Knuckle H-Quad

by FliteTest | October 8, 2013 | (27) Posted in Reviews

The new Knuckle Hub Kit is the latest installment of Rotor Bone multirotor components designed specifically for creating unique body configuration.

Similar to the AnyCopter where components can be modified and assembled easily, but the Knuckle Hub kit also gives you the ability to build up and create a much wider variety of airframe configurations.

The multirotors build using the Knuckle Hubs use the standard FT 13370 Straight Motor Mount.

The Knuckle Hub offers room for holding things like the KK2 board and other FPV gear.

Knuckle H-Quad 370 Kit is available in our online store.

The Knuckle H-Quad uses the standard Straight Motor Mount-13-370

The "Blue Wonder" 2712-12 24G - Standard available from

Josh used the Knuckle components to make a T-Copter!  The Hub Kit also works with David's camera mount available here!

The H-Quads that we created were all painted matte black.

The small multirotors are designed to be full flying multirotors that you can learn on customize crash and rebuild. 

The Knuckle Hub Kits are available in our online store, but for those of you who would like to make your own, here are the free PDF templates. Download here.

Thanks for all of your support and be sure to upload your Knuckle Hub Multirotor designs in the forum HERE!  



R3dD3vil on October 8, 2013
Dudes I LOVE YOU for this, my quad will love the upgrade!
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R3dD3vil on February 22, 2014
My Knuckle H-Quad hud laser cut from plexiglas
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ipetepete on October 8, 2013
Do you actually get decent lift with the tri carrying the GP?
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timmerflyer on October 8, 2013
I spotted a gopro hero 3+ how do you guys like it? Any improvements in the live feed?
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liveyourdreamsRC on October 9, 2013
I would also like to know about the hero 3+...
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Johan on October 8, 2013
Yeah! I was right when you asked "What's Chad working on?"

My answer "Ah, I see an "H-bones" kit coming !!!!!", Ok, got the name wrong :-(

Great video guys, looked like you were having a ball :-)

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checker on October 8, 2013
Ok two things ( A ) may I suggest FT-Knuckle bones and #2 you guys are starting to get permanent circles around your eyes from the fat sharks LOL
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Sharpshooter441 on October 8, 2013
Hey flitetest!! Love your new design :), I was wondering if you could do a fast tip on how you mount your cameras to stop vibrations? Thanks heaps regards Alex.
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RCNewb on October 10, 2013
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Sharpshooter441 on October 10, 2013
Thanks heaps RCNewb, I may have missed this episode :)
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Johan on October 8, 2013
Happy to see I'm not alone ..
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dsinclair on October 9, 2013
Would be great to see you guys do a show on basic quad flying techniques. How to fly circles, figure 8's etc
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robli67 on October 9, 2013
I was just thinking that same thing. How do I learn to fly on of these? It would be great to see you dive into a intro to flying multi-rotors and a good starting point. I think I just found a hobby to get my son interested in. Great job.

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liveyourdreamsRC on October 9, 2013
Can't wait to see more with this quad, it looks like fun!
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MidwestRob on October 9, 2013
Awesome video guys! I like how everyone customized their own Knuckle frames. The orange one was my favorite.

BTW, the new logo tees look great. Have you considered selling hoodies? It's been getting a bit chilly here lately.

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Sirglider on October 9, 2013
Honestly I am a little bit disappointed in this episode as H-quad is not new at all even if you have made a new frame build kit. I really prefered the anybody kit which was more innovative. Optimzed frames like the Tricopter of David make for me sense and also innovative ones like the bat bones or so.
I think I'm used to too good quality from FT episodes to become quickly disappointed by new just high quality ones...
Keep up the good work!
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skelator on October 9, 2013
can we also have DXF files for this? if yes would be awsome as I can ask a friend of mine to cut set for me
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R3dD3vil on October 10, 2013
I made the PDF to DXF give me and mail to and will share
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rifted on October 9, 2013
Hey Guys great Knuckle Hub Kit!!! love the video.
Comment # 1: WOW lol
Comment # 2: Please make Chad do the built video, it will be great to see him on camera and with his brilliant idea of the Knuckle Hub Kit!
Comment # 3: It is so fun to see you all out there having fun!
Keep the great ideas coming and thanks so much!
PS: now there will be no more KK2.0 for the rest of the year... bummer... LOL
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hobosbazzoka on October 9, 2013
Awesome but can someone tell me what motor Davids using on the t-copter
Thanks Ryan
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RCNewb on October 10, 2013
The black Knuckle looked really sharp, though the orange/black one David built just "pops".
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sailorJohn on October 11, 2013
The scenes of a bunch of guys having fun flying FPV quads is the first time I've had any interest in FPV or investing in Quads . Guess I'll dig out the MQX I got for Christmas and start practicing. Might be good for finding lost planes in the woods. Boy this is hard ,wake up left hand.
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amtpdb1 on October 11, 2013
I still would like to see a total breakdown of all costs involved with a quad.
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king296 on October 23, 2013
I love what you guys are doing will you post the specs on that sweet T copter in the pics I'll order a set as soon as I can
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Nicolas on October 27, 2013
I am wondering what kind of color you guys used to paint the arms of the quads. could you please tell me, it would be awesome.
Keep up the awesome work!! ;)

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Hasi on December 15, 2013
Europian version:
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schubrakete on January 21, 2014
I love the Knuckle.
Did also paint it black and used black screws. It just looks awesome.

Do you think there will be a CFK edition? I would love that.

What are the 45° sits for? Would be great to have them parallel to the short side so you can pull velcros through for battary mouting.

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Yodalolee on February 2, 2014
Hi All

I love the simplicity. It's great. I very much prefer tricopter than quads, what lengths are the booms on Josh's tricopter /T copter version? How about the possibility of a v copter from this frame?
Love what you're doing,

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DOOM on May 31, 2014
Hey Flitetest!

thanks for the plans!!! I just finished building mine and it is awesome! I built it with a KK2.1 HC Board. Just dialed in all the PI Stuff and did the maiden. AWESOME!!!
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Nick.yates on April 30, 2015
Flite test, when will the knuckle come on sale, i love the look of them, also could you put naza mv2 on it and a gimble?
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Knuckle H-Quad