E-Flite UMX Ultrix RC Plane, BNF Basic, EFLU6450

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With a unique, all-new design, the E-flite UMX Ultrix gives you a flight experience unlike any other. With its ultra-micro size and durable EPP construction, you can enjoy smooth sport flying or 3D aerobatics in more places than ever before. 

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  • Innovative and unique design capable of smooth sport, aerobatic AND 3D flying
  • Powerful twin brushless motors deliver the power to hover and climb out vertically
  • Differential thrust for yaw control to perform flat spins and other maneuvers
  • Ultra micro size can be flown in more places and smaller spaces
  • Extremely durable yet lightweight, fully-molded EPP airframe
  • Industry-leading Spektrum™ 2.4GHz DSMX® technology
  • Easy to fly with optional-use SAFE® Select flight envelope protection
  • Unmatched stability and locked-in feel of AS3X® technology for smoother flight performance
  • Optional LED light kit/set (sold separately; EFLU6455) for flying at night
  • Fully factory-assembled and ready to fly
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E-Flite UMX Ultrix RC Plane, BNF Basic, EFLU6450

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Product Information

Ultra-micro, ultra-versatile E-flite Ultrix

E-flite's all-new UMX Ultrix RC plane is an ultra-micro, smooth handling, versatile delta wing capable of aerobatic and 3D flying. It features twin brushless motors that provide incredible power to weight ratio that gives you good speed, more than enough power to hover and unlimited vertical performance. Differential thrust adds yaw control and the ability to perform amazing aerobatics like flat spins and harriers while the EPP construction makes the Ultrix the toughest, most durable UMX model on the market! 

E-flite UMX Ultrix RC Plane

Pilots of all skill levels can enjoy the E-flite UMX Ultrix RC plane. It features exclusive AS3X (Artificial Stabilisation – 3-aXis) technology that works behind the scenes to smooth out the effects of turbulence and wind, providing you with stable flight experience that makes it feel like you’re flying a much larger aircraft. Plus, the optional-use SAFE Select technology makes it easy to fly with features like Pitch and Bank Angle limits and Automatic Self-levelling. The Ultrix comes fully factory assembled. All you need to do is add a 1S 500mAh LiPo battery and bind the RC plane to your compatible Spektrum DSMX/DSM2 transmitter. An optional LED light kit (EFLU6455) can be installed for night flying or enhance visibility during the low-light conditions. 

What you need

  • Full-range 5+ channel Spektrum™ DSMX®/DSM2® compatible transmitter
  • 1S 3.7V 500mAh LiPo with JST Connector
  • Compatible LiPo charger


13.5 in (342 mm)
12.6 in (320 mm)
Flying Weight:
2.29 oz (65 g)
(2) Brushless (installed)
Speed Control:
(2) Brushless (installed)
(2) Linear (installed)
Full-range 5+ channel Spektrum DSMX®/DSM2® Compatible (sold separately)
(1) Spektrum™ receiver (installed)
1S 3.7V 500mAh LiPo with JST connector (sold separately)
Experience Level:
Skill Level 2 = Some Experience Required
Rec. Environment:
Assembly Required:

Product Manuals

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