Ed_Moorman
Posts: 3683
Joined: 1/5/2002
From: Shalimar,
FL, USA
Status: offline
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RXRCER is right! The Tango is one fun little plane. It does have an aerodynamic characteristic that can cause the novice some trouble-it rolls very well with rudder.
The high wing location and deep fuselage under the wing causes a lot of roll due to yaw when rudder is applied. This can be disconserting to some pilots, especially on take off.
-If you lift off while you are holding any rudder in, expect a roll. This effect is what some people are calling a "torque roll" on take off. At altitude, with full rudder throw, it will do a nearly axial roll using rudder only. On take off, when you are holding rudder, it has the same effect as if you were holding a lot of aileron when you break ground.
-First, as RXRCER says, use low rate rudder for take off. This will reduce the amount of rudder roll.
-Second, blip in your rudder corrections and release the stick, rather than holding in rudder. The plane is light and will get airborne easily so don't hang around on the ground. Just don't be holding rudder when you lift off or the Tango is going to roll on you.
-Third, get up to altitude and pop in full rudder. I have my rudder touching the elevator or a micron less. If you hold full rudder, it will roll once, nice and tight, then fall off into a flat spin. Just rudder. Release the controls and it recovers quickly. One time I got into a wing tip spin, but it was still cool with rudder only.
I have a solution to fix the rudder roll for those who do not like it. I have used it on other planes. This is downward end plates. These act to decrease the effective dihedral, and a high wing location is about equal to 3 degrees of dihedral.
The Tango wing tip is flat, but has lightening holes. I am taking the wing over to Flaps, my builder, this week. He is going to take the covering off the tip and fill in the lightening holds with 1/8" aircraft ply, then skin the tip with 1/16" ply. Then we'll make the plates from lite ply. They will be attached with screws into the ply. They'll be longer than my estimate of how much I need. I'll fly and try rudder. With extra long downward plates, I'll expect a reverse roll. I'll land and trim off a quarter inch and try it again. I'll repeat this until I get no roll. Then Flaps will make me some nice balsa tips and cover them to match the plane. If you have read my R/C Report column, you know how I love a project.
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Ed Moorman, AMA 553, KD4QBM, Revver Bro #156
R/C Report Magazine, Fun Aerobatics Column
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All Forums >> RC Airplanes >> 3D Flying! >> RE: The Tango 40 ARF from Hangar 9 
RE: The Tango 40 ARF from Hangar 9 - 
). I've said it before and I'll say it again. Forget what the books call it. It's a "whatever" plane. On low rates and throttled back you could use it as a trainer. Full bore, funfly, 3D, whatever. Mine has max rudder and *@$% it all I did have to back off on the rudder. Full throw you might get a piece of greased paper between it and the elevator. Ailerons, about 3" up and down, and 2 1/2" up and down on the elevator. Dual rates? What for? It's too damn much fun the way it is. I also have the Modeltech Magic 2.0 (I think that's what it is, but it's the new one). With a Supertiger .45 and an APC 12x4 on it, and I like to compare the two. Actually, the Tango is a far more aggressive plane. Try this. With this much throw, at about 3/4 throttle straight and level, try a snap roll and watch what happens. Same speed, and now throw full rudder to it. You'll be torqued. No other plane does what this one does. Last Sunday, took it to about 200' ballpark, and we counted 62 of the flattest flat spins I've ever seen. Am I saying this thing is a ball? Mines got a Magnum .70 4 stroke with a 13X6 prop. Nope. Not a 3D prop I know, but I don't need wind to hover it. Why keep the plane still when it's so unpredictably much fun flying around? Nope. Don't reccomend it as a beginners plane unless you set it up as that. If you've got a high/low wing trainer under your belt, set this thing up not as aggressive as I have mine. Roll it, loop it, snap it, just play with it. Then when you're ready go for broke. Skip all the preliminaries about "no rubber bands to hold the tank in 
, weak 
