Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 550 Class Electric Helicopters


550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


Reply
 
Thread Tools Display Modes
Old 11-25-2010, 02:29 AM   #1
heath9069
Registered Users
 
Posts: 343
 
My HF Map location
Join Date: May 2006
Location: Perth, Western Australia
Default 550E + 12S + Sk720 = Very Happy

Gents,

With some inspiration from TJinguy, I put together a 12S 550E and all I can say is WOW.

I know I'm preaching to the converted but this heli is a dream to fly, especially with a SK720 and a 12S power system.

Here is what I decided to use on this bird:

Castle Creations ICE 80HV ESC
Western Robotics Hercules Super BEC (tapped into main battery)
Skookum 720
Scorpion HK4025-630 motor
2 x Turnigy Nanotech 6S 2650maH lipos
Align DS650 tail servo
Edge 553 FBL blades
Belt conversion for tail

I'm running a 17T pinion and have the HS governed to 2400 which gives me 5 minutes of sport/mild 3D while leaving 20% in the packs.

With the 12S system and motor I haven't been able to bog the head at all. The most amps I have pulled is 86A with a power output of over 3800W. On average its only pulling about 17A.

I'm just waiting for the KDE tail upgrade kit to get rid of the slop in the grips which seems to be a feature of all Align helis for some reason.

I'm really liking the efficiency of a HV setup and will probably convert my 500 over to 8S once my old 6S packs give up the ghost.

If any of you have the urge to try out a 12S system, go for it, you won't regret it all.

Anyway here are some pics of my setup.
Attached Thumbnails
Click image for larger version

Name:	550 1.jpg
Views:	345
Size:	32.9 KB
ID:	191705   Click image for larger version

Name:	500 2.jpg
Views:	394
Size:	51.8 KB
ID:	191706   Click image for larger version

Name:	500 3.jpg
Views:	342
Size:	57.0 KB
ID:	191707   Click image for larger version

Name:	500 4.jpg
Views:	364
Size:	48.7 KB
ID:	191708   Click image for larger version

Name:	500 5.jpg
Views:	336
Size:	29.4 KB
ID:	191709  

Click image for larger version

Name:	500 6.jpg
Views:	323
Size:	44.3 KB
ID:	191710   Click image for larger version

Name:	500 7.jpg
Views:	326
Size:	22.1 KB
ID:	191711   Click image for larger version

Name:	500 8.jpg
Views:	312
Size:	45.4 KB
ID:	191712   Click image for larger version

Name:	500 9.jpg
Views:	296
Size:	52.1 KB
ID:	191713  
__________________
TREX 450 SPORT - 3GX, SAVOX Servos, DS3400G
TREX 500 ESP - SK720, Hyperion HS3026-1600, ICE 75, BEC Pro, EDGE FBL, I2 Swash
TREX 550E/600 12S - SK720, Scorpion HK4025-630, ICE 80HV, WR Super BEC, 603 EDGE FBL, I2 Swash
heath9069 is offline        Reply With Quote
Old 11-25-2010, 01:42 PM   #2
phuy9450
Registered Users
 

Join Date: Aug 2009
Location: dallas
Default

nice, i want to do the same but i only have 2 3000mah 6s, could they fit under the stock canopy ?
phuy9450 is offline        Reply With Quote
Old 11-25-2010, 02:48 PM   #3
Nko15
Registered Users
 
Posts: 3,485
 

Join Date: Jan 2010
Location: Hoorn (NL)
Default

Wont fit. too big. max you can sqeeze under it is 2x 2650mAh 6S 30C(normal blue turnigy's)
Nko15 is offline        Reply With Quote
Old 11-25-2010, 03:15 PM   #4
kidphc
Registered Users
 
Posts: 505
 
My HF Map location
Join Date: Aug 2007
Location: Rockville, MD
Default

I'm piecing together almost the identical setup. How's it fly at a head speed of 2200?

I'm in about of trouble since I have the blue turnigy 3000. Wonder how tight of a fit they are.

Sent from my DROIDX using Tapatalk
__________________
MSR,McpX 250SE, 450SE (pro now) V2 3g,12s Trex 550e
Sold: Trex 500 3g, 600n
kidphc is offline        Reply With Quote
Old 11-25-2010, 04:19 PM   #5
Nko15
Registered Users
 
Posts: 3,485
 

Join Date: Jan 2010
Location: Hoorn (NL)
Default

3000 normal turnigy's wont fit.

with 600 blades @ 2200 rpm its a canon, tictocability is insane, i fly 5.5 minutes 3d on 2000 rpm. with 600's.

