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E-Flite UMX Ultrix BNF Basic (E-Flite EFLU6450 | EFLU6450)

Model: E-Flite EFLU6450
Dist. #: EFLU6450   SKU: EFLU6450

Customer Reviews: Rated 5.0 stars 5 of 5 (1 Review)

Out of stock

Price:  $139.99

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Updated on Jul 2, 2025 08:38:17 PM

UMX Ultrix BNF Basic...


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E-flite UMX Ultrix BNF Basic





Introduction
The Ultrix™ features a unique, brand new design that provides a flight experience unlike any other, specifically for designs in the UMX™ (Ultra Micro eXtreme) class. This twin brushless motor-powered, delta wing aircraft stands out at smooth sport flying, basic aerobatics and even aggressive 3D — all in the same flight. Its amazing power-to-weight ratio offers hovering capability and unlimited vertical performance. Differential thrust adds yaw control and the capability to carry out innovative aerobatic maneuvers including harriers, amazing flat spins and more. Plus EPP construction makes the Ultrix the most resilient UMX model yet — prepared to excitement RC pilots with more performance in more locations and smaller sized spaces!





Features

Innovative and special design capable of smooth sport, aerobatic AND 3D flying

Effective twin brushless motors provide the power to hover and climb out vertically

Differential thrust for yaw control to carry out flat spins and other maneuvers

Ultra micro size can be flown in more locations and smaller sized spaces

Extremely resilient yet lightweight, fully-molded EPP airframe

Industry-leading Spektrum™ 2.4GHz DSMX® innovation

Easy to fly with optional-use SAFE® Select flight envelope defense

Unrivaled stability and locked-in feel of AS3X® innovation for smoother flight performance

Optional LED light kit/set (offered separately; EFLU6455) for flying at night

Fully factory-assembled and prepared to fly





Overview

The UMX™ Ultrix™ is a smooth handling, very versatile delta wing with aerobatic and 3D capabilities that you might not expect based upon its appearances alone. The twin brushless motors provide an incredible power to weight ratio that offers good speed, lots of power to hover and unlimited vertical performance. Differential thrust adds the capability to carry out harriers, flat spins and more amazing aerobatics. And very resilient EPP construction makes this one of the most difficult ultra micro designs yet. The Ultrix handles windy conditions well, assisted by unique AS3X® (Artificial Stabilization – 3-aXis) innovation that works behind the scenes to ravel the impacts of wind and turbulence for a locked-in feel — it's like you're flying a much larger aircraft. Optional-use SAFE® (Sensing Unit Assisted Flight Envelope) Select innovation makes the Ultrix easy enough for low-time pilots to delight in, and the ultra micro size and lightweight construction are fit for flying practically anywhere. Competent pilots can let go indoors in a space as little as a single basketball court, while large backyards, sports fields and RC fields make perfect outdoor flying sites for just about everybody. Fully factory-assembled, the Ultrix is prepared to fly within minutes of opening the box. Just include a budget friendly 1ST 500mAh battery (EFLB5001S25) and bind it to a compatible Spektrum™ DSMX®/DSM2® equipped transmitter! You can even set up the optional LED light set (EFLU6455) for improved exposure throughout daytime conditions and to fly at night!





Needed to Total

Full-range 5+ channel Spektrum™ DSMX®/DSM2® compatible transmitter

1ST 3.7V 500mAh LiPo with JST Adapter

Suitable LiPo battery charger

What's in the Box?

(1) E-flite® UMX™ Ultrix™ with:

(2) Brushless Motors (installed)

(2) Linear Servo (installed)

(1) Spektrum™ Receiver with (2) brushless ESCs (installed)

(1) Product Manual





 




Uniquely Capable

Uniquely Capable
The special, innovative design of the UMX™ Ultrix™ makes it capable of smooth sport flying, basic aerobatics and even aggressive 3D flying — all in the same flight!
 

Twin Power

Twin Power
Effective twin brushless motors provide an incredible power-to-weight ratio to supply the capability to hover and unlimited vertical performance. Differential thrust offers yaw control and the capability to carry out innovative aerobatic maneuvers including harriers, amazing flat spins and more.
 




Durable Design

Durable Design
The sleek and easy delta wing design is molded from lightweight yet very resilient EPP, making the Ultrix™ one of the most difficult UMX™ airplane ever.
 

