Can an Avistar flat spin?
#3
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From: gone,
Short answer... NO!
Long answer:
To get the Avstar to flat spin... you would have to move the CG back considerably... right on the bloody edge of uncontrollable. This is true of any trainer design.
The Avistar is meant to be an ntrductory trainer with some aerobatic ability. If you manage to force it to flat spin... there is a good chance it won't recover. Don't bother trying to get the Fun-Fly aerobatics out of it. If yo are ready for those maneuvers, you are ready for a new airplane. Try a Sig Somethin Extra or some other Fun Fly design for the Flat Spins.
Long answer:
To get the Avstar to flat spin... you would have to move the CG back considerably... right on the bloody edge of uncontrollable. This is true of any trainer design.
The Avistar is meant to be an ntrductory trainer with some aerobatic ability. If you manage to force it to flat spin... there is a good chance it won't recover. Don't bother trying to get the Fun-Fly aerobatics out of it. If yo are ready for those maneuvers, you are ready for a new airplane. Try a Sig Somethin Extra or some other Fun Fly design for the Flat Spins.
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From: sparta,
TN
MY AVISTAR FLAT SPINS GREAT. IT WILL DO ANY THING BUT KE. SOME ARE NOT AS PRETTY AS A TRUE 3D OR TOP END PATTERN SHIP. BUT IT WILL DO IT IN STYLE LOOKS BETTER THAN A TRUE 3D PLANE DOING IT
WHEN INVERTED IT CLIMES A LITTLE MAYBE A FOOT EVER 18 TO 20 FEET. NOT AT ALL OUT OF CONTROL! PILOT MAYBE
WHEN INVERTED IT CLIMES A LITTLE MAYBE A FOOT EVER 18 TO 20 FEET. NOT AT ALL OUT OF CONTROL! PILOT MAYBE
#6
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From: Locust Grove,
GA
Yes it will flat spin. That is how I crashed mine when I was learning. I got it into a spin and the engine died. It kept spinning. The only damage was where the brace pulled out of the wing when it hit. Looked funny and there was nothing that me or the guy who I gave the transmitter to could do. WE just watched it and it was a beautiful sight (until it hit the ground)
#7

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It is possible to make it flat spin. It will be a combination of airplane set-up and pilot technique. The problem is nearly all trainers are rigged fairly nose heavy to make them safe for novice pilots and the controls are set for very little movement. As has been mentioned, you'll need to move the CG to the rear, not so much that you can't fly it, but to where the plane can snap roll fairly easily. Then you'll need to set your high rates for probably as much elevator and rudder control as you can get. it would be nice if you could get 30 degs, hopefully more.
Next, you need to be able to recognize a flat spin mode, which is not always level flat. A normal spin will fairly steep nose down with fast rotation. Bear in mind I'l talking about 40 sized planes. When the plane enters a flat spin mode, the wings will become more level and the nose will raise. At the same time the rotation will slow. The spin will look different from what it was. As I mentioned, in many sport planes, the nose won't come up very much, maybe to 30-45 degrees down as opposed to 60-70 degrees down.
To enter, do a snap roll at full power and hold everything until the plane falls into a downward spin at full power. To the left usually works better. Then slide the ailerons over toward the opposite side while watching the plane. it should flatten out. You normally end up with the right stick in the lower right and the left stick in the upper left.
We are dealing with combinations of controls here. You need lots of elevator to stall and lots of rudder to hold the plane in the spin while the ailerons try to flatten the wings. The power provides airflow over the control surfaces to do this. If your engine quits, as has been mentioned, you may not have the control authority to get out. Fortunately, you hit flat with usually minimal damage.
Some planes flat spin with down elevator (go figure) and some, once you are in the flat spin, you can move the elevator up or down with no effect at all. If your plane wants to kick out of the spin when you cross the ailerons, you need more elevator and rudder control. On planes with very large ailerons, you have to be very easy with them. This is the case of a novice with a fun fly plane. He may have normal elevator, but lots of aileron and the ailerons over power the rudder, kicking the plane out.
Next, you need to be able to recognize a flat spin mode, which is not always level flat. A normal spin will fairly steep nose down with fast rotation. Bear in mind I'l talking about 40 sized planes. When the plane enters a flat spin mode, the wings will become more level and the nose will raise. At the same time the rotation will slow. The spin will look different from what it was. As I mentioned, in many sport planes, the nose won't come up very much, maybe to 30-45 degrees down as opposed to 60-70 degrees down.
To enter, do a snap roll at full power and hold everything until the plane falls into a downward spin at full power. To the left usually works better. Then slide the ailerons over toward the opposite side while watching the plane. it should flatten out. You normally end up with the right stick in the lower right and the left stick in the upper left.
We are dealing with combinations of controls here. You need lots of elevator to stall and lots of rudder to hold the plane in the spin while the ailerons try to flatten the wings. The power provides airflow over the control surfaces to do this. If your engine quits, as has been mentioned, you may not have the control authority to get out. Fortunately, you hit flat with usually minimal damage.
Some planes flat spin with down elevator (go figure) and some, once you are in the flat spin, you can move the elevator up or down with no effect at all. If your plane wants to kick out of the spin when you cross the ailerons, you need more elevator and rudder control. On planes with very large ailerons, you have to be very easy with them. This is the case of a novice with a fun fly plane. He may have normal elevator, but lots of aileron and the ailerons over power the rudder, kicking the plane out.



