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Old Jan 03, 2012, 09:16 PM
Captain Murdock Flys Again!
WillieB69's Avatar
Joined Nov 2011
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Maybe I'm Just Not Cut Out For Helicoptors

As some of you know, I bought the HK136-M2 some time back. I managed to break the flybar, stablizer bar, or whatever you want to call it bar on the second flight. I ordered 3 replacement bars and got them in the mail today. I put one on and I've spent two battery charges trying to get this thing trimmed. Just when I think I'm close, it does something else stupid. I can't get a stable hover without it moving in one direction or another no matter what I do with the trim buttons. I did get it to stop lurching forward with a combination of the trim and moving the battery back a bit. Other than that, I'm stumped. I've been trying just little incriments at a time with the trims so I don't overshoot my mark but it seems to happen anyway.

Is there a trick to this I'm missing??
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Old Jan 03, 2012, 09:25 PM
Crash and Burn
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Joined Sep 2011
678 Posts
If the flybar broke, perhaps the main shaft or blade grips took a beating also? The larger transmitters have a subtrim setting which provides smaller increments, but I suspect that simply trimming may not be the issue.
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Last edited by lawlist; Jan 03, 2012 at 09:32 PM.
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Old Jan 03, 2012, 09:36 PM
Tampa,Fl
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United States, FL, Tampa
Joined Jan 2007
1,481 Posts
Take a deep breath and have a little patience. I have a 450. had a little mishap the other day. Bent flybar,bent spindle. replaced. all together to find out bent main shaft. replaced. all together just to find out I blew out the one way bearing too. I had it together 3 times already and now I have to go buy something else.
Heli's are fun but can have hidden suprizes.

On your trim question. can you get all your trims back to center ? if so, do that and start over because sometimes if you over trim one input, it could wack out another. only trim very small increments at a time.

+1 lawlist said too. It could be something else you broke but not know it.
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Old Jan 03, 2012, 09:43 PM
Cranky old fart
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Germantown, WI.
Joined Oct 2007
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I'd be more inclined to suspect you bought junk. Isn't that an MCX knock-off?
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Old Jan 03, 2012, 09:56 PM
Captain Murdock Flys Again!
WillieB69's Avatar
Joined Nov 2011
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Originally Posted by Balr14 View Post
I'd be more inclined to suspect you bought junk. Isn't that an MCX knock-off?
Possibly?

I bought it from Hobby King.
Everyone seemed to think I'd be OK with it.
I was gonna stick with 3 channels.....
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Old Jan 03, 2012, 09:59 PM
Captain Murdock Flys Again!
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Joined Nov 2011
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Originally Posted by lawlist View Post
If the flybar broke, perhaps the main shaft or blade grips took a beating also? The larger transmitters have a subtrim setting which provides smaller increments, but I suspect that simply trimming may not be the issue.
I really hope nothing else is busted. Nothing else LOOKS busted but what do I know?

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Originally Posted by Dale 813 View Post
On your trim question. can you get all your trims back to center ? if so, do that and start over because sometimes if you over trim one input, it could wack out another. only trim very small increments at a time.
I'm not sure if I can center them back or not. They're push buttons instead of knobs or sliders. I guess I could always count how many blips from one extreme to the other and go back by half......
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Old Jan 03, 2012, 10:54 PM
Cranky old fart
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HK helis have proven to be something of a crap shoot. Some are good, some are not. However, before you get too down on it, I would suggest you insure your swashplate is level, the top and bottom plates are together and servo arms have adequate movement. I also don't know what you mean by a "stable hover", but I wouldn't fixate on it anyway. It's never going to be as stable as a 3 channel and what point would it serve? You aren't learning anything if the heli just sits there for 10 seconds all by itself. Learning to hover in one place is a nice exercise for a rank beginner, but I think you are past that stage. When you get into 4 channel and above, you get no breaks with either hand, even for a second. So, get used to it.
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Old Jan 04, 2012, 01:57 AM
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Originally Posted by WillieB69 View Post
I really hope nothing else is busted. Nothing else LOOKS busted but what do I know?


