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250 Class Electric Helicopters 250 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 01-26-2011, 08:15 AM   #1041 (permalink)
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Quote:
Originally Posted by Jasmine2501 View Post
Doesn't that black stuff add a ton of extra weight? The exposed wires don't look bad enough for me to weigh down the little thing that much...
Jazzy they do.. I bought a crap load of that meshing, i don't even use them anymore, did you want to buy some? Anyway I've taken mine off, and AUFW lipo included 304grams. I still need them to shed 50grams, my target AUFW 250grams. I'm thinking of replacing my cyclic servos( to the hyperion DS9s), ep200 paddles, and ESC(to the gaui 18A), also I need to trim the wires.






BTW Jazzy, I don't ever recall, your 250 pics?? We'd love to see them.

Just to stir you up a little bit more, I know how much you love my dramatic sims lol

[ame]http://www.youtube.com/watch?v=5ATRbwqW-XU[/ame]
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Old 01-26-2011, 09:21 PM   #1042 (permalink)
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Nice build!
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Old 01-27-2011, 11:41 AM   #1043 (permalink)
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Short clip of some indoor flying.
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Old 01-27-2011, 07:20 PM   #1044 (permalink)
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Short clip of some indoor flying.
Where?
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Old 01-28-2011, 03:01 PM   #1045 (permalink)
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This is nice..

[ame]http://www.youtube.com/watch?v=y5JDmQmDI7U[/ame]
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Old 01-28-2011, 11:53 PM   #1046 (permalink)
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Did I not post these?

EDIT: That's the only one I haven't posted. I will get some more showing the new layout.
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Old 01-29-2011, 04:23 AM   #1047 (permalink)
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cool
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Old 01-29-2011, 04:27 PM   #1048 (permalink)
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cool
Ok here's the layout with the BEC and the Phoenix 25. It is crowded, but it works ok. I could have shortened some of the wires a bit more, but this is safe and reliable, which is all I really care about.
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Old 01-29-2011, 09:50 PM   #1049 (permalink)
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superkool, very nice jazz. thank you
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Old 01-30-2011, 02:11 PM   #1050 (permalink)
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Pitch, you need to fix rudder stick on your radio at last.
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Old 01-30-2011, 03:34 PM   #1051 (permalink)
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AD: Atm I am trying to tune my tail with this new $9 gyro. I think it's getting there....



[ame]http://www.youtube.com/watch?v=92CnbRwNbiA[/ame]

still more tests to be applied, then the ultimate test is ofcourse the tail slide
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Old 01-31-2011, 03:56 PM   #1052 (permalink)
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Default New Fusuno canopy!

This is the new canopy for my 250se. Other recent up-grades are Scorpion 3900KV motor and new tail.
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Old 01-31-2011, 04:39 PM   #1053 (permalink)
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AD: Atm I am trying to tune my tail with this new $9 gyro. I think it's getting there....



http://www.youtube.com/watch?v=92CnbRwNbiA

still more tests to be applied, then the ultimate test is ofcourse the tail slide
you are going to have to raise that a few feet,the heli is getting the backwash from the ground effects
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Old 01-31-2011, 05:13 PM   #1054 (permalink)
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Default T.Rex 250se

WOW !!! tail wag, but nice heli,to fix my wag I set ESC to 5 volts , set gyro to std. servo , gyro delay set red, tail blade 37mm , tail servo ball link " as low as possible if not get a slower servo 1.1sec~ 0.1"
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Old 02-01-2011, 01:49 AM   #1055 (permalink)
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you are going to have to raise that a few feet,the heli is getting the backwash from the ground effects
lol I got the tail wag out of her, I just needed to learn how to use this mems gyro, this is my first mems gyro ($9). I was about to put a cf pushrod, hoping that will fix the tail wag. But it turns out, it's me not knowing how to program this mems. It's getting there. It's a bit windy on this video 30+km/h wind gusts. Tail Gain is 85%. I'm still fine tuning it, until i can get it to piro and to lock on my preference. Tail servo is a cheapie $15 Fusonic Tail servo. Once I have her set up nicely, I'm going to try to make a video of a 250 tail slide. Cross fingers this $9 mems gyro can do it. :o

HS: 4500
2S setup

[ame]http://www.youtube.com/watch?v=spOfPWa6S7c&feature=player_embedded[/ame]










I know the gyro shouldn't be placed there underneath, I'm using the metal plate. Since it's only a $9 MEMS gyro, i'm not really worried about it too much.

I'm a very slow person, but I think I'm getting there. :o
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Old 02-01-2011, 03:35 AM   #1056 (permalink)
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WOW !!! tail wag, but nice heli,to fix my wag I set ESC to 5 volts , set gyro to std. servo , gyro delay set red, tail blade 37mm , tail servo ball link " as low as possible if not get a slower servo 1.1sec~ 0.1"
I have a very cheapie setup, the $15 fusonic tail servo is a bit too fast, you're right there, but I realise that i can program my gyro to it. I just didn't know how until today.. I'm still learning heaps from this gyro, i've been so use to working with piezo gyros. A little more tuning, on the bench, then more tuning in the air, and hopefully a tail slide video.
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Old 02-01-2011, 10:41 AM   #1057 (permalink)
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Dude you need to get it off that tray thingy and just fly it. That is really freakin me out - doesn't look even remotely safe. Put some training balls on there if you're not sure. I've been flying for years and I'm not afraid to use training balls on a new helicopter - but it needs to be IN THE AIR. Or it won't work right.
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Old 02-01-2011, 02:45 PM   #1058 (permalink)
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i've tested many different helis on this bench, all good so far. I use the video for a closer referrence. next test will be in the air. forget the training balls. I'd never recommend those to a 250, my 250 becomes more unstable, with those balls. My next videos will i wont be using my cybershot camera, it will be a cheapie old usb key chain camera. I should buy the latest ones, with better optics. This will take some time. I've got 3 helis with 3 new gyros to configure.
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Old 02-01-2011, 02:51 PM   #1059 (permalink)
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Just watching out for your safety - looks really risky.

Training balls work great on all helicopters, you just have to install them correctly and build them right in the first place....
[ame]http://www.youtube.com/watch?v=OVQPUVoSSak[/ame]
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Old 02-01-2011, 03:31 PM   #1060 (permalink)
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jazz, flight videos of my 250s will be soon. The battle for supremacy

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