On the 520 blades, the 2200 is a bit low.
Nko15 is offline        Reply With Quote
Old 11-25-2010, 11:53 PM   #6
heath9069
Registered Users
 
Posts: 343
Thread Starter Thread Starter
 
My HF Map location
Join Date: May 2006
Location: Perth, Western Australia
Default

+1 I have normal flight mode set at 2200 which is a little sluggish on 550 blades, 2400 seems to be the best for power and flight time for me. Some guys are running 2600 but it cuts the flight time with 550 blades.
__________________
TREX 450 SPORT - 3GX, SAVOX Servos, DS3400G
TREX 500 ESP - SK720, Hyperion HS3026-1600, ICE 75, BEC Pro, EDGE FBL, I2 Swash
TREX 550E/600 12S - SK720, Scorpion HK4025-630, ICE 80HV, WR Super BEC, 603 EDGE FBL, I2 Swash
heath9069 is offline        Reply With Quote
Old 01-03-2011, 01:43 AM   #7
jamin_00
Registered Users
 
Posts: 4,408
 
My HF Map location
Join Date: Aug 2008
Location: Essex, UK
Default

Now this will be an animal you must get a vid

I have a feeling you would get nano tech 3000 under the canopy as they very close in size to the normal 2650 turnigys
__________________
Sponsored by
Optipower

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
jamin_00 is offline        Reply With Quote
Old 01-03-2011, 04:02 AM   #8
Nko15
Registered Users
 
Posts: 3,485
 

Join Date: Jan 2010
Location: Hoorn (NL)
Default

I can get 75x42x140 under the canopy.. anything more and you wont get the canopy on anymore...
Nko15 is offline        Reply With Quote
Old 01-04-2011, 12:43 AM   #9
Blades345
Registered Users
 
Posts: 3,143
 

Join Date: Feb 2009
Location: Florida
Default

Sounds awesome,, would love to see the video! I am on 6S at the moment with 553mm blades and love it, so I can only imagine how the 12S setup is.
__________________
When you don't feel like soaring through the wind with a plane,, BEAT IT INTO SUBMISSION WITH A HELI!!!

No helis right now!
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Maybe I'll be back in another year!
Blades345 is offline        Reply With Quote
Old 01-04-2011, 02:34 AM   #10
OnTheSnap
Registered Users
 
Posts: 9,387
 

Join Date: Jan 2009
Location: Santa Clara, Ca
Default

Wow, totally sweet. Can you measure the AUW ready to fly?

Also, it's close to mandatory to use the sk720 power bus. The accelerometers are pretty vibe sensitive. Gyros should be fine. But the power dist is much more rigid withe the bus.
__________________
HeliDirect
iKon
OnTheSnap is offline        Reply With Quote
Old 01-04-2011, 11:14 AM   #11
Nko15
Registered Users
 
Posts: 3,485
 

Join Date: Jan 2010
Location: Hoorn (NL)
Default

Quote:
Originally Posted by OnTheSnap View Post
Wow, totally sweet. Can you measure the AUW ready to fly?
I'm at 3150ish grams with 2 turnigy 2650mah 6s 30c, separate 2s 2200mah for the rx, and 600 conversion(with belt)+603 Edge's on 2000 rpm, power is insane+ 5 minutes of hard 3d.


Nko15 is offline        Reply With Quote
Old 01-04-2011, 11:20 AM   #12
Blades345
Registered Users
 
Posts: 3,143
 

Join Date: Feb 2009
Location: Florida
Default

Nice flying!
__________________
When you don't feel like soaring through the wind with a plane,, BEAT IT INTO SUBMISSION WITH A HELI!!!

No helis right now!
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Maybe I'll be back in another year!
Blades345 is offline        Reply With Quote
Old 01-04-2011, 02:35 PM   #13
RobO
Registered Users
 
Posts: 729
 

Join Date: May 2005
Location: Richland, WA
Default

Looks nice but you have basically built a 600 in a 550 frame.

I'm in the process of doing something similar, same basic components but starting with an HK600GT kit and building a 12S 600. Might weigh a little more but should be able to fit 2 x 3000 and posibbly 2 x 3300 packs. These are the packs I use for my 500.
RobO is offline        Reply With Quote
Old 01-04-2011, 03:53 PM   #14
Nko15
Registered Users
 
Posts: 3,485
 

Join Date: Jan 2010
Location: Hoorn (NL)
Default

Quote:
Originally Posted by RobO View Post
Looks nice but you have basically built a 600 in a 550 frame.

I'm in the process of doing something similar, same basic components but starting with an HK600GT kit and building a 12S 600. Might weigh a little more but should be able to fit 2 x 3000 and posibbly 2 x 3300 packs. These are the packs I use for my 500.