Optional LED Lights

Optional LED Lights
Set up the optional LED light set (EFLU6455) for improved exposure throughout daytime conditions and to fly in darker conditions or perhaps at night.
 





Exclusive Technologies

Exclusive Technologies
This Bind-N-Fly® Fundamental model is equipped with unique Spektrum™ AS3X® (Artificial Stabilization – 3-aXis) and SAFE® (Sensing Unit Assisted Flight Envelope) Select innovations. AS3X works behind the scenes to ravel the impacts of wind and turbulence to provide a locked-in feel that makes it look like you're flying a much larger aircraft. Optional-use SAFE Select offers pitch and bank angle limits along with automatic self-leveling that can be turned on and off at the flip of a switch, making the Ultrix™ easy to fly for low-time and skilled pilots alike.
 

Fully Factory-Assembled

Fully Factory-Assembled
The UMX™ Ultrix™ gets here 100% factory-assembled and is prepared to fly within minutes of opening the box. It's equipped with industry-leading Spektrum™ 2.4GHz innovation that binds to your 5+ channel DSMX®/DSM2® equipped transmitter so you can be flying in practically no time at all.
 





SAFE technology

Bind-N-Fly Completion Level Advantage
Currently own a Spektrum™ transmitter? Bind-N-Fly (BNF) airplane make entering into the air rapidly and with the best control experience possible simpler than ever. They come out of the box with the power system, servos and a Spektrum 2.4GHz receiver installed so all you need to do is bind the receiver to a compatible transmitter, end up any last assembly, and fly!

This Bind-N-Fly Basic model is equipped with a Spektrum 2.4GHz DSMX® receiver featuring AS3X (Artificial Stabilization–3–aXis) innovation that works behind the scenes to ravel the impacts of wind and turbulence. The result is an increased sense of stability and precision that makes you feel like you're flying a much larger, expertly tuned aircraft.

If this is your very first model of its type, or you desire an extra margin of security while acquainting yourself with the aircraft, you can allow the optional-use SAFE® Select flight envelope defense innovation built into the receiver. No complex programming is required.

With SAFE Select made it possible for, you get:

Pitch and Bank Angle Limits
These envelope limits keep the aircraft from rolling or pitching upside down. They likewise avoid excessive climb or dive angles.

Automatic Self-Leveling
The aircraft instantly returns to and holds level flight when the sticks are launched and in the center position. It's likewise handy for keeping the wings level throughout takeoffs/launches and landings.

Easy Change Project
The easy procedure for designating a transmitter switch to turn SAFE Select functions on and off does not require any programming and takes simply a couple of seconds.

The easy procedure for designating a transmitter switch to turn SAFE Select functions on and off does not require any complicated programming and takes simply a couple of seconds.




 

E-flite UMX Ultrix BNF Basic



Requirements

Aileron: Yes

Approximate Assembly Time: Less than 1 Hour

CG (Center of Gravity): 6.9" (175mm) back from the nose with the battery at front of battery tray

Charger: 1ST 3.7V LiPo

Completion Level: Bind-N-Fly Basic

Elevator: No

Flaps: No

Flying Weight: 0-250g, 2.29oz (65g)

Landing Gear: None

Length: 12.9" (320mm)

Minimum Required Radio: 5-channel

Minimum Speed Control: Receiver/ESC system installed

Motor Size: 0805

Prop Size: 60mm x 2.5mm

Recommended Motor Battery: 500mAh 1ST 25C LiPo

Pulls back: No

Rudder: No

Servos: Two 2.3g long toss servos installed

Transmitter Variety: Full

Wingspan: 13.5" (342mm)

Frequently Bought Together

E-Flite UMX Ultrix BNF Basic
+
E-Flite 500mAh 1S 3.7V 25C LiPo Battery
+
E-Flite 1S USB Li-Po Charger, 500mA, JST: 180 QX HD
This Item: E-Flite UMX Ultrix BNF Basic
$139.99
E-Flite 500mAh 1S 3.7V 25C LiPo Battery
$11.99
E-Flite 1S USB Li-Po Charger, 500mA, JST: 180 QX HD
$13.99

Total Price: $165.97

Add All Three To Cart
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Rated 5 stars Best Micro Ever
By Loophole L on March 18, 2020   Verified Purchase

Spectacular micro ! Handles wind nicely; does flat spins on Stability mode, and "bullet dives" on Stunt two mode. Flies easily, lands gracefully. You can't go wrong with this fun bird !

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