Other Sellers on Amazon
+ Free Shipping
+ Free Shipping
+ Free Shipping
E-flite U2980 UMX Radian BNF Airplane
|Price:||$96.28 & FREE Shipping. Details|
- Lightweight, molded-foam construction
- 3-channel control for easy-flying and friendly soaring characteristics
- Bind and fly.
- Contoured spinner with folding propeller
Frequently bought together
Compare to similar items
This item E-flite U2980 UMX Radian BNF Airplane
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Item Dimensions||10 x 31 x 4.3 in||21.5 x 21.75 x 5.75 in||19.25 x 19.75 x 5 in||16.1 x 56.2 x 6.5 in||24.8 x 19.09 x 6.69 in||10.63 x 23.25 x 5.5 in|
Customers who bought this item also bought
Key Features Lightweight, molded-foam construction AS3X System provides outstanding stability and smoother flight3-channel control for easy-flying and friendly soaring characteristics Contoured spinner with folding propeller (installed)One-piece, removable wing with carbon fiber support-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 Overview The E-flite UMX Radian is a powered sailplane that packs all the simple fun of the larger Park Zone Radian into a much smaller package that's an absolute delight to fly. AS3X technology gives a pilot the feeling of flying a much larger glider especially outdoors because of its renowned ability to smooth out the effects of wind and turbulence. Its distinctively curved wing delivers outstanding lift and impressive glide ratio using 3-channel control simplicity. The lightweight brushed power system requires just a single-cell Li-Po battery to provide excellent launch performance and long flight times. Plus the one-piece wing can be easily removed and stored in the handle-equipped box making your ability to soar through the clouds as convenient as can be. You'll be in the air in no time thanks to great features like: Folding Propeller For maximum glide efficiency, the ESC is specially programmed to work with the folding propeller so it opens quickly and folds back to streamline the airframe.
Customers who viewed this item also viewed
Top Customer Reviews
UMX is crazy small, I knew that, but even after watching a few videos of it, it's still smaller than I expected and weights practically nothing. So I was a little worried about how it'd handle in a wind, which we generally have plenty of around here, but it actually holds up quite well. It does get tossed around a bit, but having the AS3X stabilization really helps. I didn't plan on liking the AS3X, planning instead to order the USB cable to reprogram it, but having flown it in the wind I think I'll leave it on. It really does make a difference as wind gusts or turbulence from trees, etc buffet the plane the AS3X reacts really quickly to keep it responding to the inputs you're feeding it and smooth out the turbulence. The AS3X does fight you a little on loops but it'll handle them fine. For the flight conditions I'm generally in, I don't think I'd like this plane if it didn't have AS3x, it'd get tossed around way too much and I'd always be fighting the sticks.
I was surprised how well this thing glides and thermals. Flying in a soccer field behind a school parking lot earlier today, I did a full power climb into a good breeze for about 30 seconds then cut the throttle. Found a decent thermal over the parking lot and rode it till I could barely see the bird, had to dive out of the thermal after about 10 minutes cause I couldn't see it enough to tell orientation. I'll be putting some red packing tape on the bottom of the wing to help distinguish it from the clouds/sky in the near future.
Do pick up a few extra batteries, they're pretty cheap. I'm flying this on a Spektrum DX8 (overkill for this, but works) and have a battery timer set for 6 minutes which is counting down only when the throttle is over 25%, depending on wind/thermals/etc flight times range from 10-20 minutes per battery.
I have three Rates/Expos setup, generally only use two of them.
1) Full Rate, No Expo (occasional use in windy landings)
2) 70%, No Expo (using this in thermals)
3) Full Rate, 35% Expo (Used most of the time)
I think Full rate and 25% expo would probably be a good starting point for most folks. I also suggest, in general, having a throttle cut setup to prevent bumping the throttle stick as you're about to catch the plane for catch landings. I have one setup, but the one time I didn't use it today, bumped the stick (ouch). I'll also be adding a bit of elevator/throttle mixing to keep the nose down a bit on full throttle.
You do want to make sure the control surfaces are centered before the first flight. The manual does mention this and in general it's needed on most new planes, but pay extra attention to it. The rudder on mine was a good 25% left out of the box. This will show up on the first power off hand toss test glide, but check it before anyways. Adjust the control rods as needed and fine tune it with a little trim. It should glide straight and reasonably level/stable before you ever use power.
To sum it up, this is a great little plane. If you're interested in gliders and only have a small place to fly, this is a great option. You can ridge soar with it, you can thermal with it and you can do a few tricks. I think most beginners would have a fair amount of success with it once it is trimmed correctly.
Putting it together is super easy: two wing screws and a little velcro then bind and fly. My wing was a little loose, I just put the dorm grip on the screw driver to get it real tight. The elevator was also a little out of alignment. I twisted it back and wrapped scotch tape around where the top half meets the back fuselage. My decals were bubbled up too. I just pressed them down and poked holes in the bubbles.
First flight was on a windy day, so windy that I was able to land it at my feet... going backwards! It's considerably sensitive to CG so take care placing the battery in. I also recommend using better velcro, my battery fell off in flight and dangled.
It was pretty windy but it handled well. I am really impressed at it's turning ability with no ailerons, I didn't even notice to be honest. The AS3X stuff also works like a charm and keeps the plane under control
For $89, I think it's way too over priced for what you get. You can get a radian Pro for $120 now. If it were $50 then it would be 5 stars even with the tiny flaws. If you really want one, wait for a holiday sale or something
FYI, it will bind to the Champ RTF transmitter.