Parts/Complete vehicles & kits/ARF / BNF aircraft/E-flite Ultrix BNF Basic Electric Airplane w/AS3X & SAFE Select (600mm)
E-flite Ultrix BNF Basic Electric Airplane w/AS3X & SAFE Select (600mm)
E-flite

E-flite Ultrix BNF Basic Electric Airplane w/AS3X & SAFE Select (600mm)

Part # EFL022503.3(4)
Where to buy
$179.99
AMain Hobbies
Seen Oct 12, 2026
$179.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

More Capable, Improved Versatility, Flies Better & Bigger! 

The E-flite Ultrix 600mm BNF Basic Electric Airplane is an extremely versatile delta wing aircraft that offers smooth handling, combined with aerobatic and 3D capabilities you'd never expect. Twin brushless motors deliver an incredible power-to-weight ratio with the power to hover, unlimited vertical performance and good speed. Differential thrust adds the ability to perform harriers, flat spins, and other advanced aerobatics. Plus, extremely durable EPP construction makes it one of the toughest E-flite models ever!

The Ultrix 600mm is an enlarged version of the popular UMX Ultrix. It is easier to see and is aided by exclusive AS3X technology that works behind the scenes to smooth out the effects of wind and turbulence to deliver a locked-in feel, so it handles windy conditions even better. Optional-use SAFE Select technology makes it easy even for low-time pilots to fly successfully in large yards, parks, sports fields, RC flying, and other fields. The included optional-use fixed nose wheel makes it possible to taxi, takeoff, and land on smooth surfaces. Or you can leave the nose wheel off for more speed and vertical performance plus easy hand launches over and landings on grass. Fully factory-assembled, the Ultrix 600mm is ready to fly within minutes of opening the box. Just add a 3S 800–850+mAh battery and bind it to a compatible Spektrum DSMX/DSM2 equipped transmitter. It even delivers a variety of real-time power system related telemetry data – including battery voltage, current, and more – to compatible transmitters. You can also install the optional LED light kit (not included) for improved visibility during daylight conditions and to fly at night!

 

Features:
  • Innovative and unique design capable of smooth sport, aerobatic AND 3D flying all in the same flight
  • Scaled up from the UMX™ Ultrix™ to offer better visibility and the ability to fly in more wind
  • Fits 3S 800–850+ mAh LiPo batteries for a wide range of performance and flight times
  • 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
  • Provides telemetry data to compatible transmitters including flight battery voltage
  • Easy to fly with innovative and optional-use SAFE® Select flight envelope protection
  • The unmatched stability and locked-in feel of exclusive AS3X® technology
  • Spektrum™ receiver with industry-leading 2.4GHz DSMX® technology
  • Extremely durable yet lightweight, fully-molded EPP airframe
  • Fully factory-assembled and ready to fly right out of the box
  • Optional LED light kit (sold separately) for flying at night
Specifications:
Approximate Assembly Time: Less Than 1 Hour
Battery: Sold Separately
Charger: Sold Separately
Completion Level: Bind-N-Fly Basic
Flying Weight: 0-250g
Power Type: Electric
Landing Gear: Optional (included)
Product Length: 16.3" (414 mm)
Product Weight: 8.22 oz. (233g)
Radio: Sold Separately
Receiver: Included
Recommended Motor Battery: 3S 11.1V 800–850+mAh LiPo with IC2® Connector
Servos: Included
Speed Control: Included
Wingspan: 23.6" (599 mm)

Includes:
  • (1) E-flite® Ultrix™ 600mm
  • (2) Brushless Outrunner Motors (installed)
  • (2) Linear Servos (installed)
  • (1) Spektrum™ Receiver with (2) Brushless ESCs (installed)
Needed to Complete:
  • Full-range 5+ channel Spektrum™ DSMX®/DSM2® compatible transmitter
  • 3S 11.1V 800–850+mAh LiPo with IC2® Connector (or JST connector plus a suitable IC2 to JST adapter, sold separately)
  • Compatible LiPo charger 
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

Reviews3.3 · 4 reviews

Viperon E-flite Ultrix BNF Basic Electric Airplane w/AS3X & SAFE Select (600mm)

My grandsons and I have been flying this Ultrix for about a year and we love it. It is a great flier. It is very durable since we have put it in a tree and smacked it on the ground a few times. Just pick it up and fly it again. The 3s batteries come with a IC2 connector as well as the ESC has an IC2 connector. I use a IC2 to IC3 adapter so I can use my charger to charge the batteries. Great plane to fly and have fun with.

2 found this helpful
JarebbVerified owneron E-flite Ultrix BNF Basic Electric Airplane w/AS3X & SAFE Select (600mm)

Received this item and has issues during setup and test flight. Troubleshoot with Amain’s engineer and found out that the left motor and the receiver board are faulty. Got to wait more than 60 days for parts availability. The pain is the long wait time for parts when the product I bought is new. I would hope Amain could do a return and refund for such incident or Return and Ship out a replacement product. Wish I could get to fly this soon.

1 found this helpful
David DeBoltVerified owneron E-flite Ultrix BNF Basic Electric Airplane w/AS3X & SAFE Select (600mm)

I started getting disappointed as soon as I started unpacking this airplane!!!??? The first thing I noticed was how cheap it felt! Then noticed the battery plug was a special ie2 plug that no one has ( could have just been a jstplug) then realized Eflite couldn't even give us 2 real servos they were the geared one's!! There was no way to hold batteries in place either!?? 200.00 dollars!!!???? Come on Eflite stop ripping us off! However it did fly ok and safe worked There isn't any real return policy or I would have used it#!

Gordon GuruleVerified ownerMay 20, 2025on E-flite Ultrix BNF Basic Electric Airplane w/AS3X & SAFE Select (600mm)

I like to play it's a blast to fly and easy to control performs like a champ

What reviewers say

Four reviews with mixed ratings (two 5/5, two 2/5 and 1/5). Reviewers who praise the Ultrix describe it as a durable, easy-to-control flier that performs well and is fun to fly, and one owner reports repeated crashes without damage. Critical reviewers report setup and test-flight problems, including a faulty left motor and receiver board, with parts reported to take over 60 days. Other complaints concern build quality, a non-standard battery connector, geared servos, no battery retention, and price. One reviewer notes the flight performance was acceptable and SAFE worked. The reviews are few and conflicting, and all are for the 600mm BNF variant.

  • + Easy to control
  • + Durable in crashes
  • + Flies well and is fun
  • + SAFE functions in flight
  • − Faulty parts out of the box
  • − Long wait for replacement parts
  • − Cheap feel and geared servos
  • − Non-standard battery connector and no battery retention
Summary generated from the reviews above.

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