A 600 with 12S is above 3500 grams.. even more with 3000 or 3000+packs Its an old and heavy design. the 550 with 600 blades dances a bit more.

the 550 is a scaled down 600.... tail, head, gears, electronics, everything is the same.
Nko15 is offline        Reply With Quote
Old 01-04-2011, 05:30 PM   #15
tyfries
Registered Users
 

Join Date: Nov 2009
Location: canada
Default

buddy

i dont know why but i just tested my 600 esp out with the Scorpion HK4025-630 motor and 2 x Turnigy Nanotech 6S 2650maH lipos
and in my logging is said im only pulling out 2750 watts?????
why is yours better?
__________________
My heli = 8==+==+==D. Lmao!!

you will become an expert or bankrupt which ever comes first lol
tyfries is offline        Reply With Quote
Old 01-04-2011, 06:23 PM   #16
OnTheSnap
Registered Users
 
Posts: 9,387
 

Join Date: Jan 2009
Location: Santa Clara, Ca
Default

Quote:
Originally Posted by tyfries View Post
buddy

i dont know why but i just tested my 600 esp out with the Scorpion HK4025-630 motor and 2 x Turnigy Nanotech 6S 2650maH lipos
and in my logging is said im only pulling out 2750 watts?????
why is yours better?
ICE controller? You need to tweak the PWM and timing settings. 8KHz, normal timing worked best for me when I ran that setup in my old 600e.
__________________
HeliDirect
iKon
OnTheSnap is offline        Reply With Quote
Old 01-04-2011, 10:22 PM   #17
RobO
Registered Users
 
Posts: 729
 

Join Date: May 2005
Location: Richland, WA
Default

Quote:
Originally Posted by Nko15 View Post
A 600 with 12S is above 3500 grams.. even more with 3000 or 3000+packs Its an old and heavy design. the 550 with 600 blades dances a bit more.

the 550 is a scaled down 600.... tail, head, gears, electronics, everything is the same.
I agree and disagree, the 550 is scaled up 500 and a scaled down 600. Its not an old heavy design, its not as if the designers 4 or 5 years ago didn't know how to make a light airframe.. The 600 airframe is more robust.

The stock 600E motor and ESC are weak in the 600 airframe but rock in the 550, I believe bone stock the 550E is a great balance.

There are tons of people out there now using the 4025-630 on 12S in the 600 and still having problems stripping gears etc.. The thrid bearing block helps. So would a bearing block on the other side of the pinion like the 700E.

No doubt putting that 4025-630 power system in a 550 is going to be a rocket ship! but it may not be a good balance, I'm curious to see. In the Jan 2011 issue of RC Heli there is a guy Mickey Johnson who double stacked his frames (2 sets of carbon fiber frames!) to stiffen it up for a Scorpion motor on 6S! That makes me suspect the stock 550 1.6mm frame may not be up to the task for 12S.

I don't want to sound critical, I admire those that push the limits! It's guys like you that make the hobby better for all of us! I'm just not that cutting edge, I'll sit back and see how it works out.
RobO is offline        Reply With Quote
Old 01-05-2011, 10:22 AM   #18
Nko15
Registered Users
 
Posts: 3,485
 

Join Date: Jan 2010
Location: Hoorn (NL)
Default

Quote:
Originally Posted by tyfries View Post
buddy

i dont know why but i just tested my 600 esp out with the Scorpion HK4025-630 motor and 2 x Turnigy Nanotech 6S 2650maH lipos
and in my logging is said im only pulling out 2750 watts?????
why is yours better?
I have a set nanotechs too. and they SUCK bigtime.... 30c's normal turnigy's do better than 35c nanotechs..

@robo, i meant with heavy, the use of bellcranks, levers etc. all the unneeded stuff...
Nko15 is offline        Reply With Quote
Old 01-05-2011, 10:34 AM   #19
Blades345
Registered Users
 
Posts: 3,143
 

Join Date: Feb 2009
Location: Florida
Default

Quote:
Originally Posted by Nko15 View Post
I have a set nanotechs too. and they SUCK bigtime.... 30c's normal turnigy's do better than 35c nanotechs..

@robo, i meant with heavy, the use of bellcranks, levers etc. all the unneeded stuff...

Really? I heard good things about the nano-tech batteries so far!
__________________
When you don't feel like soaring through the wind with a plane,, BEAT IT INTO SUBMISSION WITH A HELI!!!

No helis right now!
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Maybe I'll be back in another year!
Blades345 is offline        Reply With Quote
Old 01-05-2011, 10:36 AM   #20
Nko15
Registered Users
 
Posts: 3,485
 

Join Date: Jan 2010
Location: Hoorn (NL)
Default

Quote:
Originally Posted by Blades345 View Post
Really? I heard good things about the nano-tech batteries so far!
after about 50 flights they began to lose power. its so bad that i cant even do a nice tictoc with them anymore.. and thats not because of a bad collective management....
Nko15 is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 550 Class Electric Helicopters


550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com