UMX Radian BNF by E-flite



Availability: In stock

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Quick Overview

UMX, Radian, BNF, by, E-flite,

Key Features

  • Lightweight, molded-foam construction
  • AS3X® System provides outstanding stability and smoother flight
  • 3-channel control for easy-flying and friendly soaring characteristics
  • Contoured spinner with folding propeller (installed)
  • One-piece, removable wing with carbon fiber support
  • E-flite® 8.5mm x 23mm coreless brushed/geared (installed)
  • Spektrum™ DSM2®/DSMX® 5-Ch UM AS3X Receiver/Servos/ESC unit (installed)
  • E-flite 1S 3.7V 150mAh 25C Li-Po battery (included)
  • E-flite USB Li-Po charger, 300mA (included)
  • Included 1S Li-Po battery provides long flight times on a single charge
  • Ideal for outdoors and larger indoor flying sites

Needed To Complete

- 4+ channel DSM2- or DSMX-compatible transmitter


Wingspan: 28.7 in (730mm)
Overall Length: 16.5 in (418mm)
Flying Weight: 1.50 oz (43 g)
Motor Size: 8.5mm coreless brushed motor
Radio: 4+ channel transmitter required
CG (Center of Gravity): 1.22 in (31mm) back from the leading edge of wing at wing root
Recommended Motor Battery: 1S 3.7V 150mAh 45C LiPo
Flaps: No
Approx. Flying Duration: 8-10 minutes
Charger: 1S 300mA LiPo USB Charger
Is Assembly Required: Yes
Assembly Time: Less than 1 Hour
Plane Type: Sailplane
Experience Level: Intermediate
Power Plant Size: Micro Electric
Recommended Environment: Indoor/Outdoor
Fuel Type: Electric

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Customer Reviews

great little powered glider. Review by Billy
I love this little plane. It is the easiest thing lo learn on. It is worth getting extra batteries and a charger that can charge several at a time. This can be an indoor or outdoor flyier. It can use thermals for extended flight times. This powered glider helped me develop confidence to fly more expensive airplanes. (Posted on 4/18/2016)
Serous performance in a small package. Review by Mike
The UMX Radian is perfect for the small school field a 1/2 block from my house. I get surprisingly long flights, finding the lightest thermals over the buildings, blacktop, fields across the street. The AS3X makes it handle like my larger gliders, and offers smooth flight in light gusty conditions. Taking time to adjust the CG and marking the battery location will provide smooth transitions from power to to a smooth glide with no trim change. It also works great sniffing out thermals before tossing my Mountain Models DL50 discus launch glider. (Posted on 11/5/2015)
Excellent airplane for very little money Review by OldIronPants
Having owned it's larger prototype I was sure the UMX version would be just as good and E-flite did not disappoint me. It loops quite well, will float for several minutes even without a thermal and has flown in winds up to 10 mph with no difficulty. I use the 45C lipo battery as provided in the box and the flight times will satisfy most fliers with 15-22 minute flight times. (Posted on 10/31/2015)
A blast to fly Review by SandyGabby
I converted mine to a 500mah 3.7 volt battery. The plane does not seem to notice the extra weight.
Using the 150mah battery I was getting flights of 15-30 minutes. After converting to the 500mah battery,
I was able to get four 20 minute flights without replacing the battery. With 3 channels, control is positive.
The plane flies very similar to the larger Radian. The AS3X allows you to fly in very windy conditions and
still have good control. I have flown in 10-15 mph wind and the plane performed well. I would say that
15mph is about the max. If you allow the plane to get downwind, it could be very hard to retrieve the plane
as 15mph is about the max speed of the glider.
I also caution against strong thermals, as you could get caught up and not be able to descend fast enough.
Using the 500mah battery, my longest flight was 48 minutes. I spent the final 20 minutes trying to descend
out of a thermal. When I landed, the battery was almost totally exhausted.
Great little glider that flys like a much bigger plane.
(Posted on 10/2/2015)

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