Espritmodel.com Telemetry Radio
Reply
Thread Tools
Old Jan 12, 2013, 07:53 PM
efx
Rookie in training, heads up
efx's Avatar
Los Angeles
Joined Mar 2010
3,198 Posts
Did I just see two guys squeeze into this tiny helicopter?
CH-7 Kompress on flight school (7 min 8 sec)
efx is offline Find More Posts by efx
RCG Plus Member
Sign up now
to remove ads between posts
Old Jan 12, 2013, 08:20 PM
Registered User
United States, SC, Irmo
Joined Sep 2011
4,525 Posts
Wow, definitely the "250" of real helicopters. Looks scary, but you guys would all give your left *** to fly it just once. My wife got me a discovery airplane flight for Christmas, I have to admit I am a bit scared of it... Some old 30 year old beater in the air...
shahram72 is offline Find More Posts by shahram72
Reply With Quote
Old Jan 12, 2013, 09:43 PM
No Longer Active
pitchp's Avatar
Australia, VIC, Melbourne
Joined Aug 2010
6,627 Posts
Quote:
Originally Posted by efx View Post
I don't like watching the lower resolution videos much any more.
I know what you mean!!
pitchp is offline Find More Posts by pitchp
Reply With Quote
Old Jan 12, 2013, 09:51 PM
No Longer Active
pitchp's Avatar
Australia, VIC, Melbourne
Joined Aug 2010
6,627 Posts
Quote:
Originally Posted by efx View Post
Did I just see two guys squeeze into this tiny helicopter?
http://www.youtube.com/watch?v=Cw1Cy...ture=endscreen
it flies just like our helis! except the controls are inside, that is kool!
pitchp is offline Find More Posts by pitchp
Reply With Quote
Old Jan 14, 2013, 09:41 AM
Registered User
helivsFMX's Avatar
Arizona USA
Joined Mar 2009
1,030 Posts
Hey Guys. Im wondering if anybody has 2 cents to share...

I currently fly a trex500 and an MCPX. Im too scared to beat on the 500, and the MCPX tail blows out way too easily when inverted, so I need a 3D trainer. Id like to be able to fly in a soccer field or baseball diamond since thats about all I have close by, so Im thinking of trying a 250. So my question is how is the HK250GT these days? Does it actually fly? Ive had HORRIBLE experiences with clones in the past to the point where I just ditch them. Last one I had was an exi450pro and the tail shaft bent in mid flight and caused me to crash. Stupid things like that would ALWAYS happen when I had clones. So once I bought a trex, I haven't had a single problem since. I dont really want to pay for a trex for a trainer, but I REALLY dont want to deal with all the issues of a clone. So have they made these things any better these days? Can you actually fly a clone out of the box now without upgrading all the shafts/bearings/various parts etc? Id like to know that worst case to replace an airframe is only a $40 experience (vs $65 for blades alone on my 500).

So if anyone would like to share their 2 cents, Id be very appreciative.
helivsFMX is offline Find More Posts by helivsFMX
Reply With Quote
Old Jan 14, 2013, 09:58 AM
Team Mulikow 3D
Oxfordshire, UK
Joined Jan 2007
4,033 Posts
Quote:
Originally Posted by helivsFMX View Post
Can you actually fly a clone out of the box now without upgrading all the shafts/bearings/various parts etc? Id like to know that worst case to replace an airframe is only a $40 experience (vs $65 for blades alone on my 500).

So if anyone would like to share their 2 cents, Id be very appreciative.
You can - but not an HK250. My suggestion would be to go for a Tarot 450. The HK250s still have some challenges around the shafts / belts / belt drive and tail drive pulleys coming loose. They can be made to fly great - but if you hated the experience last time you will still hate it.

What has emerged is a hierarchy of the quality of clones has emerged, with some of the "cloners" actually improving the breed with better ideas than the original (e.g. Tarot has brought out different FBL heads and tail boxes that are very innovative and argueably better than the Trex equivalents).

IMHO opinion the current ranking for quality is (for 450s)
Align
very closely followed by Tarot
very closely followed by ALZRC
Copterx
then a long way to ....
HK / Skya / ebay no-name clones

There is still some rubbish out there, but new entrants such as RCWIN, VCTRC seem to have some nice quality kit coming out (I haven't tried it personally yet).

The only other thing that I would add is that there are some very good low-end FBL controllers out now, but personally I would stay clear of cheap servos and ESCs still

Mike
MikeHRC is online now Find More Posts by MikeHRC
Reply With Quote
Old Jan 14, 2013, 10:09 AM
Registered User
United States, SC, Irmo
Joined Sep 2011
4,525 Posts
I've been looking to build one just to putt around and I decided that I cannot risk it blowing up so I am going to use Align feathering shaft and maybe the belt. My time is worth more than the few bucks. My stock swash was defective and had lots of resistance but hobbyking gave me a credit for that part. Now I just need to figure out if I can use my ga 250 gyro on it or if I have to buy something else.
shahram72 is offline Find More Posts by shahram72
Reply With Quote
Old Jan 14, 2013, 10:10 AM
Registered User
helivsFMX's Avatar
Arizona USA
Joined Mar 2009
1,030 Posts
Mike, that was worth far more than 2 cents! Thanks very much for the response! I guess Im not surprised to hear that clones are still crap out of the box, but I was hopefull that they would have improved on it in the few years I have had between my 450 clones and my genuine align. Sounds like I'll be best off buying a used trex250se with align electronics. I can do that for $200ish so its only about 2X the price of a clone. Not the end of the world. Otherwise the 300x is still a consideration...

