Product Details
The E-flite Ultrix 600mm is a larger version of the popular UMX Ultrix that's easier to see, handles more wind, uses more common 3S 800-850+mAh batteries and is uniquely capable of smooth sport flying, basic aerobatics, and even aggressive 3D!
Key Features
- Fits 3S 800-850+ mAh LiPo batteries for a wide range of performance and flight times
- Powerful twin brushless motors deliver the power to hover and climb out vertically
- Provides telemetry data to compatible transmitters including flight battery voltage
- Easy to fly with innovative and optional-use SAFE Select flight envelope protection
- Fully factory-assembled and ready to fly right out of the box
In The Box - (1) E-flite Ultrix 600mm with:
- (2) Brushless Outrunner Motors (installed)
- (2) Linear Servos (installed)
- (1) Spektrum Receiver with (2) Brushless ESCs (installed)
(1) Product Manual Needed to Complete- Full-range 5+ channel Spektrum DSMX/DSM2 compatible transmitter
- 3S 11.1V 800-850+mAh LiPo with IC2 Connector (or JST connector plus a suitable IC2 to JST adapter, including SPMXCA322, sold separately)
- Compatible LiPo charger
BIGGER FLIES EVEN BETTER!
Soon after it was introduced, the UMX™ Ultrix™ became one of our most popular ultra-micro models. There was, and still is, nothing else like it! The unique delta wing design excels at smooth sport flying, basic aerobatics, and even aggressive 3D — all in the same flight. This scaled-up version offers the same unique capabilities AND the advantages of a larger size. It's easier to fly because it's easier to see and handles more wind. The Ultrix 600mm also uses more common 3S 800–850+ mAh batteries and includes an optional-use fixed nose wheel so it can takeoff from and land on smooth surfaces. Like the original, it has an incredible power-to-weight ratio for hovering capability and unlimited vertical performance. Differential thrust adds yaw control and the ability to perform advanced aerobatics including harriers, amazing flat spins, and more. Plus, the extremely durable EPP airframe is fully factory-assembled so the Ultrix can be ready to fly just minutes after you open the box!
Features
- Innovative and unique design capable of smooth sport, aerobatic AND 3D flying all in the same flight
- Scaled up from the UMX™ Ultrix™ to offer better visibility and the ability to fly in more wind
- Fits 3S 800–850+ mAh LiPo batteries for a wide range of performance and flight times
- Powerful twin brushless motors deliver the power to hover and climb out vertically
- Differential thrust for yaw control to perform flat spins and other maneuvers
- Provides telemetry data to compatible transmitters including flight battery voltage
- Easy to fly with innovative and optional-use SAFE® Select flight envelope protection
- The unmatched stability and locked-in feel of exclusive AS3X® technology
- Spektrum™ receiver with industry-leading 2.4GHz DSMX® technology
- Extremely durable yet lightweight, fully-moulded EPP airframe
- Fully factory-assembled and ready to fly right out of the box
- Optional LED light kit (sold separately) for flying at night
MORE CAPABILITY AND VERSATILITY
The Ultrix™ 600mm is a smooth handling, extremely versatile delta wing aircraft with aerobatic and 3D capabilities you'd never expect based on its looks alone. Twin brushless motors deliver an incredible power-to-weight ratio that offers good speed, plenty of power to hover, and unlimited vertical performance. Differential thrust adds the ability to perform harriers, flat spins, and more amazing aerobatics. And extremely durable EPP construction makes it one of the toughest E-flite® models ever! An enlarged version of the popular UMX™ Ultrix, the Ultrix 600mm is easier to see and handles windy conditions even better, aided by exclusive AS3X® technology that works behind the scenes to smooth out the effects of wind and turbulence to deliver a locked-in feel. Optional-use SAFE® Select technology makes it easy even for low-time pilots to fly successfully in large yards, parks, sports fields, RC flying, and other fields. The included optional-use fixed nose wheel makes it possible to taxi, takeoff, and land on smooth surfaces. Or you can leave the nose wheel off for more speed and vertical performance plus easy hand launches over and landings on grass. Fully factory-assembled, the Ultrix 600mm is ready to fly within minutes of opening the box. Just add a 3S 800–850+mAh battery and bind it to a compatible Spektrum™ DSMX®/DSM2® equipped transmitter. It even delivers a variety of real-time power system related telemetry data – including battery voltage, current, and more – to compatible transmitters. You can also install the optional LED light kit (sold separately) for improved visibility during daylight conditions and to fly at night!
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. 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).
