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E-flite EFLU1280 Airplane (Discontinued)

This item has been discontinued. The parts still available are listed below.
  • UMX ASK-21 BNF

    The E-flite® UMX™ ASK-21 model is a scale RC sailplane of the renowned two-seater designed by Rudolf Kaiser and built by the famous Alexander Schleicher GmbH & Co. A first of its kind, the UMX ASK-21 plane is an elegant, fully-functional 4-channel aircraft that, at altitude, is capable of loops and rolls, as well as thermal or slope soaring that's popular around the world. Lightweight and sleek, its onboard AS3X® System is custom tuned to offer the silky-smooth experience of flying a Giant-Scale sailplane, even in breezy conditions. Like a Giant-Scale sailplane, the UMX ASK-21 plane is equipped with remote tow hook release control, making it aerotow capable when paired with a powerful RC airplane like the E-flite UMX Carbon Cub SS (EFLU1180). You’ll find that its onboard AS3X System is excellent at stabilizing the various flight conditions an unpowered model can encounter, especially at high speeds during launch on the Hi-Start or tow line. The UMX ASK-21 plane can be ready for its first flight in just a few minutes. Just charge the included Li-Po battery and bind to your own full-range DSM2® or DSMX® 4-channel transmitter, such as the Spektrum™ DX4e transmitter.


    • AS3X® System for silky-smooth handling and precision
    • Four-channel control including remote tow hook release
    • Elegant scale appearance with outstanding thermal performance
    • Smooth-molded construction with carbon fiber reinforcement
    • Removable one-piece wing with high efficiency airfoil
    • Performance ultra micro, linear long-throw servos (installed)
    • High-power series 1S Li-Po receiver battery and fast charger (included)
    • Hi-Start launch system included (~120 foot unstretched length)

    You Will Need

    - 4+ channel DSM2®- or DSMX®-compatible full-range transmitter


    Wingspan: 33.9 in (860mm)
    Overall Length: 17.0 in (432mm)
    Flying Weight: 2.56 oz (72.5 g)
    Wing Area: 80.4 sq in (520 sq cm)
    Recommended Environment: Outdoor
    Recommended Battery: 3.7V 1S 150mAh 25C Li-Po
    Experience Level: Intermediate
    Is Assembly Required: No
    Minimum Age Recommendation: 14 years
    Flaps: No
  • E-flite UMX ASK-21 BNF Parts List (9 items)

    • E-flite EFLB1501S25 Battery 1-Cell 150mAh
      In Stock
    • BLADE EFLH1067
      In Stock
    • E-flite EFLU1202
      In Stock
    • E-flite EFLU1257
      In Stock
    • E-flite EFLU1264
      Out of Stock

      Clearance Item! Originally $63.99.

    • ParkZone PKZ3052 Battery Leads (Barewire)
      In Stock
    • Spektrum SPM6836 Servo Related
      In Stock
    • Spektrum SPMSA2030L Servo & Related
      In Stock

      When every gram counts, get the most out of your micro and ultra micro aircraft with the Spektrum™ SA2030L 2.3-Gram … Read More

    • Spektrum SPMSA2030LO Servo & Related
      Out of Stock

      The 2.3-gram Linear Long Throw Offset Servo is a special use servo designed for modelers without computer transmitters who would … Read More

  • Manuals and Support

  • Test 1

Language Picker

  • English
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