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Old Aug 13, 2012, 05:10 PM
Agressive driver
United States, CA, Santa Barbara
Joined Jun 2011
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What do you think it might be? I haven't put on the main rotors yet
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Old Aug 13, 2012, 05:17 PM
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mhills51's Avatar
kansas city
Joined Feb 2007
12,674 Posts
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.
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Old Aug 13, 2012, 05:18 PM
Agressive driver
United States, CA, Santa Barbara
Joined Jun 2011
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Okay. I will balance the blades and put them on.
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Old Aug 14, 2012, 12:18 AM
I don't want to "Switch Now"
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Toronto (Don Mills), Canada
Joined Dec 2002
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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.
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Old Aug 14, 2012, 09:32 AM
Agressive driver
United States, CA, Santa Barbara
Joined Jun 2011
1,201 Posts
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
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Old Aug 14, 2012, 06:00 PM
Gloves are awkward
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Preston, UK
Joined Dec 2004
1,194 Posts
Run it up without the paddles on? does it still vibrate?
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Old Aug 14, 2012, 09:15 PM
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Australia, VIC, Melbourne
Joined Aug 2010
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Some have said that they have that much power that they can break the pushrods.
Welp here they are side by side.

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Old Aug 14, 2012, 09:31 PM
Registered User
Kauai
Joined Jan 2011
4,330 Posts
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
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Old Aug 17, 2012, 09:00 PM
What package dear?
Hellysmack's Avatar
USA ILLINOIS
Joined Nov 2002
2,205 Posts
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.
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Old Aug 17, 2012, 11:14 PM
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pitchp's Avatar
Australia, VIC, Melbourne
Joined Aug 2010
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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!
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Old Aug 17, 2012, 11:51 PM
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pitchp's Avatar
Australia, VIC, Melbourne
Joined Aug 2010
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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
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Old Aug 18, 2012, 10:15 AM
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kansas city
Joined Feb 2007
12,674 Posts
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.
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Old Aug 18, 2012, 02:26 PM
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kansas city
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Here are the new canopies I got
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Old Aug 18, 2012, 10:32 PM
Brent 黑雁
BThirsk's Avatar
Canada, AB, Ponoka
Joined Jan 2012
1,772 Posts
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.
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Old Aug 19, 2012, 08:12 PM
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rancho san antonio, CA
Joined Sep 2005
775 Posts
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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