E-Flight UMX WACO BNF Basic with AS3X and SAFE Select (White)
E-Flight UMX WACO BNF Basic with AS3X and SAFE Select (White)

E-Flight UMX WACO BNF Basic with AS3X and SAFE Select (White)

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Your Price: $159.99
Part Number: EFLU53550
GTIN: 605482185902
Brand: Eflight
Availability: Coming Soon

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.


  • An officially licensed scale replica of the modern-day yet classic YMF-5 biplane design
  • The most affordable, convenient, capable, and easiest-to-fly WACO model yet
  • More powerful 2S and 3S-compatible outrunner motor and ESC
  • Compatible with the Spektrum™ DXS transmitter included with many RTF models
  • Real-time battery voltage telemetry with compatible Spektrum transmitters
  • Spektrum receiver with industry-leading 2.4GHz DSMX® technology
  • The unmatched stability and locked-in feel of exclusive AS3X® technology
  • Easier to fly with optional-use SAFE® Select flight envelope protection
  • Completely factory-assembled and ready to fly right out of the box
  • Factory-finished with a scale trim scheme available in two color options
  • Scale details including simulated flying wires and a pilot figure with a scarf


Motor TypeBrushless
Speed ControlIncluded
Product Weight4.2oz (119g) with Recommended Battery
LiPo Compatibility3S
Completion LevelBind-N-Fly Basic
Propeller Size5.75 x 2.50
Recommended Motor Battery11.1V 300mAh 3S 30C LiPo Battery: JST Connector
Minimum Required RadioFull-range 5+ channel Spektrum™ DSMX®/DSM2® compatible transmitter
RadioSold Separately
TechnologyAS3X and SAFE
Power TypeElectric
Skill LevelLevel 2
Wingspan21.65" (550 mm)
Approximate Assembly TimeNo Assembly Required
BatterySold Separately
Connector TypeJST-RCY
Motor Size1208-1900Kv, 10-Pole
Product Length16.45" (418 mm)
ChargerSold Separately

In The Box

  • (1) E-flite UMX WACO 550mm
  • (4) Spektrum Linear Servos (installed)
  • (1) Spektrum Brushless Outrunner Motor (installed)
  • (1) Spektrum Control Unit with
  • (1) Receiver and (1) Brushless ESC (installed)
  • (1) UMX WACO 550mm Product Manual

Needed to Complete

  • (1) Full-range 5+ channel Spektrum™ DSMX®/DSM2® compatible transmitter
  • (1) 2S 7.4V or 3S 11.1V 280–300mAh LiPo with JST-RCY Connector (or JST-PH connector plus a suitable JST-RCY to JST-PH adapter sold separately)
  • (1) Compatible LiPo Charger

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