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JR-Spektrum . E-flite . Fast Lad Performance

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e-E-Flite Blade MSR CP CX MCX 400-3D > cant keep tail under control!!
 
 
hghlndr85
Senior Heliman
Location: northeast, PA

My Posts This: Topic  Forum
im having quite the difficulties with tihs littel chopper for one i think my 4 in 1 might b screwd up bc anytihng above 3/4 the led is red adn my collective will jump around adn i did the collective fix aready.
2nd my tail is all over if i get the trim adn mixing set while in hover it just doesnt hold when i move, i tired adjusting the gain but its not helping, i expected the tail to stick adn hold while in hover or moving but it kicks out, sounds like the rpms n the tail ar goin high adn low too, ne ideas?
08-10-2005 Over year old.
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jcrack_corn
Veteran
Location: End of Time

My Posts This: Topic  Forum
make sure you are powering the 4in1 down after each change of the pots, it only recognizes your changes on POWER UP.

Lift off and hover, take your finger off of the left gimble, observe what happens

1.) Heli nose turns left ---> increase proportional
2.) Heli nose turns right --> decrease proportional
(power down!!!)
3.) heli points straight --> proportional is set correctly (for FULL charge, as the battery dies, you will have to add RIGHT trim to maintain tail power)



Now that that is set, lets set gain.
Hover, does the tail "wag"
Climb out, does the heli kick left tremendously (some is ok)
End climbout by drastically reducing collective (let heli fall), does it turn right drastically?

Remember all of these things....if the tail is kicking out a lot, you probably need a little more Gyro gain, if the tail is wagging, you probably need less gain (gyro is hunting back and forth looking for the perfect position, which it cant find, so you decrease gain).

Thats all there is to it with a rate gyro.....when you fly circuits the tail WILL weathervane around with the helicopter, no getting around that unless you drop a heading hold in it.

I can promise you though, the standard 4 in 1 is MORE than capable of putting out enough tail power to keep the thing pointing straight, but it does take some fine tuning -- and it does change as the battery dies. (Lithium batts maintain a much more constant voltage during discharge so this is much less of a concern with them).
08-10-2005 Over year old.
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jcrack_corn
Veteran
Location: End of Time

My Posts This: Topic  Forum
by the way, it is supposed to turn red about 3/4 throttle...

and when your collective jumps, is it accompanied by "lack of noise" like the motor turned off too? If so it might be glitching, I've noticed that there is some glitching on mine with the way the anteanna is run around the skids....i took a few loops off and ran it to the tail, problem solved.
08-10-2005 Over year old.
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Ace Hobby . Esprit Model . Thunder Power RC

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e-E-Flite Blade MSR CP CX MCX 400-3D > cant keep tail under control!!
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