HK-500GT 3D Helicopter Build Thread - Page 567 - RC Groups
Thread Tools
Dec 05, 2012, 10:58 AM
Zippy Puffer
2Doggs's Avatar
Quote:
Originally Posted by Atomic Skull
The thing is though, the tail is perfect without the governor. It's only with the governor enabled that I get problems.
Some governor modes are fierce - like the Turnigy Superbrain, with no gain adjustments available. So there's really tight control of HS, but with frequent changes in motor power, and that can cause a tail twitch. I've seen that on my 450's, but only when there's also been something up with the tail, most of the time a sloppy linkage. I'm having no problems at the moment with a Tarot TL1200-02 forked slider mechanism, which has taken out at least 50% of the slop.

Having a tail swing on pitch pumps seems more like a gyro deficiency though. It's a pity all gyros can't have the collective and cyclic - tail compensation feature used on the ZYX and CX.

I don't suppose you're running a really low HS? That would weaken the tail, and make any tail problems worse.
Sign up now
to remove ads between posts
Dec 05, 2012, 01:46 PM
Registered User
Quote:
Originally Posted by eagle777
Also 500L motor comes down pretty hot. I thought that was normal, the guy I fly with flies pretty soft 3D, but his 600 L type motor is really warm after a flight.

Thanks mhills, that sounds like my problem. Get rid of the gov, go 12T and I should get a few 2600mah packs also.
Yeah agree with mhills...gearing down and setting your throttle curve for a max 2700 head speed should get you in the right direction. Also in the future look into running the smaller 2600 6s packs for less weight and better performance.
Dec 05, 2012, 05:10 PM
Registered User
Atomic Skull's Avatar
Quote:
Originally Posted by 2Doggs
Some governor modes are fierce - like the Turnigy Superbrain, with no gain adjustments available. So there's really tight control of HS, but with frequent changes in motor power, and that can cause a tail twitch. I've seen that on my 450's, but only when there's also been something up with the tail, most of the time a sloppy linkage. I'm having no problems at the moment with a Tarot TL1200-02 forked slider mechanism, which has taken out at least 50% of the slop.

Having a tail swing on pitch pumps seems more like a gyro deficiency though. It's a pity all gyros can't have the collective and cyclic - tail compensation feature used on the ZYX and CX.
The Robird G31 has cyclic and collective torque compensation.

This problem is only present with the governor enabled. With the governor off the tail stays glued in place during hard climbs and pitch pumps. Likewise the gyro holds the tail like a robot during flips, you can flip with no yaw correction at all and it stays perfectly straight through the entire flip.

Quote:
Originally Posted by 2Doggs
I don't suppose you're running a really low HS? That would weaken the tail, and make any tail problems worse.
I run at around 2400 RPM. I know some people here would consider that low but the manual recommends 2600 maximum and 2400 is still well above the 2100 recommended for sport flying.

Quote:
Originally Posted by 2Doggs
So there's really tight control of HS, but with frequent changes in motor power, and that can cause a tail twitch. I've seen that on my 450's, but only when there's also been something up with the tail, most of the time a sloppy linkage. I'm having no problems at the moment with a Tarot TL1200-02 forked slider mechanism, which has taken out at least 50% of the slop.
I would estimate that with the 500 Pro bellcrank, slider and tail grips installed the slop on the tail blades is less than 1mm.
Last edited by Atomic Skull; Dec 05, 2012 at 05:41 PM.
Dec 05, 2012, 06:16 PM
Just fly
evltoy's Avatar

Burnt out ESC


After my first real failure on the 500 i though I'll post up some pics of the burnt out Hobbyking SS70/80A ESC

For the $20 I spent I did get just over 150 flights. I guess you get what you pay for
Dec 05, 2012, 06:26 PM
as much as I can
beenflying's Avatar
You're lucky. The YEP 80A ESC's are still in stock at HK. Get one of those and a program card. They're the best ESC for the money, ATM.
http://www.hobbyking.com/hobbyking/s...ontroller.html
Dec 05, 2012, 06:32 PM
Just fly
evltoy's Avatar
Will do beenflying

I will be getting few YEP for the 500's, 550 and thinking to add one to the 450 too.

As I have a budget per month for this hobby I have to wait till next week or so to buy. I just hope they are still around by then.

On the topic of the YEP.. I did read somewhere that people are putting heat sinks on them. Is this a must?
Dec 05, 2012, 06:41 PM
Zippy Puffer
2Doggs's Avatar
Quote:
Originally Posted by evltoy
After my first real failure on the 500 i though I'll post up some pics of the burnt out Hobbyking SS70/80A ESC

For the $20 I spent I did get just over 150 flights. I guess you get what you pay for
Was the solder bad on that centre motor lead? Looks like heat there and on one side of the pcb.
Dec 05, 2012, 06:44 PM
Just fly
evltoy's Avatar
Solder was fine. The fire/heat must have been very hot as it desoldered a few components.