I'm not sure if I can center them back or not. They're push buttons instead of knobs or sliders. I guess I could always count how many blips from one extreme to the other and go back by half......
If its pushbutton like mine, it makes a beep (high or low pitch) when you push the button. You can go all the way to the end, then count how many to the opposite end and divide by 2 (i.e. 40 pushes from all the way on one to the other.. 20 clicks would be half which is centered) or listen for the loud abnormal tone when you hit the middle.
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Old Jan 04, 2012, 09:19 AM
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Originally Posted by Balr14 View Post
HK helis have proven to be something of a crap shoot. Some are good, some are not. However, before you get too down on it, I would suggest you insure your swashplate is level, the top and bottom plates are together and servo arms have adequate movement. I also don't know what you mean by a "stable hover", but I wouldn't fixate on it anyway. It's never going to be as stable as a 3 channel and what point would it serve? You aren't learning anything if the heli just sits there for 10 seconds all by itself. Learning to hover in one place is a nice exercise for a rank beginner, but I think you are past that stage. When you get into 4 channel and above, you get no breaks with either hand, even for a second. So, get used to it.
Which HK helis are proven to be a crap shoot?

This helicopter has only a few bad reviews on the HK site, the majority of those reviews are about the charger, not the flight characteristics. In fact just about everything I can find on the helicopter says that it flies great. It seems to me to be a bit on the dishonest side for you to make the claim that all HK helicopters or knockoffs are "junk".
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Old Jan 04, 2012, 04:31 PM
Captain Murdock Flys Again!
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Originally Posted by Balr14 View Post
I also don't know what you mean by a "stable hover", but I wouldn't fixate on it anyway. It's never going to be as stable as a 3 channel and what point would it serve? You aren't learning anything if the heli just sits there for 10 seconds all by itself. Learning to hover in one place is a nice exercise for a rank beginner, but I think you are past that stage. When you get into 4 channel and above, you get no breaks with either hand, even for a second. So, get used to it.
It's not an exercise for me. It's for the heli. If I can get it to stay put when I'm not fiddling with the controllers, then I know it's gonna do what I want it to do when I am actually controlling it. It ain't perfect yet but I'm getting closer. Just gotta get the yaw figured out.

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Originally Posted by jwoodby View Post
If its pushbutton like mine, it makes a beep (high or low pitch) when you push the button. You can go all the way to the end, then count how many to the opposite end and divide by 2 (i.e. 40 pushes from all the way on one to the other.. 20 clicks would be half which is centered) or listen for the loud abnormal tone when you hit the middle.
This is what I did with it. Centered everything back and started from scratch. Just have a slight yaw to the right I gotta clear up.

Managed to snap the ball to the flybar link off one blade. Solved that by flipping the flybar over and attaching it to the ball on the other side. Saved the replacement blades for more serious damage.
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Old Jan 04, 2012, 06:25 PM
Cranky old fart
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Germantown, WI.
Joined Oct 2007
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Originally Posted by Barak1001 View Post
Which HK helis are proven to be a crap shoot?

This helicopter has only a few bad reviews on the HK site, the majority of those reviews are about the charger, not the flight characteristics. In fact just about everything I can find on the helicopter says that it flies great. It seems to me to be a bit on the dishonest side for you to make the claim that all HK helicopters or knockoffs are "junk".
It is an MCX knock-off, I didn't say it was junk and wasn't criticizing the flight characteristics. I have read posts that indicate more uneven quality than one would normally expect... not necessarily with this model.
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Old Jan 04, 2012, 06:59 PM
Captain Murdock Flys Again!
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Joined Nov 2011
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Originally Posted by Balr14 View Post
I'd be more inclined to suspect you bought junk. Isn't that an MCX knock-off?
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Originally Posted by Balr14 View Post
It is an MCX knock-off, I didn't say it was junk
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Old Jan 04, 2012, 08:16 PM
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Joined Dec 2011
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Hang in their Murdock... Everything is junk if it's not adjusted properly. Lots of brand snobs out there, but most stuff will come around if you tinker with it enough.
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Old Jan 04, 2012, 10:12 PM
Cranky old fart
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I didn't think I called it junk, sorry.
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Old Jan 05, 2012, 11:11 AM
Airplane and Heli Flyer
V-Man's Avatar
Canada, QC, Montreal
Joined Dec 2009
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I've got the HK-136, got one for my newbie dad and a coworker got one too. All flew perfect from the box. Might just be a bad one?

One thing to check is whether the controls are on low rates. If you've never flown an heli before you're likely to throw it into the wall at high rates...
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