Product Details
In The Box
- 1x E-flite® UMX™ Viper 30mm EDF with:
- 4x Spektrum Linear Servos (installed)
- 1x Spektrum Brushless Outrunner Motor (installed)
- 1x Spektrum Control Unit with Receiver and Brushless ESC (installed)
- 1x Product Manual
Needed to Complete
- 1x Full-range 5+ channel Spektrum™ DSMX®/DSM2® compatible transmitter
- 1x 4S 14.8V 450mAh 30+C LiPo with IC2 Connector
- 1x Compatible LiPo charger
UMX Viper 30mm EDF Jet BNF Basic with AS3X and SAFE Select Overview
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.
- Scaled down from the extremely popular 64mm, 70mm, and 90mm models
- The best choice for a first-ever and everyday EDF jet
- 30mm fan with a powerful 4S-compatible outrunner motor and ESC
- Optional-use SAFE Select flight envelope protection
- Factory-assembled and nearly ready to fly
Video Overview
UMX Viper 30mm EDF Jet BNF Basic with AS3X and SAFE Select Features
- A scale jet model with smooth sport-airplane handling
- Amazing aerobatic capability
- Real-time battery voltage telemetry
- Spektrum DSMX receiver with fly-by range telemetry
- AS3X stability technology
- Take off and land on smooth surfaces with included landing gear
- Hand Launch Assist Mode for gear-off flying
- Removable wing with quarter-turn thumbscrew
- Functional LED navigation and landing lights
- Iconic Aircraft Studio Design trim scheme
- Full 4-channel control including rudder
- No FAA registration required (under 250g)

Skill Level 2 – Some Experience Required
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.

Bind-N-Fly Completion Level Advantage
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.

Exclusive Technologies
This Viper features exclusive Spektrum AS3X and SAFE Select technologies.

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

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

Factory Assembled
Arrives factory-assembled and nearly ready to fly.

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

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

Gear Options
Fly with or without the included landing gear.
Product Specifications
| 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) |