I just hope it was a faulty component on the ESC side and nothing to do with the motor. last thing i want happening is that I put a new ESC in and it fries from the motor
Dec 05, 2012, 06:57 PM
as much as I can
beenflying's Avatar
Quote:
Originally Posted by evltoy
Will do beenflying

I will be getting few YEP for the 500's, 550 and thinking to add one to the 450 too.

As I have a budget per month for this hobby I have to wait till next week or so to buy. I just hope they are still around by then.

On the topic of the YEP.. I did read somewhere that people are putting heat sinks on them. Is this a must?
That's interesting. My understanding is they run really cool. Certainly the 80A one in my 500 does. But perhaps that's because it's way more amps than it really needs.

Just watch out with the 45A one. It's big and quite heavy, but in staying that I don't know what else to suggest that's much smaller and still has a soft start, an excellent governor and a 6A BEC.
Last edited by beenflying; Dec 05, 2012 at 07:03 PM.
Dec 05, 2012, 07:06 PM
as much as I can
beenflying's Avatar
Also if HobbyKing run out of the YEP ESC's, I can vouch for www.hobbydream.com, who have a good stock of the himodel ones. The even have a very good price on the 100A version.
http://www.hobbydream.com/index.php?...ort=20a&page=2

Himodel charge you the Paypal interest and Hobby Dream don't.
Dec 05, 2012, 07:19 PM
Just fly
evltoy's Avatar
will the program card for the YEP from HK work with the himodel?

thanks for the heads up on the 45A YEP. I may rethink and get another plush.
Dec 05, 2012, 07:22 PM
Need More PURPLE !!
Dejavu*Xion's Avatar
Quote:
Originally Posted by Atomic Skull
I tried the 540 Sport version and I didn't like them, the shoulder bolts that hold the CF skids to the metal brackets are designed to have slop and allow the skids to move.. I'd rather have the Gorilla gear as they will save your helicopter in a hard landing.

Received the c.f 450 landing gear in today. I like it. ( change is good) I did not have a problem with any slop in the shoulder bolts. They came with some foam tape. just placed a bit in between c.f and metal shoulder. And its a very tight fit.
Whats really nice about these landing skids it puts the tail fin up off the ground. Would be pretty hard to do any tail scrapes now. This 450 will look even better once i get some all black c.f blades & tail boom to match it all up.
Like it so much I'll buy a set for the 500 as well.
Dec 05, 2012, 07:22 PM
Registered User
Atomic Skull's Avatar
Cheap EFL and Pro canopies.

http://www.flying-hobby.com/shop/can...-c-96_179.html

No predrilled holes so you can just drill the upper holes for use on a 500 ESP (hook it under the skids, don't use the clip or it will crack it)

After flying the Pro canopy I got from HK I can't go back to the standard canopy anymore because it make the helicopter looks undersized to me.

EDIT: Blah their shipping is ridiculous.

EDIT: But not so bad if you order several.
Last edited by Atomic Skull; Dec 05, 2012 at 08:16 PM.
Dec 05, 2012, 07:30 PM
Need More PURPLE !!
Dejavu*Xion's Avatar
Quote:
Originally Posted by evltoy
After my first real failure on the 500 i though I'll post up some pics of the burnt out Hobby king SS70/80A ESC

For the $20 I spent I did get just over 150 flights. I guess you get what you pay for
I tried one of those Hk esc one time for a 500 i had . The slow start was terrible. Then had my fill of aligns 70amp esc. The damn capacitors would always vibrate off.
Very happy with the hobbywing esc's. Great slow start and capacitors are shrink wrapped.
Dec 05, 2012, 07:35 PM
Registered User
mhills51's Avatar
You can also get the Himodel speedcontrols from hobbydream. That is where I got my programmer and the 150A.

Sorry brain fart! I didn't see you already listed them.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
I got some Fan Fold what to build thread part II started by emoone!!! Don Sims Foamies (Kits) 188 Jan 23, 2010 08:28 PM
Mountain Models Tantrum Partial Build Thread.. Tram Parkflyers 142 Apr 03, 2004 10:41 PM
My Bobolink Build Thread (very Colibri like) Jim Poor Hand Launch 65 Dec 10, 2003 04:48 PM
Laird Super Solution Build Thread! boomerace Parkflyers 178 Oct 29, 2003 07:20 PM
Switchback re-build thread (or What the $#*& was that!) Biggles604 Parkflyers 17 Jun 23, 2003 09:34 PM