Product Details

Key Features

• Fun to fly and FPV/HD camera ready
• Up to 3 camera mounting stations
• Available SAFE® Select flight envelope protection
• Plug-in wing and winglet sections for easy transport
• Spektrum™ AR631 6-channel AS3X® receiver with SAFE Select technology

In The Box

• (1) Opterra 2m Wing Plane
• (1) 1300Kv Brushless Outrunner Motor (installed)
• (1) 40 A ESC (installed)
• (1) Spektrum™ AR631 SAFE and AS3X 6-Channel Receiver (installed)
• (1) Product Manual

Needed to Complete

• (1) Full-range, 4+ Channel DSMX®/DSM2® Transmitter
• (1) 2200-3200mAh 3S LiPo Flight Battery with EC3™ or IC3® Connector
• (1) 3S compatible LiPo Charger

UPDATED FOR ULTRA-SMOOTH SOARING

The ever-popular UMX^™ Radian^® has been updated and upgraded so it's even easier and more fun to fly than before! The ultra-micro motor glider now includes exclusive Spektrum^™ optional-use SAFE^® Select technology and provides real-time battery voltage telemetry to compatible transmitters. This Bind-N-Fly^® Basic model arrives factory-assembled and nearly flight-ready right out of the box. Simply install the one-piece wing with a few screws, install a charged battery, bind it to your compatible Spektrum transmitter and fly. Advanced EPS construction provides a lightweight yet durable airframe. The distinctive, gracefully curved polyhedral wing and efficient airfoil deliver outstanding soaring performance and long flight times with or without motor power. The factory-installed power system features a coreless motor, gearbox and an efficient folding propeller. It produces excellent climb performance and extends flight times up to 10-20+ minutes with a mix of power on/off flying using 1S 150-200mAh batteries. Because of its ultra-micro size, the UMX Radian can be flown indoors in gymnasiums and other suitable spaces, or outdoors pretty much anywhere — in most yards, parks, sports fields and beyond! If you learned to fly with a HobbyZone^® Sport Cub S, you can use the same transmitter, battery and charger and make the Radian an economical next step. It's an ideal first glider or everyday sport model for low-time to experienced pilots interested in an easy to fly, ultra-micro class motor glider that delivers a unique flying experience!

Advanced Aerodynamics and Lightweight Construction

Central to the aircraft’s amazing capabilities are the advanced aerodynamics that shaped its design. In addition to its efficient airfoil, winglets and fins on the fuselage help the model track true in all kinds of air. Vortex generators near the leading edge of the top of the wing, and just ahead of the elevons on the bottom of the wing, enhance slow speed stability and control. The airframe itself is constructed of carbon-reinforced, hollow-core Z-Foam™ material that keeps weight to a minimum while maintaining strength and rigidity.

Easy to Assemble and Transport

One of the model’s most impressive features is how easy it makes it for you to take it with you anywhere. Its plug-in wing panels and winglets are secured with thumbscrews so assembly or disassembly can be done in a matter of minutes. And the box it comes in is designed to function as a carrying case complete with a handle.

High-Output Brushless Power System with Folding Prop

The high-output power system provides more than enough power for carrying camera payloads or performing sport aerobatics. When you want to power off and grab a thermal, the folding prop reduces drag so you can glide longer.

Up to 3 Camera Mounting Stations Available

In addition to a sleek, low-drag nose for soaring and flying aerobatics, the Opterra wing includes an optional camera nose with up to two forward-facing stations for FPV or HD cameras. There is also a downward-looking camera bay in the belly designed for GoPro Hero 3, Hero 4 and similar HD cameras.

The camera nose includes four foam inserts:

• Insert for GoPro Hero 3 and Hero 4 Cameras
• Insert for recommended Spektrum™ FPV camera (see below)
• Insert for other FPV cameras
• Blank insert that can be custom cut for other payloads

It also has an external mounting station for low-profile Mobius or Legend HD cameras. This allows pilots to mount an HD camera on top of the nose and an FPV camera in the nose.

Recommended FPV System – All Items Sold Separately

• Video Transmitter
  • In EU: 25-200-600mW Adjustable Power Video Transmitter (SPMVT1000)
  • In EU: 25-200-600mW Adjustable Power Video Transmitter (SPMVT1000)
• Video Transmitter Antenna
  • Spektrum RHCP Straight Connector Antenna Set (SPMVX5801)
  • RHCP Omni Right Angle Connector (2) (SPMVX5802)
• Camera - Spektrum 650TVL CCD FPV Camera NTSC (SPMVC650)
• Power Adapter - Spektrum Power Adapter (SPMA9556)
• Headset/Video Monitor - Spektrum 4.3-Inch Video Monitor with Headset (SPMVM430C)

Product Specifications