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Blade 400 Problems

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Old 03-28-2012 | 04:33 PM
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Default Blade 400 Problems

Hey everybody,

Totally new to this game and recently purchased a Blade 400 second hand. I own the Blade 120, have flown it for over a year and am now bored with it. I feel quite comfortable keeping the 400 stable but got to cocky and brought her down hard. I bent the tail boom and broke the rotors. I managed to fix everything but when I tried test flying it, the head speed wasn't getting fast enough to get it off the ground. I cut the power, but it quickly idled right back up again so I hit the throttle hold on my DX6i controller. The helicopter started making a high pitch buzzing noise so I unplugged the battery. I looked it over and noticed that one of the servos skips a bit when I run it back and forth. Could this be the reason for all this? When I connected the battery today, the helicopter continued to beep and the high pitch noise was still present and building!


Or is there something wrong with my ESC?



Thanks for the help, I'm trying to learn all this and the instructions don't say much.



-o-<br type="_moz" />
Old 03-28-2012 | 04:39 PM
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Default RE: Blade 400 Problems

Well the servo has a stripped gear and will need to be rebuilt or replaced. The other problems are definitely stranger, not sure what to make of them off the top of my head. If throttle hold didn't kill the motor then something really weird is going on. You didn't mess with the radio profile after the crash did you?
Old 03-31-2012 | 06:14 PM
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Default RE: Blade 400 Problems

Played around with it more this weekend. Didn't mess with the radio profile at all. Fixed everything except the random firing of the servos. It's wierd, all of a suden the heli will just spool up full throttle without any input into the control. My hobby shop says it's the Tx, (DX6i) and I should call Horizon....



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Old 04-22-2012 | 04:23 AM
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Default RE: Blade 400 Problems

okay, the servos will need to be fixed or replaced as stated before by my friend Skunkman!

they will have no bearing at all on the esc/motor problem as the power is not servo controlled!

you can check several things:

there is no damage to the esc

no damage to Rx

no damage to the battery

no damage to the motor

all connections into Rx are correct

the motor connections are secure and no bare part is connecting anything else

apart from all these, make sure you haven't adjusted your throttle range on the esc (easily done by connecting power to esc when you have the throttle stick in the high position, not sure if it's applicable to your esc but wouldn't hurt to research it!?)

go in and re-check the throttle curves and also, a very simple one, make sure you're not applying power with the idle-up sw (F mode) in the "1" position! in idle-up the curve should resemble a "V" so that you're getting higher power at either end when you're at max +/- pitch and then less power when the pitch is reduced to zero in the centre, when there is less drag/resistance. this might explain the blades spooling up when the throttle stick is at the low position!!??!!

let us know what you find

Matty
Old 04-22-2012 | 04:28 AM
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Default RE: Blade 400 Problems

p.s.

if you wish, PM me and i'll let you have the settings i have in my DX6i for my B400!?

Matty

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