavement/concrete - Page 3 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 05-01-2012, 07:14 AM   #21
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Re: Ground-looping on pavement/concrete

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I flew off of pavement for five years. Full up elevator and full throttle usually results in a premature takeoff and snap roll back to the hard top, not a pretty sight. The trick is to get enough airspeed so the rudder becomes effective. Slow application of throttle is the key. Toe out is a must. A larger than usual tail wheel helps.

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Old 05-02-2012, 10:41 PM   #22
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Re: Ground-looping on pavement/concrete

Strait ahead or a little toe in. Toe out causes the gear to wander and that turns into a ground loop. Also a little toe out on a hard landing causes the wheels to become even more toe out in a hurry. IMO
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Old 05-03-2012, 09:02 AM   #23
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Re: Ground-looping on pavement/concrete

As mentioned on my Harvard build thread the first flight session was nearly disastrous. This was my first retract set installed and to aid the rather unusual orientation I opted for 0 degree toe in. Bad idea.

The plane looked like a drunken sailor and only full up elevator gave even some modicum of directional control. That recipe was exactly as kip51305 described, with the sudden, high alpha takeoff causing it to snap over on one wing, then the next. Barely got it back.

It sat for the winter while other projects came to the fore and it was only last Sunday I was able to try out the new arrangement. Slight toe in and a spring tailwheel to absorb any bounce. You can see from the vid takeoffs now are a non-issue. What cannot be seen is the slight crosswind that normally would have added to the difficulty. BORING!

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Old 05-03-2012, 10:31 AM   #24
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Re: Ground-looping on pavement/concrete

hand lauch em.. prob solved
happy flying

Last edited by juice90; 05-03-2012 at 11:53 AM.
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