Climbing Flat Spin?
 

So far the only true flat spin I can put my Morris Knife into is inverted. The entry is from slow inverted flight and I apply full rudder, full down elevator and add in some opposite aileron and throttle. Nice slow flat spin :) but I can only enter it inverted :(

Questions:

1) Is there a better/ easier way to get the plane stalled and enter the flat spin?

2) How do I do a climbing flat spin? Does the tail have to be low enough for the motor to pull the plane up? If so, I can never get the tail that low :(

George

Climbing Flat Spin?
 

I could never get my knife to do an inverted climbing spin. My su-do-khoi on the other hand is a different story. They were both balanced about the same, and both had about the same control movement, the only difference was the design and power! The su-do-khoi has a ys 63 outrageously overpowered! While the knife had an os 46 overpowered but not nearly as much as the other. I don't know if its the design or the power difference, but the suky would do it evrytime. I had a lot of deflection to be able to do this around 45 degrees. I have been entering a flat spin from a stall turn recently looks cool. but you can get in them in many ways. On my sudokhoi if you would just pull verticle and push both sticks to the top inside corners it would enter a climbing inverted flat spin. Happy flying

Climbing Flat Spin?
 

Capthis

I also have about 45 degrees on the elevator and I am using a .46FX. Maybe not enough power?

I like the idea of sticks in the top corners from vertical. That is the "correct" setup for a flat spin full rud/full elevator/opp aileron but the tail is starting low on entry. I will try it today but I have a feeling I am too underpowered.

Thanks

Stick positions!!!!!!!!!!!!!!
 

When both sticks are in the top 'inside' corner, you mean full throttle/right rudder and full down elevator/left aileron right? That is not positions for an inverted flat spin. With inverted spin you give same direction aileron as rudder to flatten it out, with upright flat spin it is opposite aileron to rudder.
Some fun fly planes, like Pinwheel, will stay in the flat spin no matter where your right stick is, as long as you have full rudder and some power.
DKjens

Climbing Flat Spin?
 

I understood top corners to be the top left corners with both sticks, this would be right rudder/left aileron. Isn't that what you want for a flat spin, opposite rudder and aileron?

I have always used opposite aileron and rudder when doing inverted flat spins. Isn't this correct?

George

Power...and...
 

The Morris Pen Knife armed with a .32 could push a little upward from an inverted flat....and we could get into it multiple ways from an inverted snap, vertical pinwheel/waterfall, stall....the plane needs a powerplant (the Pen Knife was designed for a 25-ish motor).

How about flying over some monster thermals to help out? Ha!

-Juhan

flatspin stick postition
 

For the inverted flat spin you want both aileron and rudder sticks going in the same direction.. Think about it... When you roll inverted, right rudder stick input makes you yaw left and vise versa, while the ailerons stay the same. Since the rudder reverses when inverted, you will have opposing deflection with both sticks going the same way.

I've found that if you have enough power to go from a hairer to a hover, then you have plenty of power for a climbing flatspin even if it does climb slowly.

Let us know what you figure out!
Matt

Climbing Flat Spin?
 

Yes I forgot to mention you have to cross the aileron stick over Until they are both in the same top corner if you push the sticks to the center. When inverted your rudder is reversed, like has been said. I just forgot to mention it. There are many ways to get into the flat spin it just seemed mine liked to climb if I entered that way? Sure is fun, when your buddies go "how in the H_ll are you doing that?" Have fun, Balsageek is prolly about right. If you can bring the nose up out of a harrier then you prolly have enough motor to climb in the flat spin. Has anyone got a plane to climb while upright? Is that possible?

Climbing Flat Spin?
 

I've had two planes that would climb out of an inverted spin. One was a model tech .25 extra with an os 32/macs pipe combo, and the other is my current plane, a magic 3d with a tt36 heli motor. They would even do a decending flat spin into climbing flat or knifeedge spin.

