Climbing Spin!
 

Hi my main model is a weston cougar and i have been told that it is possible to actually perform a spin where the aircraft looses no height or actually climbs!!! is this possible can anyone tell me how to perform this thanks CougaRules.

RE: Climbing Spin!
 

I have never flown a cougar, but to do climbing flatspins you need a very rearward CG and lots of elevator throw. I'm sure others will give you some better answers than me, but maybe this will help.

Kenny

RE: Climbing Spin!
 

CougaRules, a rear CG does help. But you will also need plenty of power, and lots of elevator and rudder throw. I prefer to have enuff aileron throw that it will snap out of a flat spin when you feed in too much.

I have not flown the Cougar so here are some general tips.

Upright flat spin, gain some altiude, stall the plane, go full left rudder and aileron and full up elevator. Start adding power and at the same time roll the aileron stick over to the right. The plane will start flattening out and if you have enuff aileron throw at some point it will snap out of the spin, that just means you went too far.

Inverted flat spin, gain some altitude, stall the plane, go full right rudder, full left aileron and full down elevator. Start adding power and roll the aileron stick to the right. Same as above

On some planes there is a point in bringing the ailerons over just before it snaps out that the plane will actually start to climb, if everything else is right.

Flatspins can be entered several different ways, not just from a stall. Try it from a vertical upline. 45 degree upline ending in a snap to a flat spin, etc, the possibilities are endless.

Some folks and some planes have a hard time coming out of a flat spin, so to start with come out high. I like to neutral the ailerons and rudder and fly out. Some folks chop power, neutral all the controls and maybe even feed in a little reverse rudder, let the nose drop to build some speed and then fly out.

I don't know how it works but some planes are capable of a beautiful inverted flat spin using the following. Full right rudder, full left aileron, and full up elevator (yes I typed full up elevator). Start feeding in the power and cross the aileron over. Perfect hold in one place inverted flat spin and by jockying the controls around a little bit it might just climb. The H9 Pizzaz was like this. Somebody care to explain this one?

Like I typed these are some general tips, hopefully someone can list out exactly what you need to do for this particular plane.

Ed M.

RE: Climbing Spin!
 

I'd like to add to the above information, that adding reflexed ailerons ( a small amount of up) and lots of power seem to help. And this only applies to an inverted flat spin. For some reason it will climb easier inverted then it will when it's right side up.
But then again this only the experience I have with my airplane and the variables are many.

RE: Climbing Spin!
 

There's nothing like a Morris Hobbies Spinsation when it comes to spins. It's quite easy to get it into an inverted flat spin, and hold it. However, I agree that you need to have loads of power to make it climb. With a .46 FX, it will slowly come down at about a foot a second or so. Really neat stuff. I was told that the Rossi mini tuned pipe for O.S. (and clones), in conjunction with an APC 12.25x3.75, is the ticket. I bought one of the tuned pipes, and am anxious to try it when spring rolls along.

Robb

RE: Climbing Spin!
 

the trick to getting them to climb ......all of the above posts + you need extra power but increase that power slowly or the plane will start flipping over on itself rather than spinning

also, use an apc prop....they are not the best for every 3d maneuver (heavier than wood)) but they are the best at maximizing torque/power and that's what you need to get the climbing part of the climbing flat spin.....

trying them with the tank closer to empty doesn't hurt either...(less weight)

RE: Climbing Spin!
 

Thanks for the quick response guys ill let you know how i get on!!

RE: Climbing Spin!
 

Got my Burrito climbing inverted flat today. It has huge elevator thow, and I moved the CG back a lot today. It really isn't overpowered with the .46 fx (plenty, just not "over"). And my Sledge with Saito .91 will slow way down, but not climb.

So I'm thinking that all of that is important, but of CG, throw, and power, the power is least important, though you're still gonna need lots. Anyone else getting the Sledge to climb? I may move the CG back more.