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This updated and upgraded version of the E-flite UMX WACO is now equipped with optional-use SAFE Select that makes it more stable than ever before, plus exclusive Spektrum™ AS3X® that keeps things smooth so it feels like you’re flying a much larger model, even in windy conditions. The factory-installed brushless power system features an upgraded 2S- and 3S-compatible outrunner motor. Install 2S 280mAh batteries for performance similar to the original model, or use 3S 300mAh batteries for more speed and unlimited vertical performance. The control unit includes an ESC and Spektrum™ receiver that provides real-time flight battery voltage telemetry to compatible Spektrum AirWare™ equipped transmitters while you fly. It’s constructed of advanced EPS material for a lightweight yet durable airframe, and it’s now available in two trim scheme color combinations including fully-painted yellow and lighter-weight unpainted white base versions. Best of all this Bind-N-Fly® Basic model arrives 100% factory-assembled and is ready to bind to your 5+ channel DSMX®/DSM2® equipped transmitter so you can be flying within minutes of opening the box! The lightly loaded biplane design and ultra-micro size are perfect for flying indoors in gymnasiums and similar large spaces, or outdoors pretty much anywhere — from yards to parks, sports fields, and beyond.

This model is equipped with Horizon Hobby and Spektrum exclusive AS3X (Artificial Stabilization – 3-aXis) and optional-use SAFE (Sensor Assisted Flight Envelope) Select technologies, and when SAFE Select is turned on using the mode switch (B on the Spektrum InterLink DX controller) it offers:

Pitch and Bank Angle Limits
These envelope limits keep the airplane from rolling or pitching upside down. They also prevent excessive climb or dive angles.

Automatic Self-Leveling
The airplane instantly returns to and holds level flight when the sticks are released and in the center position. It’s also helpful for keeping the wings level during takeoffs and landings.