E-Flite UMX Pitts S-1S BNF Basic w/ AS3X, SAFE R/C

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"You don't fly this airplane," says Aviat Aircraft(TM) Company about its envelope-pushing Pitts® S-1S. "You wear it." The aerobatic biplane's proven design and highly responsive controls have made it a potent competition aircraft for decades.


Due to its overwhelming popularity, E-flite® has brought back the UMX(TM) Pitts® S-1S with updates and upgrades that make it the easiest to fly, most convenient, and most affordable Pitts model yet! It now includes optional-use SAFE® Select, is both 2S and 3S compatible, and provides real-time battery voltage telemetry to compatible Spektrum AirWare(TM) equipped transmitters. Because of its ultra-micro size, the UMX Pitts® S-1S can be flown indoors in gymnasiums and other suitable spaces, or outdoors in many yards, parks, and sports fields. The E-flite® UMX Pitts® S-1S makes it easier than ever for a wide variety of pilots to enjoy an unmatched biplane flying experience!



  • An Aviat Aircraft(TM) Company officially licensed scale replica of the iconic aerobatic design
  • The most affordable, convenient, and easiest to fly Pitts® S-1S model yet
  • More powerful 2S- and 3S-compatible outrunner motor and ESC
  • Compatible with the Spektrum(TM) 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
  • Easy 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


Ultra-Micro, Ultra-Convenient, Ultra-Fun

This updated and upgraded version of the E-flite® UMX(TM) Pitts® S-1S is the most affordable, most convenient, and easiest to fly Pitts® RC model yet. Exclusive Spektrum(TM) AS3X® keeps it smooth and optional-use SAFE® Select makes it more stable than ever before. Plus, the factory-installed brushless power system now features a 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/flight controller includes an ESC and Spektrum(TM) receiver that provides real-time flight battery voltage telemetry to compatible Spektrum AirWare(TM) equipped transmitters while you fly. Constructed of advanced EPS material for a lightweight yet durable airframe, this Bind-N-Fly® Basic model arrives 100% factory-assembled. Just bind it to your 5+ channel DSMX®/DSM2® equipped transmitter and you can be flying in minutes! The ultra-micro size is perfect for flying indoors in gymnasiums and similar large spaces, or outdoors pretty much anywhere - yards, parks, sports fields and beyond. Experience the thrill of piloting one of the most celebrated aerobatic biplanes of all time with your own E-flite® UMX Pitts® S-1S!


Bind-N-Fly Completion Level Advantage

Already own a Spektrum(TM) transmitter? Bind-N-Fly (BNF) aircraft make getting into the air quickly and with the best control experience possible easier than ever. They come out of the box with the power system, servos and a Spektrum 2.4GHz receiver installed so all you need to do is bind the receiver to a compatible transmitter, finish any final assembly and fly!

This Bind-N-Fly Basic model is equipped with a Spektrum 2.4GHz DSMX® receiver featuring AS3X® (Artificial Stabilization-3-aXis) technology that works behind the scenes to smooth out the effects of wind and turbulence so you enjoy a sense of stability and precision that makes it feel like you're flying a much larger, expertly tuned aircraft.

If this is your first model of its type, or you want an extra margin of safety while familiarizing yourself with the airplane, you can enable the optional-use SAFE® Select flight envelope protection technology built into the receiver. No programming is required.

With SAFE Select enabled, you get:

  • 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/launches and landings.
  • Easy Switch Assignment - No Complex Programming Required
    • The simple procedure for assigning a transmitter switch to turn SAFE Select features on and off doesn't require any complex programming and takes just a few seconds. For UMX models like this one, SAFE Select is automatically assigned to channel 5 (Gear) so you can turn it on an off with any switch assigned to that channel (switch A by default on most Spektrum computer transmitters).



  • Completion Level     Bind-N-Fly Basic
  • Technology     AS3X and SAFE
  • Radio     Sold Separately
  • Minimum Required Radio     5+Channel Spektrum(TM) DSMX®/DSM2® Compatible Transmitter
  • Approximate Assembly Time     No Assembly Required
  • Material     EPS
  • Wingspan     17.09" (434 mm)
  • Trim Scheme Colors     Red / White
  • Servos     Included
  • Skill Level     Level 2
  • Power Type     Electric
  • Product Weight     With 3S 300mAh Battery: 5 oz (133 g) Without Battery: 3.7 oz (94 g)
  • Battery     Sold Separately
  • Product Length     15.47" (393 mm)
  • Motor Type     Brushless - Outrunner
  • Speed Control     Included
  • Recommended Motor Battery     2S 7.4V or 3S 11.1V 280–300mAh LiPo with JST-RCY Connector
  • Charger     Sold Separately
  • Receiver     Included


In The Box

  • (1) E-flite® UMX(TM) Pitts® S-1S
  • (1) Brushless Outrunner Motor (installed)
  • (1) Brushless ESC (installed)
  • (1) Spektrum(TM) Receiver (installed)
  • (4) Linear Servos (installed)
  • (1) Product Manual


Needed to Complete

  • (1) Full-range 5+Channel Spektrum(TM) DSMX®/DSM2® Compatible Transmitter
  • (1) 2S 7.4V or 3S 11.1V 280–300mAh LiPo with JST-RCY Connector
  • (1) Compatible LiPo Battery Charger


Used with permission, copyright ©2022 E-Flite/Horizon Hobby, Inc. Copyright ©2022 Brey Corp. t/a Hobby Works.®

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