Dual Rates
 

Hey all:


YUPit's me ............Again.


On my futaba T6EX the duel rates go to 140, Iwas wondering how you guys set your single rates ?

If there set at 100. then Iset dual at 140%

is this what's called a 40% plane ?



thanks

And Please bare with me, I hope I'm NOTasking stupid Questions

RE: Dual Rates
 

I don't understand your figures.  I set maximum at 100% throw with about 60% exponential, then a medium at 70% with 40% exponential and low rates at 50% with 25% exponential. 

Guess it depends on the radio.  Mine are all Futaba.

RE: Dual Rates
 

Ok so yo uset your regular rates at 50%....

Iset mine at 100, and then dual at 140 %

RE: Dual Rates
 

It might be easier when discussing to call them low and high rates. Dual rate is what it does. So your low rate is set at 100% and your high rate at 140%. I also like to have my switched be up for high rate and down for low rate. It's easier to remember.

40% is the size of the plane, it has nothing to do with the radio. If a Full scale Extra 300 that a man sits in and flys has a wing span of 30 feet. Then a 50% model of an Extra 300 would have a wing span of 15 feet. A 40% model of the same plane would have a wing span of 12 feet. ( 30'x.40=12')


david

RE: Dual Rates
 

just fyi you reduce your servo torque if with rate's chopped down .. in other words you should adjust mechanically for what you need... before you reduce your throw via programing

RE: Dual Rates
 

thanks for the post.

Ithink sometimes we set up our systems diffrently and we have a little tremanogoly diffrances. But the out come is the same.

I'm sure this is where MY confussion comes in at.

thnaks again

RE: Dual Rates
 

Take a look at the manual- most manufacturers give deflection at low, medium and high throws in mm. For dual rates, set rates set at 100% on the TX and adjust the throws mechanically by changing hole on the horn into which the clevis is installed and position of the clevis on pushrod. By chance if you cant obtain the medium throws at 100%, only then try to reduce the value down from 100% to get medium throws. Then reduce the low rate to obtain the required low deflection.

This method is conservative way of setting it up. Once you take off, if you cannot handle the medium rates, you can always go down to low rates. However, if you set up high and medium rates, you may be in trouble if you cannot handle even the medium rates.

Since you have the 6EX and it offers only dual rates, set it up with medium and low rates first. Once you are more used to the airplane, slowly increase low rates towards medium and medium rates towards 3D rates

Ameyam

RE: Dual Rates
 

Expo seems to be as or more useful than dual rates.
Poking around, many models seem to have the high rate set at 100%, and the low rate at about 70-75%.
I'd favor a high expo at the high rate, and a lower one for low rate for initial setup . Say 40% high, and 20-30% low.
Setting up the servo centering and travel correctly is fairly important, and helps with such things as matching servos and reducing
peak currents, as well as improving resolution. Allowing control surfaces or servos to "hit the stops" is not really desired.

RE: Dual Rates
 

Expo and DR really need to be used in combination. They work in different ways. DR limits the amount to total movement of the surface whereas Expos soften the centre point and make the airplane less reactive.

If it the Reactor or similar 3D airplane you are talking about and you are a decent pilot, you may not need expo. I have expos only on the Phoenix Extra 60, that to only to reduce any snapping tendencies. Expos usually hinder 3D flying

Ameyam