With the extra, I would usually enter into it via a lomchevak, either at a 45 or vertical (sticks together, full throttle, down elevator, left aileron, right rudder). Plane would to 3 or 4 cartwheels/tumbles, and start into an inverted flat spin. As it descended I would move the aileron over to the right a lil bit, close to neutral, and try to maintain flatness of the spin, using throttle to slow the descent. At full throttle, the plane would stop its descent, do three revolutions, and then start to slowly climb. The hardest part there was to keep it from snapping over into a waterfall. Youre going to need to give it some aileron to keep it from rolling over, but have to work it in small increments

Just make sure ya have some altitude to recover, as well as a strong, RELIABLE motor. You might have to richen the needle up a lil bit on a 2stroke if its cowled, cause it tends to heat up with the lack of airflow across it. Probably the same for gas too, but I cant say for sure, I dont have a gasser yet. :)

Flat spins
 

My Top Cap would do both upright and inverted flat spins. It would also do climbing tumbles. This was with a ST.51 on a Macs header and mousse can muffler. Tom

upright flat spin
 

My highly modified sig fazer (rip) climed great in an UPRIGHT flat spin, with the tt pro 46. It needed flaperon mixing on, but it would do it. (I know that's cheating) When, if I ever, get my wasp ready to fly... It should be a great candidate for this manuver.

Climbing Flat Spin?
 

Thanks for all the suggestions. I tried many approaches yesterday getting really nice inverted flat spins. The plane takes forever to get to the ground, but does not climb.

I may take off the heavy hub I added to balance the plane and see if being 1/2 inch tail heavy helps.

I think I am a little short on power using a .46FX on a 5.0 lb plane.

Thanks again for all the tips.

Climbing Flat Spin?
 

OK. Has anyone ever taken off in a climing flat spin? I've tried with everything I fly! Well, almost everything....

Climbing Flat Spin?
 

Do you mean spinning on the ground (tail-dragger I assume) and lifting into the air? Using lift from the spinning wing or thrust from the engine? Sounds cool if it can be done!!

I guess if you can do a climbing flat spin you can do a soft landing in a flat spin using the throttle. That would be cool too!!

Climbing Flat Spin?
 

Yup....thats exactly what I mean! Is it possible? A plank helicopter!!

Climbing Flat Spin?
 

I know this doesn't count but I practice taking off from a climbing flat spin on FMS. I can always do it but one wing is always low. If I'm not careful I will wind up flipping into the ground. Try it on FMS. For what it's worth.

Climbing Flat Spin?
 

I seen a guy land a morris the knife from an upright flat spin in Henderson Ky last september at their flyin. The guy was really good with the knife but he sure was excited when he landed form that flat spin. Put it right in front of him to. Awsome!

Climbing Flat Spin?
 

Where can I see or buy a video of these spins and other wild 3D.

Pat

Video
 

Yeah! I've heard of a Video series called "Wring it out" that has 3 volumes, I believe. I cant find it anywhere other than in some RC clubs's video library half way accross the country. Try using google to searche for it and you'll see what I mean.

Anybody know where to get this series or something like it?

Thanks
Jim

Climbing Flat Spin?
 

I am flying an Aces 1 profile edge 540. Last saturday I was getting lower and lower on the positive flatspin, breaking out at less than 6 feet comfortably. I figured what the heck--try the landing--so this time, with a light breeze right down the runway, I spun down to 2 feet, pulled it out, (into the wind) chopped the throttle and to my amazement, I greased it. Couldnt believe it. I did 6 more on sunday. It is more difficult with no wind at all, requires even more throttle management.... but--I am no hotshot...cant tail-touch yet--too risky for me--but the landing is very do-able with little risk to the plane, largely due to the planes zero recovery time.. Just make sure that its really FLAT FLAT and not wobbly before you commit. If one wing is down too much dont do it. This week I am going to try to get it on video...wish me luck!!

Climbing Flat Spin?
 

Goldarn hotdog pilots!! Congrats, lets see the video!