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The E-flite UMX Eratix is an ultra-micro version of the original, oriented toward indoor and small-field 3D flying.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
This is the base game required to play this DLC. Other expansions may also be required.
The E-flite® Eratix 3D FF (Flat Foamy) 860mm took the market by storm by being the most convenient, easiest to assemble and fly “flat foamy” model in its class. Now the UMX™ Eratix 3D FF 450mm offers those same benefits in a scaled-down, ultra-micro size so you can fly in more places and smaller spaces – including indoors! It arrives fully factory assembled and ready to fly right out of the box, including a 2S-compatible brushless outrunner motor with a prop saver, four servos, and a Spektrum receiver featuring AS3X® and SAFE® Select technologies.
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.
Right now the cheapest offer for RealFlight Evolution - E-flite UMX Eratix 3D FF 450mm is PLN 13.53 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for RealFlight Evolution - E-flite UMX Eratix 3D FF 450mm is PLN 13.53 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when RealFlight Evolution - E-flite UMX Eratix 3D FF 450mm drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
