wing tip rolls (KE spins): help!!!
#4
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From: Clermont, FL
That is called a knife edge spin. I would give you some info but i can hardly do one, i need to perfect it.
At least you know what to ask if you don't get any responces.
At least you know what to ask if you don't get any responces.
#5
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From: CamborneCornwall, UNITED KINGDOM
i had my c50 doing this last week... climb, stall, hit the rudder to put you on edge, then full down and power. thats how i was getting it anyway. other times its by mistake
#6
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From: Wilmslow, UNITED KINGDOM
With the Flip this is an easy move. Best approaced inverted with height.(mode 2 I'm afraid) or approaching a knife edge. Just give it max up elevator and aileron, ie throw the stick into the top left or right corner with full power or keep blipping to full power. Then for fun throw in full rudder!!! With practice the plane can seem to stay in one spot. To recover neutral all controls. Watch it go mad with opposite aileron and rudder!! As always max throws.
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From: Flytown, UNITED KINGDOM
Yeh, I've got a Goldbergh Extra 300 that's supposed to KE spin great but I can't get mine into it even with instructions!! It flat spins great and sometimes it gets in the KE spin for about one rotation but I can't repeat it. So how...?
#8
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From: Wilmslow, UNITED KINGDOM
The GB Extra isn't really a 3D plane, but you could try increasing the elevator and aileron throws to as much as you feel safe with. Try a finer pitched prop down to at least a X4. But your basic problem is the model. Sorry.
#9
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From: Glenview,
IL
I've got a CG extreme 330 and it knife edge spins great.
I go vertical and ease back on the throttle. Right before it drops out I give it full throttle, full left rudder, full right aileron and full down. You’ve got to be careful because it can snap out of it and go into another violent maneuver.
I go vertical and ease back on the throttle. Right before it drops out I give it full throttle, full left rudder, full right aileron and full down. You’ve got to be careful because it can snap out of it and go into another violent maneuver.
#10
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Full down elevator and full left rudder from a knife edge stall at low throttle (WAAAYYYYY up high please!!!) then go to about half throttle. As the plane falls play with the amount of aileron you feed in. Too much will make the plane roll out of the knife edge. you cant just slam the aileron stick to one side or the other. you may have to do this several times before you fiqure out the sweet spot. I have three planes (u-can do, GB extreme 330, and a razzel) and all will knife edge spin but the secret was feeding the proper amount of aileron in while it was falling. the u can do is the most graceful with a very smooth rotation. The Extreme is the trickest to keep in the KE spin but it will do it. The razzel was the easeist and will wind up in a 2 revolution/sec spin that is just pure scary! ( it also falls toward the earth faster while doing the spin than the others)
take care
z123
take care
z123
#11

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The definitive KE spin:
Climb to a reasonable altitude. Enter an inverted spin first: mid throttle, full down, full right aileron, full right rudder. When the airplane is deep into the spin, simply transition the rudder from full right to full left leaving everything else untouched. This is very similar to an inverted flat spin, but instead of crossing the ailerons you cross the rudder from one side to another.
1/2 fun.
Climb to a reasonable altitude. Enter an inverted spin first: mid throttle, full down, full right aileron, full right rudder. When the airplane is deep into the spin, simply transition the rudder from full right to full left leaving everything else untouched. This is very similar to an inverted flat spin, but instead of crossing the ailerons you cross the rudder from one side to another.
1/2 fun.
#12

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Look at the tip spin thread. This seems to have been asked alot lately.
Do a knife edge up high, cut the throttle, keep feeding rudder to hold the knife edge, when it stalls and starts to fall give it full down and aileron the same way at same time. Should go right into it. Thats how mine does it.
Then as it falls reverse the rudder only to go into a inverted flat spin, then move the rudder back to enter the tip spin again...
Do a knife edge up high, cut the throttle, keep feeding rudder to hold the knife edge, when it stalls and starts to fall give it full down and aileron the same way at same time. Should go right into it. Thats how mine does it.
Then as it falls reverse the rudder only to go into a inverted flat spin, then move the rudder back to enter the tip spin again...
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From: Toledo,
OH
Here's my method, works every time (if the plane is capable). Climb vertical to a high altitude. Chop the throttle, and as it slows down, but before it stops, kick in right rudder then neutralize it, just to get the nose over to the right, sort of like the start of a hammerhead. Rather than finishing a hammerhead though, as soon as the nose is level with the horizon, give full power, full down elevator and full left aileron, hold it briefly to let the spin establish, then feed in full left rudder. You'll be spinning down at this point but not completely flat. Now start slowly taking the left aileron out of it, still holding full down, full power & full left rudder. You may not be able to eliminate the left aileron completely, but you'll see the spin go flat (and if you remember where the aileron input was, be able to gos triaght to it the next time). It should be a very flat KE spin at this point, and dropping straight down. When you get it right, they come down fast, so start high, and be prepared. Most will exit easily by nuetralizing the rudder and elevator while maintaining full power, then rolling left for upright or right for inverted flight. Tthe only real trick here is timing it right so the plane is going in the direction you want it to when it stops spinning. Good luck. It isn't hard once you do it a couple times.
#14
As we can see, every plane is different. Most need 3D rates on elevator. Mine do it the same as JohnVH but you have to experiment with the amount of throw for all of the surfaces. This one, if you have too much rudder, it will usually just do a fast snappy spin.
We also call these "Barber Poles".
We also call these "Barber Poles".