Again, thanks for the help! It is much appreciated!
helivsFMX is offline Find More Posts by helivsFMX
Reply With Quote
Old Jan 14, 2013, 10:39 AM
Low rates are for wimps
bwoollia's Avatar
United States, CO, Colorado Springs
Joined May 2008
3,250 Posts
Quote:
Originally Posted by shahram72 View Post
I've been looking to build one just to putt around and I decided that I cannot risk it blowing up so I am going to use Align feathering shaft and maybe the belt. My time is worth more than the few bucks. My stock swash was defective and had lots of resistance but hobbyking gave me a credit for that part. Now I just need to figure out if I can use my ga 250 gyro on it or if I have to buy something else.
Good idea upgrading those two parts. As far as the GA-250 goes, I would recommend something (almost anything) else. I could not get mine to work well, and it often developed a wag of death. If you like to tinker, there is a community firmware that has been developed and you can re-flash it, but don't use it stock on a 250.
bwoollia is offline Find More Posts by bwoollia
RCG Plus Member
Old Jan 14, 2013, 11:10 AM
Registered User
United States, SC, Irmo
Joined Sep 2011
4,525 Posts
What else is small that I can use? Isn't there a tiny hobby mate? I have a used Futaba gy401 on the way, but it's huge on the 250. I also have a spare hk401b gyro, but so far I can't get the other one I have to work on my 450.
shahram72 is offline Find More Posts by shahram72
Reply With Quote
Old Jan 14, 2013, 11:37 AM
Low rates are for wimps
bwoollia's Avatar
United States, CO, Colorado Springs
Joined May 2008
3,250 Posts
Quote:
Originally Posted by shahram72 View Post
What else is small that I can use? Isn't there a tiny hobby mate? I have a used Futaba gy401 on the way, but it's huge on the 250. I also have a spare hk401b gyro, but so far I can't get the other one I have to work on my 450.
Use the Futaba if you can. I used an HK401B on mine for a while with good success - the trick is a fair amount of delay (I would imagine the Futaba would be the same thing). Unfortunately the quality of the HK401B dropped considerably after the Japan Tsunami, apparently some of the key components were manufactured in Japan and the parts sourced afterwards were not as good.

I mounted my HK401B inverted on the tray, it wasn't too bad that way. The key to building the 250 is accepting the fact that components are going to stick out everywhere!
bwoollia is offline Find More Posts by bwoollia
RCG Plus Member
Old Jan 14, 2013, 12:57 PM
Registered User
United States, SC, Irmo
Joined Sep 2011
4,525 Posts
Wow, an HK401B recommended over the GA-250. Is that gyro good for anything? Maybe a 450? Honestly, I'm not looking forward to programming it with the sticks. Can see that getting messed up. And I see the yellow kevlar belt at Infinity hobby, and they appear to have genuine Align parts too. Wonder if I can order the feathering shafts from there as well. Would rather order from amainhobbies, but they only have stock belts.
shahram72 is offline Find More Posts by shahram72
Reply With Quote
Old Jan 14, 2013, 01:05 PM
Low rates are for wimps
bwoollia's Avatar
United States, CO, Colorado Springs
Joined May 2008
3,250 Posts
Quote:
Originally Posted by shahram72 View Post
Wow, an HK401B recommended over the GA-250. Is that gyro good for anything? Maybe a 450?
It would probably work "well" in a 450. I've heard of acceptable results in a 500 for sure. I just think that the 250's fussy tail is too much for the GA250.
bwoollia is offline Find More Posts by bwoollia
RCG Plus Member
Old Jan 14, 2013, 07:36 PM
Registered User
Joined May 2011
417 Posts
The Tarot GY550 gyro works great for me. It's small and it handles the 250's high vibration, plus it's only $20.00.
mugen 1 is offline Find More Posts by mugen 1
Reply With Quote
Old Jan 14, 2013, 07:49 PM
Registered User
United States, SC, Irmo
Joined Sep 2011
4,525 Posts
I like it! Nice and small and cheap! So I still need to know if anyone knows about the Align parts from Infinity Hobby before I order the kevlar belt and Align feathering shafts from them. Hopefull that should be all I need to get a reliable bird. I really hate to waste and not use stuff, but I lose so much time to faulty stuff, sounds like this is cheap insurance. I don't mind upgrading the belt or shafts to align, but once you start having to upgrade the head and tail, you're wasting your time with clones.
shahram72 is offline Find More Posts by shahram72
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Build Log Nitroplanes Lander 70mm F9F Panther EDF Build Log and Review The Don Foamy EDFs 38 Jun 03, 2014 10:09 PM
Discussion Official HeliMax AXE CP Thread with pics post em here!!?.. darklyte24 Micro Helis 10603 Mar 27, 2014 06:49 PM
GWS Spitfire Build thread (with glassing tutorial) David Winter GWS (Grand Wing Servo) 156 Sep 14, 2009 05:42 AM
Discussion Build log or review for BulleT? raycsr Electric Sailplanes 3 Jan 30, 2009 01:03 PM
looking for build thread with upclose photos HIGHFLYER99 Foamies (Kits) 13 May 21, 2005 08:54 PM