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Standard-Orders: All of our products are stocked locally in New Zealand and will be shipped on the same day or the next day after you place your order.
Pre-Orders: For all pre-orders, our target delivery timeframe is 2–3 weeks, provided the item is currently in stock at Horizon Hobby.
Please note that all delivery targets are estimates only! We cannot guarantee that you'll receive your order within the specified timeframes.
Featuring functional lights, a 4S compatible power system, and more, the E-flite® UMX™ (Ultra Micro eXtreme) Viper 30mm EDF is scaled down from the best-selling 64mm, 70mm, and 90mm models to deliver smooth handling plus incredible performance that makes it the class-leading choice for first-time to experienced EDF pilots! Like the full-scale ViperJet, it sports fighter-jet looks with the stability of a low-wing sport airplane, so more pilots can enjoy flying a jet – even if it’s your first-ever EDF!
Similar to the full-scale ViperJet, the E-flite® UMX™ Viper 30mm EDF delivers fighter-jet looks and performance with low-wing prop-driven airplane handling so more pilots can enjoy flying a jet! It’s a scale EDF that flies smoothly and handles like a sport airplane - yet is also capable of incredible top speeds and aerobatics. But what truly sets it apart is how easy it is to hand-launch or take off, fly, and land, which makes it the class-leading choice for a wide variety of pilots.
The lightweight, composite-reinforced airframe arrives factory assembled and nearly ready to fly right out of the box, plus it’s factory-finished in the now iconic Aircraft Studio Design trim scheme. A 4S-compatible power system delivers modern-day EDF performance to make it the highest-performance ultra-micro class jet model yet! It’s also equipped with expertly tuned AS3X and optional-use SAFE Select technologies, plus it provides real-time battery voltage and other telemetry information to compatible transmitters.
Its ultra-micro size makes it possible to fly in more places and smaller spaces than most other EDF models, including at many large parks and sports fields. The fixed landing gear with a steerable nosewheel makes it easy to taxi, take off from, and land on smooth surfaces. Or you can quickly remove the landing gear for increased speed and vertical performance, including easy hand launches with automatic Hand Launch Assist mode and smooth landings on grass.

Skill Level 2 aircraft are suitable for RC pilots who already have some experience flying similar class models such as the E-flite T-28 Trojan 1.1m, Valiant 1.3m, Timber 1.5m series, or EDFs like the Habu SS 50mm or 70mm.

Already own a Spektrum™ transmitter? Bind-N-Fly (BNF) aircraft make getting into the air quickly and with the best control experience possible easier than ever.

This Viper features exclusive Spektrum AS3X and SAFE Select technologies.

Provides real-time flight battery voltage and other telemetry to compatible Spektrum AirWare-equipped transmitters.

The 30mm EDF power system delivers the highest performance of any UMX jet yet.

Arrives factory-assembled and nearly ready to fly.

Factory-finished in the iconic Aircraft Studio Design trim scheme.

Composite-reinforced EPS construction is lightweight, durable, and repairable.

Fly with or without the included landing gear.
| Approximate Assembly Time | Less than 1 hour |
| Battery | Sold Separately |
| Charger | Sold Separately |
| Completion Level | Bind-N-Fly Basic |
| LiPo Compatibility | 4S |
| Material | EPS |
| Minimum Required Radio | 5+ channel full range |
| Motor Type | Brushless |
| Power Type | Electric |
| Product Length | 18.1" (460 mm) |
| Product Weight | 4.4oz (125g) without battery; 6.5oz (185g) with battery |
| Receiver | Included |
| Recommended Battery | 4S 14.8V 450mAh 30+C LiPo (IC2) |
| Servos | Included |
| Skill Level | Level 2 |
| Speed Control | Included |
| Technology | AS3X, SAFE Select |
| Trim Scheme Colors | White / Blue |
| Wingspan | 20.9" (531 mm) |
Please note that all delivery targets are estimates only! We cannot guarantee that you'll receive your order within the specified timeframes.
If you change your mind about an item that you've purchased from us or you've ordered the wrong item, you may return the item for an exchange or refund.
Goods returned must be in its original unused condition with original packaging and all the included accessories. We do not accept any crash damaged parts, items that have been modified or used for return or exchange.
You must return the item within 7 days of your purchase. Freight costs for returning the item must be shouldered by the customer.