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Bixler 2 - In need of first build help [ARF]

#1
Hey,
So i bought a few parts off of HK and i'm waiting for them to ship in now but I have been reading some reviews about the "H-KING 20A Fixed Wing Brushless Speed Controller [ESC]" and how they decide to heat up really badly in the Bixler 2 and can lead to fires if not properly cooled. I would like some advice on how best to approach this whether I switch to a high amp rating on a different ESC such as 30A instead of 20A or cooling methods such as putting it outside the aircraft.

My build currently consists of:

"H-KING 20A Fixed Wing Brushless Speed Controller"
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=14871

"Hobby King 2.4Ghz 6Ch Tx & Rx V2 (Mode 2)"
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9042

"HobbyKing 50watt 5A X-Charger/Balancer"
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=14857

"Turnigy 2200mAh 3S 20C Lipo Pack"
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8932

"Hobbyking Bixler 2 EPO 1500mm w/ Brushless Motor, Servos and Optional Flaps (ARF)"
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=24474

Does anyone have an insight on whether i would need to put in a 30A ESC such as:

http://www.hobbyking.com/hobbyking/store/__25882__Turnigy_AE_30A_Brushless_ESC_AUS_Warehouse_.html

OR

http://www.hobbyking.com/hobbyking/store/__27884__Hobby_King_30A_ESC_3A_UBEC_AUS_Warehouse_.html

Many Thanks,
Jordan
 

Carbon

Elemental Madness
#2
I would pick up a Turnigy plush 30amp. They stay so cool and only cost $11! I use it now in my bixler one and can run it on full throttle for 20min or hard flying it is barely warm to the touch!
This is the one: http://www.hobbyking.com/hobbyking/store/__2164__TURNIGY_Plush_30amp_Speed_Controller.html
Just awesome.
If you don't want to buy a new one try this: take off the heat shrink and cut a hole in the side of the fusealage of you plane that just fits the heatsink. Then put it in place and hot glue the whole thing down.
 
#3
I would pick up a Turnigy plush 30amp. They stay so cool and only cost $11! I use it now in my bixler one and can run it on full throttle for 20min or hard flying it is barely warm to the touch!
This is the one: http://www.hobbyking.com/hobbyking/store/__2164__TURNIGY_Plush_30amp_Speed_Controller.html
Just awesome.
If you don't want to buy a new one try this: take off the heat shrink and cut a hole in the side of the fusealage of you plane that just fits the heatsink. Then put it in place and hot glue the whole thing down.
Okay awesome, thanks for the quick reply, I'll invest in the new ESC but probably do what you said with the other ESC now until it arrives :p

Thanks Heaps
 

lobstermash

Propaganda machine
Mentor
#5
I had one of those fixed wing ESCs. It didn't have a heatsink. It worked fine for me on my Bixler, but when a mate bought it off me he stuck an overcharged 3s into it and it caught fire. The plane survived, but there wasn't much of the ESC left.
 
#6
I am looking at purchasing a very similar setup, if I purchased exactly all that, is that all that I need? Do I need any other wires or tools? Like I literally purchased only that stuff.

Cheers heaps :)
 
#7
Although I don't own a Bix2 I have had 2 Sky Surfers and 4 original Bixlers and all of them I ran with RCTimer 30a esc(s). This hot stock esc issue has plagued all the Bixler models from HK since the beginning. Most guys either cut some ventilation holes, mount the esc on the side outside cockpit or as I do mount them on the "hump" on top of the wing. Looking at the specs for the Bix2 i see a 2620 motor but my guess its one of those little hextronik bell housing jobs, which in my humble opinion is a tad underpowered for such a large frame. This ultimately leads guys to fly top of the throttle range and if you add optional flaps to the equation that little 20a esc is working pretty hard with no air flow....leading to poofs and mangled foam. If you end of falling in love with your new Bix you will at some point look into ways to upgrade your motor so i would highly suggest you go with a 30a esc, at the very least to give you room to grow for future endeavors. The pic attached is of a old build with a 40a esc (don't ask lol)and no the blue tape was just for picture, you will need two sided tape. IMAG0289.jpg