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E-flite UMX AS3Xtra with AS3X 425mm (16.8") Wingspan - BNF

Brand: E-flite /

This product is discontinued

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Regular price 99.99 $9999 Free Shipping*
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16.8" Wingspan E-flite UMX AS3Xtra 3D Aerobatic Plane with AS3X Flight Stabilization Technology - Bind-N-Fly (BNF) - EFLU5150

The E-flite UMX™ AS3Xtra takes Ultra Micro eXtreme to the next level. Constructed of laser-cut flat foam with carbon reinforcement and micro-thin film, this aircraft was specifically engineered to optimize a super-low wing loading, strength and durability plus AS3X technology to provide outstanding 3D performance in tight flight spaces. Based on the ground breaking original UMX Extra 300 3D, the addition of AS3X technology makes it possible to be even more successful whether it’s performing the simplest loop or the latest extreme 3D moves. Even more appealing is that now AS3X technology offers flight mode flexibility so you can choose the level of stability performance you need instantly.

The UMX AS3Xtra is the perfect high-performance indoor ultra micro aircraft for the intermediate to advanced pilot. All you need to fly right away is your favorite DSM2/DSMX transmitter with dual rate options, a 25C or 45C 1S 3.7V 150mAh Li-Po battery and a 1S Li-Po charger.


  • AS3X System agility with flight mode flexibility
  • E-flite DSM2/DSMX 6-Ch UM AS3X Receiver/Servos/ESC installed
  • Four-channel, 3D maneuverability and control
  • Spektrum™ 2.3-Gram Performance Linear Long Throw servos installed
  • Ultra-lightweight power system delivers the best possible performance
  • Resilient carbon fiber reinforced, film-covered foam construction
  • Optional SFGs allow you to customize aerobatic capability
  • Ideal for experienced pilots to fly anywhere indoors


  • 16.8" E-flite UMX AS3Xtra 3D Aerobatic Plane - (BNF)
  • E-flite DSM2/DSMX 6-Ch UM AS3X Receiver/Servos/ESC
  • Spektrum™ 2.3-Gram Performance Linear Long Throw servos


  • Minimum 4 Channel DSM2 full range Radio - Click Here for recommendations
  • 1S 3.7V 150mAh Li-Po battery - EFLB1501S25
  • 1S Li-Po battery charger - EFLC1004AC

Product Specifications:

AGE LEVEL : 14 and up
SKILL LEVEL : Intermediate
BUILD TIME : 15 Minutes


16.8in / 426mm


19.8in / 503mm

Flying Weight

1.25oz / 36.5g

CG (Center of Gravity)3.2 in (81mm) forward from the trailing edge of the aileron at the fuselage

Power System

8.5mm x 23mm brushed

Electronic Speed Control


Propeller / EDF

130mm x 70mm - 2-blade propeller


2x 2.3-Gram Performance Linear Long Throw servos (installed)

Landing GearFixed

Required Battery

3.7V 1S 150mAh LiPo battery (required)

Required Radio

Minimum 4 Channel DSM2 full range Radio (required)









Hinge Type


Skill LevelIntermediate
Build Time10 Minutes
Recommended EnvironmentIndoor

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david locklear

Not worth 100 bucks

I bough this plane knowing is was fragile but dang it's very fragile like way to fragile it's not for a beginner that's for sure.the plane flys Alright only way to fly is slow cause it has a horrible tall wag. If I bought another I'd only pay 50 bucks it's not worth the 100.. other then the bad this plane will help with ur fast movements an the hesitation moves...


My second AS3Extra

I've had 2 of these planes. The first one I destroyed out of frustration. I couldn't fly it without damaging the plane. Each time out if I would land wrong or nose it in it would break. So after fixing it over and over again, I finally had enough and literally balled it up and tossed it in the trash. The second plane. I found that it can take a beating if you use thin clear tape on the leading edge of the wings as well as the fuselage. I've been flying this one for 5-6 months and haven't had to do any repairs since. The landing gear (toothpicks) broke off a while back so I just hand launch it now. Still flies just fine without the gear. The gyro is a bit much but if the radio is set up right, it actually works exactly as stated. I only fly outside so there's usually a light breeze or it's calm. No fast breeze or wind. I fly it all the time, every chance I get.



While it is a delicate plane and minor crashes can end up needing repairs, my biggest complaint is the motor. In my opinion it is garbage. The brushed motor lost so much power that it can no longer support hovering, after approx. 10 flights! Delicacy and motor issues out of the is ****** easy to do basic 3d maneuvering (i.e. prop hanging, torque rolls, knife edges, etc) with the AS3X tech! Great plane to step up to 3D flight as a 11ice, as long as you do it indoors. This is not an outdoor bird!!! Too delicate and too small. There are different flight modes for the as3x receiver but I guess you need a 3 position switch flap channel (found that out after purchase). Supposedly you can tame down the gyro response to make it a little more friendly for used input. Flight time is approx. 4 minutes on the little 1 cell batteries. Buy a handful of those and you'll be able to do continuous flying, until the brushed motor wears out that is.


Okay, but flimsy

I have had this plane out only a few times. Flies okay, fun for 3D, but as my UK friends would say, 'she's too flimsy by half!' Won't take much wind at all [expected] but also doesn't seem too happy to be touched. The frame material is much too thin for my taste. If you drop this on its way out of the box say goodbye to straight lines. Same goes for when you glue on the fins - don't squeeze too hard getting them in place or the wing deforms. Definitely not built to last IMHO. Probably better to spend another $50 - $75 for a sturdier plane but I think most of those are out of stock/discontinued.

Dartanain Carlson

****** Gyro good plane

I bought this plane wanting to do some indoor 3d and just some plain fun but I should'be listened to my instincts. I have bought 3 Horizon Hobby Aircraft before this one and each either didn't fly or flew very badly.... The aircraft and power system itself is great but the gyro is totally insane and has a mind of its own that fights the user (at least in my case) I have played and tried to get this thing to work how it is supposed to, but it stilL sends my elevator up and down as well as the throttle oscillates after about 1 min of flight. Now that being said, My rating for MotionRC is 10 stars as they are the best in the business with THE BEST customer support and products. Horizon Hobby has not helped me with any of my products from them and Motion has resolved any problem that I have had, (I didn't contact them with this due to the fact that I already flew it and damaged the aircraft). I would absolutely recommend that you buy from MotionRC but I would not recommend this plane, especially the gyro.

Larrry Cox

Great flyer

I had the previous version without the gyro and it flew very well, so I knew this one would too. Still dialing in the gyro but it still flies very well in all aspects.