- Model Number: A-EFL02250
- Manufacturer: E-flite
- Model Name: Ultrix 600mm BNF Basic
- Aircraft Type: Delta wing ultra-micro RC aircraft
- Completion Level: Bind-N-Fly Basic
- Power Type: Electric
- Wingspan: 599mm (23.6 inches)
- Length: 414mm (16.3 inches)
- Product Weight: 233g (8.22 oz)
- Flying Weight: 0–250g
- Airframe Material: Moulded EPP (expanded polypropylene)
- Motors: 2 × Brushless outrunner motors (factory-installed)
- Motor Configuration: Twin differential thrust
- Receiver Type: Spektrum receiver with integrated control unit
- Receiver Technology: 2.4GHz DSMX/DSM2 compatible
- Receiver Features: AS3X gyroscopic stabilisation, optional SAFE Select flight envelope protection, real-time telemetry
- Compatibility: 5+ channel Spektrum DSMX/DSM2 compatible transmitters
- Transmitter Compatibility: DX6e, DX8e, DX6 G2/G3, DX8 G2, DX9, NX6, NX8, NX10, iX12, iX20 and other compatible models
- Speed Controllers: 2 × Brushless electronic speed controllers (factory-installed and integrated)
- Servos: 2 × Linear servo actuators (factory-installed and connected)
- Servo Type: Linear servos
- Battery Type: 3S 11.1V LiPo (lithium polymer)
- Recommended Battery Capacity: 800–850+mAh
- Battery Connector: IC2 connector (or JST with suitable IC2–JST adapter, sold separately)
- Battery Charger: Compatible LiPo charger required (not included)
- Flight Time: Varies with flying style and battery capacity (typically 6–12 minutes depending on conditions)
- Landing Gear: Optional-use fixed nose wheel (included in box)
- Landing Gear Type: Fixed nose wheel for smooth-surface operations
- Takeoff Method: Hand launch from grass or smooth-surface takeoff with nose wheel
- Landing Method: Hand landing on grass or smooth-surface landing with nose wheel
- Radio System: Spektrum 2.4GHz DSMX/DSM2
- Telemetry: Flight battery voltage, current and other power system data to compatible Spektrum AirWare transmitters
- SAFE Select Technology: Optional flight envelope protection with pitch and bank angle limits and automatic self-leveling
- AS3X Technology: Artificial Stabilisation–3-aXis gyroscopic stabilisation
- Flying Capability: Smooth sport flying, basic aerobatics, aggressive 3D flight (harriers, flat spins, knife-edge)
- Differential Thrust: Yes, independent motor control for yaw authority
- Hovering Capability: Yes
- Vertical Climb: Unlimited
- Approximate Assembly Time: Less than 1 hour
- Assembly Status: 100% factory-assembled
- Optional Accessories: LED light kit (sold separately) for daylight visibility and night flying
- Skill Level: Intermediate to advanced (with SAFE Select suitable for beginners)
- UK Flying Weight Compliance: 0–250g (within unrestricted flying limits)
Overview
The E-flite Ultrix 600mm BNF Basic is a larger, enhanced version of the hugely popular UMX Ultrix ultra-micro RC aircraft, offering exceptional versatility for pilots of all skill levels. This innovative delta wing design stands out in the RC flying world because it's uniquely capable of smooth sport flying, basic aerobatics, and even aggressive 3D flying — all within the same flight session. If you're searching for a brushless RC plane that delivers genuine performance across multiple flying styles, the Ultrix 600mm represents outstanding value and capability in the electric RC aircraft market.
Scaled up from its UMX predecessor, the Ultrix 600mm offers significant practical advantages: it's much easier to see in the sky, handles wind considerably better, and accepts the more commonly available 3S 800–850+mAh LiPo batteries you'll find at any UK RC hobby shop. The Bind-N-Fly Basic completion level means you'll have a fully factory-assembled aircraft ready to fly within minutes of opening the box — simply add your transmitter, battery and charger, and you're airborne. The lightweight yet incredibly durable EPP construction makes this one of the toughest E-flite models ever produced, withstanding the inevitable crashes and hard landings that come with learning 3D aerobatics.
Whether you're a beginner looking for your first aerobatic RC plane, an intermediate pilot wanting to expand your flying envelope, or an experienced flyer seeking a portable, durable platform for advanced manoeuvres, the Ultrix 600mm delivers on every front. The included optional-use fixed nose wheel allows smooth-surface takeoffs and landings, whilst removing it enables hand launches from grass with maximum performance and simplicity. This is a ready to run RC aircraft that genuinely grows with your skills and ambitions.
Key Features
- Innovative Delta Wing Design — The unique fuselage shape enables an exceptional breadth of flying styles in one airframe, from stable sport flying through to advanced 3D manoeuvres including harriers and flat spins, something conventional fixed-wing designs simply cannot achieve.
- Twin Brushless Motor System — Two factory-installed brushless outrunner motors deliver an incredible power-to-weight ratio that provides genuine hovering capability and unlimited vertical performance, letting you explore aerobatic possibilities most small RC aircraft cannot match.
- Differential Thrust Control — The dual motor setup offers independent yaw control through differential thrust, enabling advanced aerobatic manoeuvres including flat spins and harrier attitudes that would be impossible with conventional single-motor designs.
- AS3X Stabilisation Technology — Exclusive Artificial Stabilisation–3-aXis technology works continuously in the background to smooth out wind and turbulence effects, delivering a locked-in precision feel that makes the Ultrix fly like a much larger, expertly tuned aircraft.
