I have a 1/3 H9 cap and would like to do this maneuver.
What are the tricks or secrets to executing this maneuver repeatedly?

Are they the same steps for any plane?

Thanks
Craig

If you have access to the Dave Patrick Volume 3 video, I think he describes how to do this there. If I remember correctly, you enter an inverted spin and then immediately give airplane up elevator. This should level out on the edge and continue spinning. Good Luck.................

Full down elevator, full right aileron, full right rudder and idle throttle. This will give you a knife edge spin with MOST aerobatic planes from ANY attitude. Give yourself plenty of altitude the first couple of times, and enter relatively slow, but you don't have to be stalled.

Bryan

My Hots profile does a beautiful knife edge spin with full throttle, full up and full right rudder.

Steven

Does it looks like a waterfall to the side?
I have a new (for me) gp cap 232 and yesterday on my
thrid flight I made the manuever trying something else
it looks awesome and very tight I just can`t wait to fly this
baby again.

To:Hawk21
This does not look like a waterfall on the side. In a conventiolal spin the plane is stalled and rotates around the CG generally with the nose in a slight down attitude. In a knife edge spin the attitude of the wing is generally vertical with the plane coming down on the side of the fuselage (hence the name knife edge) and at a very rapid descent. Recovery from a conventional spin needs to be made after the plane recovers air speed and in the knife edge spin recovery is all but instant due to the rapid descent. Bill

Bill,
I can`t visualize it yet.
I understand that the airplane is knife position
what it has to do next? Rotate on the cg?
Benny

I can do these on my sim and it looks like a flat spin but in knife edge position. So the plane is spinning parallel to the ground with the wing being vertical. It's not tumbling side over side like a hammerhead that just keeps rotating. But it's flat spinning. Only it's knife edge.

Maybe that helped?
Josh

Just go to www.downonthedeck.com and look at the videos #2 I believe, there is a short clip of a plane doing EXACTLY this manuever.

This maneuver requires some experimentation with the amount of throttle, aileron and rudder. The elevator is all you can give it 3D. Try stating it with a low speed tumble at high altitude (r rudder, l aileron, full down 3d rates). As the plane falls over inverted, go to left rudder and about 1/2 throttle. If it just snaps on its way down, try it again with less rudder and play with the throttle, usually less of it. Once the tail starts rotating around the wing, you can increase throttle and it will spin faster. BTW decent is RAPID! The nickname for this is a Barber Pole, at least at my field.

The plane does rotate (spin) around the wing. Some designs do it with the wing almost vertical and some with the wing at an angle to vertical. CAP's seem to do it in the vertical position due to the forward placement of the stab. Bill

Knife Edge Spin video direct link
http://www.scaleaerobatics.com/galle...t/tip_spin.wmv

start a normal upright spin and reverse the ailerons and this will give u a knife edge spin

???
start a normal upright spin and reverse the ailerons and this will give u a knife edge spin
???

The above will give you a flat spin. Not a knife edge.

Reverse the elevator.
Bill

Normal spin then opposite rudder. Some planes need to start
from inverted.

I don't think many people are very clear on how to do this maneuver....

I was thinking the same thing Sounds like you can just jam the sticks any old way, and end up with a knife edge spin

Kevin

I have witnessed many a spin that was described as a knife edge spin that frankly wasn't. Most often a version of a flat spin entered from a snap is described as a knife edge spin because the plane rotates through knife edge getting there. This is particularly true when the plane is not completely stalled and the entry (snap roll) gyrates the plane a bit.

The information I have posted above is direct from the video "Wringing it Out" by Dave Patrick of TOC fame and now of his own company. He mentions that the Ultimate rolls out of the knife edge spin for some reason. Dave is the designer of the Carl Goldberg Ultimate as well as the ones his company produces.
View the tapes and see what a true knife edge spin looks like.

I'm sure there are cases where a plane will knife edge spin with different inputs however the described method is all but a fool proof way.

Fly and enjoy,
Bill

On my 60 size Extra, I give it full left rudder, full left ailerons, full down elevator, and full power. My control surfaces have 45 degree deflection. Then I give it full right rudder and a quick full right aileron and back to center while keeping full down elevator and this will transition to an inverted flat spin.