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Old Nov 30, 2012, 09:38 AM
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Originally Posted by Balr14 View Post
Glue with CA, warp the break area with dental floss or fine thread and soak with CA. Even if it doesn't hold, you have effectively created a receptacle that you can put hot glue in.
That is an awesome idea. Will do that. Thanks !!
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Old Nov 30, 2012, 09:56 AM
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That is an awesome idea. Will do that. Thanks !!
It's an old trick. If you know the material you are working with won't bond with CA, make the receptacle by wrapping and soaking with epoxy. It's bigger and bulkier, but very effective. I used the floss - epoxy method when I broke the canopy mounting post off of the frame on my SRB Quark over 4 years ago and it's still holding just fine.

Here's another tip: your previous experience is flying a DH9116, which is highly stabilized and has muted response. This type of heli gives you the luxury of being able to react to situations. People who fly them learn to react very quickly and think they are pretty good. But, when you move away form this type of heli, you no longer have the luxury of reacting. If you are reacting, you already crashed. You have to anticipate, act and counteract; always stay ahead of the heli, make it do what you want to do, not what it wants to do. If you get behind, stop the heli and start over. If you try to catch up, you will crash.
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Old Dec 01, 2012, 09:54 AM
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Got about 4 feet off the ground, highest I've been yet.

This thing flies forward accidentally faster than the 9116 can fly full tilt.

I'm not saying full-tilt as in "dive speed". I have had the 9116 going hyper-speed
in some steep dives. I'm saying from a hover, to full forward cyclic on "fast" rates.

All you have to do is give it about 10% forward cyclic (barely move the stick) to match the
9116 at 100% forward cyclic. The HK250GT would be doing forward cartwheels at half
of that cyclic input.

I don't understand how anyone could get bored with these.
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Old Dec 01, 2012, 10:07 AM
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That's an extremely good observation. You should probably change your title to "250GT from a DH9116". Those type of threads attract lots of interest and teach us all something. Guys like me can tell people how difficult it is, but we don't have the same perspective as somebody actually doing it.
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Old Dec 01, 2012, 08:06 PM
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Be careful with the 250 because like you said "It's a rocket and it's wickedly fast and agile". I learnt that the hard way,
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Old Dec 02, 2012, 01:45 AM
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Be careful with the 250 because like you said "It's a rocket and it's wickedly fast and agile". I learnt that the hard way,
Got any parts you want to donate ?
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Old Dec 02, 2012, 11:36 AM
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I just think I had a revelation reading a 450 build.

My tail was always drifting slightly, making it very difficult to fly.

I had the gyro set to standard.
Probably should be in lock mode, right?

Can't wait to try it... Charging up now...

I will die if it was that simple.
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Old Dec 02, 2012, 11:42 AM
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It could also be it just needs a minor pitch adjustment, if it always drifts one way.
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Old Dec 02, 2012, 12:49 PM
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It could also be it just needs a minor pitch adjustment, if it always drifts one way.
Nope it goes either way. Can never seem to keep it centered.
Always spins left or right, never seems to hold center.

Could be the tiny bit of slop in the linkage, still messing
with it.
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Old Dec 02, 2012, 01:41 PM
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New problem. Got the head locked, and was hovering << AWESOME >>
best I have done yet. It was actually going pretty much where I told it to.

Then mid-flight, the tail lost authority, so I set it down.

After looking close, I saw that the belt was suddenly on inside out.
(the teeth were facing out instead of in).

It is also slightly frayed in one spot. I assume the loose threads caught
somewhere and made it flip. I'm probably lucky it didn't explode mid-flight.
The head speed on these is insane, even with a beginner setup.

Anything I should be looking for? Or do these stock belts only last 20 flights?
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Old Dec 02, 2012, 02:16 PM
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Usually the belt flipping like that means it got loose. Belt quality of these clones is not good and they stretch easily. Check to see if the Wasp belt is compatible. Or, try a LHS for an Align 250 belt. I hate replacing belts. Especially on a 250. While you are at it, check the tail boom tube. A Wasp boom might fit and I believe it's a lot stronger.
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Old Dec 02, 2012, 02:18 PM
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HK250GT Stock Belt

Ok, got it sorted. Actually, I am lucky to get 20 flights.
According to responses on the HK site, Some people only get
5-10 flights out of a stock belt (although I'm sure they had them
too tight).
Only one guy said he had 50 flights on a stock belt, and he probably
works for Hobby King

It's a $2 part, and you get what you pay for.
I need to buy the Align belt, and all should be well.

Every single heli I have is grounded, awaiting parts...
What a crappy weekend

Well, it wasn't all bad. The 4 minutes of hover on my 250GT before
the belt went out made it all worth it. That was so awesome.
And at least I didn't total the bird when it went, others did.

I need to remind myself of that
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Old Dec 02, 2012, 04:27 PM
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Originally Posted by Balr14 View Post
Usually the belt flipping like that means it got loose. Belt quality of these clones is not good and they stretch easily. Check to see if the Wasp belt is compatible. Or, try a LHS for an Align 250 belt. I hate replacing belts. Especially on a 250. While you are at it, check the tail boom tube. A Wasp boom might fit and I believe it's a lot stronger.
You are probably right, it was loose. It had been a few flights since
I checked it... makes perfect sense.

Wasp boom looks like a perfect match, but the belt is way too long,
so I'm down for a spell.

I have plenty of work to do anyway.
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Old Dec 02, 2012, 05:45 PM
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Align's tail booms work great. There is a company that makes Kevlar belts. I tried some of them, they last a little longer, but they break too. Now I use the cheap belts, but I keep a close eye on them. I crashed both of my 250s today, I think I fly those things too hotly because they are so fun to fly. Unlike my 450s which I fly very conservatively because they make a lot of noise when they crash.
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Old Dec 03, 2012, 08:14 AM
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Align's tail booms work great. There is a company that makes Kevlar belts. I tried some of them, they last a little longer, but they break too. Now I use the cheap belts, but I keep a close eye on them. I crashed both of my 250s today, I think I fly those things too hotly because they are so fun to fly. Unlike my 450s which I fly very conservatively because they make a lot of noise when they crash.
Sorry to hear about the crashes. But @ least it was doing slammin' 3D eh?
I could live with the occasional crash if I could just get the stones to make the heli do something other than hover. I will when I'm in total control, but I'm not there yet.
Still having fun, even just hovering, so that's what matters.
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