UMX™ Yak 54 3D BNF Basic with AS3X®

Review by Gunnar Hovmark, Staff Contributor

Equipment Used:

- All stock


- I have no previous experience of 3D flying, but to me this little plane feels very capable.

- I’ve lost count of how many times I’ve flown it into walls or crashed on the floor, but it still flies.

- Easy to repair.


- The control surface ”hinges” break a bit too easily, on the other hand they’re easy to fix.


3D fun made easy, just like the text on the box says.



None. Just lift the plane out of the box, charge the battery and connect it. The manual has very good instructions for setting up your transmitter. This is not the prettiest looking plane you can find, since it has covering only on the right side and on the upper surfaces. On the other hand the weight is kept to a minimum.



The Yak should fly fine outdoors if it’s not too windy and the weather is warm enough to allow the batteries to work well, but so far I’ve used my Yak indoors only. We fly in a handball court, 40 meters long and 20 meters wide, and there are usually two to four planes in the air at the same time, most of them bigger and heavier than the Yak. I also avoid flying high since I don’t want the plane to get stuck in the ceiling. All this means that I bump into walls or hit the floor quite often, and I’ve also collided with bigger planes several times. I’ve had to replace the propeller once, and I’ve used some Magic Tape and UHU Por to repair the wings and nose, but all in all the Yak has shown that it can take a lot of hard knocks with very little damage. The ”hinges” for all the control surfaces are mostly gone, but they can successfully be replaced with Magic Tape.


The manual suggests three different rate settings for the control surfaces: Low, High and 3D. Don’t use Low indoors, you will not be able to turn tight enough when you need to avoid the wall. High is good for your initial flights, and you will soon want to go on to 3D. With 3D the real fun starts. The AS3X stabilization helps a lot, some of my friends call it cheating. I’m getting pretty good at knife edge and hovering, which are easy with this plane. I can also do various very weird looking turns, and of course normal loops and rolls. To go on from there I’ll have to get advice from the more experienced guys, but I’m sure the Yak can be made to do a lot more.


As default there are three different modes for the AS3X: General Flight, Standard AS3X and Hover Assistance. Standard AS3X is the one that feels most ”natural” to me, but of course you should try all of them. If you like you can also try the additional modes Knife Edge Assist and Torque Roll Assist. I haven’t done that yet, it takes a little programming.



This is an excellent indoor plane if you have a little previous flying experience, and you can use it for learning quite a few 3D stunts. Should work fine outdoors too if the weather is right.


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