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HomeAircraftHelicopterFlybarless Rotor Head SystemsSkookum › Can anyone help me out on my skookum 720 tail problem???
11-14-2011 11:42 PM  6 years agoPost 1
donny_boyette

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Robertsdale, Al, Usa

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Have the sk720, using a traditional reciever, the problem i'm having is that the gyro will hold in one direction, but only holds for a couple of seconds in the opposite direction. Also when you move the collective/ trottle stick up and down, it twitches the tail a bit, which causes control problems in flight. I've worked with the gains a bit, but I haven't solved the problem yet---any ideas???

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11-15-2011 12:45 PM  6 years agoPost 2
jsenicka

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Eagle River, WI

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what do your flight gains show when you plug in the PC?
sounds like you are in the default rate mode bank

Jim Senicka
Team Manager, GrandRC Flight Team

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11-15-2011 11:29 PM  6 years agoPost 3
donny_boyette

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Robertsdale, Al, Usa

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I have figured out part of it, the collective mix in the tail section( advanced settings) was on 25, when i put it to zero that stopped the movement of the tail when adding collective. I also took the main blades off and ran the heli, even though it doesnt stay in HH while still, it does apear to hold while running. So when i get a chance to try it out , we'll see if that solved the problem. something else, I'm also running a 4 blade head with a 2 blade tail so that may be some of my problem also.

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11-17-2011 06:20 AM  6 years agoPost 4
Skookum Robotics

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Vancouver, BC - Canada

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I don't think the collective to tail mix is the problem. With a 4-blade head and standard tail blades, it's easy for the tail to get overloaded, especially at lower RPM. I would try slightly larger tail blades.

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12-27-2011 10:44 PM  6 years agoPost 5
donny_boyette

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Robertsdale, Al, Usa

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yea, that seems to be the problem, the 4 blade heads overwhelms the 2 blade tail---thanks

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HomeAircraftHelicopterFlybarless Rotor Head SystemsSkookum › Can anyone help me out on my skookum 720 tail problem???
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