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Aug 13, 2012, 04:10 PM
Agressive driver
What do you think it might be? I haven't put on the main rotors yet
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Aug 13, 2012, 04:17 PM
Registered User
mhills51's Avatar
Could be a lot of things. Is this a clone or align? usually the flybar can be close and even bent a little and not cause to much trouble. The HK shafts are not that great. You could try putting the blades on and running it up. Every thing on the head of the 250 is so light compared to the blades.
Aug 13, 2012, 04:18 PM
Agressive driver
Okay. I will balance the blades and put them on.
Aug 13, 2012, 11:18 PM
I don't want to "Switch Now"
pmackenzie's Avatar
Weigh the paddles. I have had some from HK that were vastly different in weight.
(One was poorly "packed" in the mould and had visible shrinking).

Added a bit of tape to it till it weighed the same as the good one and it was fine.
Aug 14, 2012, 08:32 AM
Agressive driver
Quote:
Originally Posted by pmackenzie View Post
Weigh the paddles. I have had some from HK that were vastly different in weight.
(One was poorly "packed" in the mould and had visible shrinking).

Added a bit of tape to it till it weighed the same as the good one and it was fine.
I will try that. I did notice that their main blades were hugely off balance
Aug 14, 2012, 05:00 PM
Gloves are awkward
ipjodan's Avatar
Run it up without the paddles on? does it still vibrate?
Aug 14, 2012, 08:15 PM
Retired
pitchp's Avatar
Some have said that they have that much power that they can break the pushrods.
Welp here they are side by side.

Aug 14, 2012, 08:31 PM
Registered User
I've crashed with my 215's 3 times and each time it broke the plastic servo arms but nothing else on the servo( the largest arm)!Im running all four on my Beam at 7v.
Steve
Aug 17, 2012, 08:00 PM
What package dear?
Hellysmack's Avatar
Wow sounds like a good servo.
Hey all, Posted last of my parts for my HK-250 on flee bay for any interested.

I must cut back and the 250 was a blast but times are hard and need cash.
Aug 17, 2012, 10:14 PM
Retired
pitchp's Avatar
Quote:
Originally Posted by Hellysmack View Post
Wow sounds like a good servo.
Hey all, Posted last of my parts for my HK-250 on flee bay for any interested.

I must cut back and the 250 was a blast but times are hard and need cash.
URL please for the guys here that may be interested in getting a bargain!
Aug 17, 2012, 10:51 PM
Retired
pitchp's Avatar
Welp I just tried the EXTREME Tail Boom Mount and the screws that they provided was no good. I couldn't even screw them in. Luckily I had some spare screws(HK250GT) and they seem to work fine
Aug 18, 2012, 09:15 AM
Registered User
mhills51's Avatar
Well got my second one all set up with the flybar and all Align parts. Only problem I that I used a align screw for the bottom main and they strip so easy I got it all but one mm in and the head stripped. Aahh! So now I either live with the play or take the whole frame apart and try needle nose or the dremel trick. Just a recap Tarot uses the best screws for a 250. They use a 6-T, HK use a 5-t, Value a philips, and Align 1.3 butter.
Aug 18, 2012, 01:26 PM
Registered User
mhills51's Avatar
Here are the new canopies I got
Aug 18, 2012, 09:32 PM
Brent 黑雁
BThirsk's Avatar
Quote:
Originally Posted by pitchp View Post
Welp I just tried the EXTREME Tail Boom Mount and the screws that they provided was no good. I couldn't even screw them in. Luckily I had some spare screws(HK250GT) and they seem to work fine
If you measure the screw threads on that piece, they are not even a standard metric size. I ended up just sanding the align one using it.
Aug 19, 2012, 07:12 PM
Registered User
Quote:
Originally Posted by pitchp View Post
Flybarless Rotor Head Assembly Trex 250 / HK250

http://www.hobbyking.com/hobbyking/s...250_HK250.html




This is a complete flybarless rotor head assembly for the Trex 250/HK250 helicopter. It's made from lightweight black anodized CNC alloy, and features high quality bearings ensuring smooth and accurate operation. Includes all linkages and hardware.

Specs:
Main shaft diameter: 3.5mm


Price: $20

RJX?? I thought they would of cloned the DFC and the new Tail slider! May be that's later on???
Got mine a couple days ago. Mounted it today. It uses the same feathershaft
as regular flybarred align.

If you mount it as is, and use a beastX, you'll only get purple in step J (6 degrees
cyclic setup). I swapped the swash balls for longer ones and now I can get
red in step J. There is a huge amount of collective and cyclic pitch before there
is any binding, so should be good for hardcore 3D, but I'm a 2D guy.

Waiting for some tail parts and then I can maiden it.


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