When I throttle up on my Electric EasyGlider it wants to climb straight up. Trim is fine with power off.
I've worked with expo and dual rates but never used mix.
should I be able to add down elevator as I increase throttle?
I'm trying to set this up on a new DX7 Spectrum.

I'll reread the maual. any tips?

Steve

Is it possible that your thrust line is off? RG

It is a very common mix. Another way to do it is to mix up elevator to low throttle. Some radios will allow you to enable the mix at half throttle and below, leaving your flying range mix-free. Related issues are maneuvers like a stall turn, when you go to idle you will have some elevator mixed in, so you will learn when to feed in additional inputs to counter-act, as all mixes will have a disadvantage as well as an advantage.

Iwould try both and see what works best for you. Since Ido most of my flying at half throttle or above, Iwould choose to have less mixing occuring in this range. You may choose otherwise.

The best thing to do is to add down thrust on the engine. 

The key word here is GLIDER. It's supposed to do that.</p>

Power it up high, cut the power and glide it.</p>

On the EZStar... adding thrust ..... it might be UP thrust....rather than down thrust.....since it is a pusher with the engine set high above the fuse. Rich

http://www.hobbypeople.net/gallery/240009.asp

oops, missed that part</p>

mixing down with throttle up is counter productive......when you add power you want to climb....I can't ever think of a situation where you add power to descend......less power perhaps as all you want to do is get to a thermal....good flyin

Good Grief this is not some Yak, Cap, Suk, Extra sport aerobat, patten plane or silly 3D thing. Its a Trainer/glider and this is the trainer forum I think.

Using a pitch/power mix on this nice flying little trainer is going to be so detrimental to its mission that it only going to cause the fellow a lot of heartburn.

Fact is in all fixed wing powered aircraft model or full scale the Pitch Trim will be changed everytime time there is a power change up or down. Yes of course there are ways to minimise it depending on the mission of the aircraft such as up or down thrust (as needed) However it will never be completely eliminated. That is just facts of life and it is far better to learn how to fly and trim the airplane.

With many gliders and park flyers as well as most old timers unlike other types use substancial decaledge and specifically wing to stab which often is as much as seven or eight degrees. This while the aerobats and even some modern trainers us as little as zero wing to stab. What this does is provide much more pitch stability (Hmm Trainer) but it also cause the throttle now become the primary pitch control and not the elevator. The elevator mearly becomes a trimming device.

Its a Trainer if it climbs to steeply for you pull the power back a bit.

John

I just added two washers to add some downthrust to the motor.
I'll fly it in the am and see what happens.

I'm just trying to figure out how to do a mix on the DX7. ( I'm setting up all my planes now)
The 1st thing that come to mind for me is to add down elevator to throttle on my EasyGlider.
(nothing else I would need a mix on now.)
The EasyGlider Flys with the motor off most of the flight. It flys great.
With the brushless multiplex motor it climbs to altitude in no time BUT the more power, the more down elevator I have to hold.
I've been told this is partly due to the wing design of a glider?? Its not going to fly fast well.
Ihad to cut the nose off and make a new plyfirewall to mount the motor so I'm sure my thrustline is off. so maybe the washers will help.

Seems like a throttle mixed with down elevator would work in this situation.?
The throttle is usually off so it will only come into play when I'm climbing to altitude.
Iknow it sounds backward, adding down to go up but thats what I have to do anyway to keep from doing a loop.
Which gets me back to my thrust line....

Steve

Bingo, Its called decaledge and specifically wing to stabilizer decaledge. Re read the third and forth paragraphs in post #9. Thrustline changes can help a bit but using a silly throttle to elevator mix is just going to create a monster.

Attempting to force an airplane to fly faster than it its design speed (and the key factor is the high positive wing to stabilizer decaledge) without a corresponding reduction in decaledge to a very low or zero relationship will only create a horribly unstable airplane in pitch.

All conventional airplanes exhibit trim changes with power changes, you cannot escape that. learn to fly and trim your airplane. Flying airplanes with high wing to stab decaledge remember power is your primary pitch control not the elevator. As was already mentioned fly it to altitude and glide it down or fly level slowly. Thats what it is and thats the way its intended to be flown.

John