- Optional SAFE Select Flight Protection — This innovative safety system provides pitch and bank angle envelope limits, automatic self-leveling, and simple switch assignment with zero complex programming required, making it ideal for newer pilots building confidence.
- Spektrum DSMX 2.4GHz Radio System — Industry-leading 2.4GHz spread-spectrum technology with genuine full-range capability ensures rock-solid signal integrity whether you're flying in your back garden or at a busy RC flying field alongside other flyers.
- Real-Time Telemetry Capability — The integrated Spektrum receiver and control unit delivers live flight data including battery voltage, current and more to compatible Spektrum AirWare transmitters, keeping you informed throughout your flight session.
- 3S LiPo Battery Compatibility — Uses readily available and affordable 3S 800–850+mAh LiPo batteries, offering flexibility in choosing battery capacity for shorter, punchier flights or extended endurance depending on your flying session goals.
- Fully Factory-Assembled Airframe — The complete aircraft arrives 100% assembled and tested from the factory with both motors, servos, receiver and ESCs already installed, meaning you're flight-ready in under an hour of final assembly time.
- Extremely Durable EPP Construction — The fully moulded expanded polypropylene airframe absorbs impacts that would damage or destroy traditional balsa aircraft, making it perfect for learning aerobatics and 3D flying without expensive repair costs.
- Optional Nose Wheel Landing Gear — Included in the box, this fixed nose wheel enables smooth-surface taxi, takeoff and landing operations; simply remove it for maximum performance and the simplicity of hand launches with grass landings.
- Optional LED Light Kit Compatible — Install the separately-sold LED light kit to improve visibility during daylight flying sessions and enable night flying operations, extending your flying opportunities throughout the year.
- Scaled-Up Visibility and Wind Handling — The larger 600mm wingspan compared to the UMX version makes the aircraft dramatically easier to track visually in the sky and provides substantially better handling characteristics in moderate wind conditions.
Technical Performance
The Ultrix 600mm represents a significant engineering achievement in compact, high-performance RC aircraft design. The dual brushless outrunner motor system delivers an exceptional power-to-weight ratio that enables genuine hovering capabilities and unlimited vertical climb performance — characteristics normally associated with much larger and heavier aircraft. The twin linear servos provide precise control authority across all three axes, whilst the integrated dual brushless electronic speed controllers manage power delivery with precision and efficiency. The Spektrum receiver features full AS3X gyroscopic stabilisation that continuously corrects for wind and atmospheric turbulence, delivering a solid, locked-in flying feel that builds pilot confidence and enables smoother control inputs. The optional SAFE Select envelope protection system adds an additional layer of security for pilots still developing their skills, with simple one-switch activation and no complicated programming requirements. Construction throughout is based on fully moulded EPP (expanded polypropylene), an engineering material renowned for its durability and impact resistance — the airframe will withstand numerous hard landings and crashes that would write off conventional balsa construction aircraft. The generous 233-gram flying weight (within the 250-gram UK legal limit for unrestricted flying) combines with the powerful twin brushless motors to create an aircraft that feels quick and responsive whilst remaining manageable and predictable for pilots of intermediate skill levels. Battery compatibility with standard 3S 11.1V 800–850+mAh LiPo packs ensures excellent speed capability and flight time flexibility, with battery runtime extending well beyond most comparable ultra-micro designs. The differential thrust system adds genuine control authority for advanced manoeuvres including harrier flight attitudes, knife-edge flight and flat spins — aerobatic capabilities that genuinely expand your flying skill development opportunities.
What's in the Box
- E-flite Ultrix 600mm assembled airframe with full delta wing fuselage
- 2 × Brushless outrunner motors (factory-installed and tested)
- 2 × Linear servo actuators (factory-installed and connected)
- Spektrum receiver with integrated dual brushless ESC speed controllers (factory-installed)
- Optional-use fixed nose wheel landing gear assembly
- Product manual with setup instructions and transmitter binding procedures
What You Need to Complete
- Full-range 5+ channel Spektrum DSMX/DSM2 compatible 2.4GHz transmitter (not included)
- 3S 11.1V 800–850+mAh LiPo battery with IC2 connector, or JST connector plus suitable IC2–JST adapter (sold separately, such as SPMXCA322)
- Compatible LiPo battery charger capable of charging 3S lithium polymer batteries (not included)
Frequently Asked Questions
- Is the E-flite Ultrix 600mm suitable for RC flying beginners? — Yes, absolutely. Whilst the aircraft is capable of advanced 3D aerobatics, the optional-use SAFE Select flight envelope protection system makes it forgiving and stable for newer pilots. The AS3X gyroscopic stabilisation smooths out wind effects automatically, and the automatic self-leveling feature can be activated with a simple transmitter switch to regain straight-and-level flight instantly. The full factory assembly means you focus on learning to fly rather than building complexity. If you're completely new to RC aircraft, we recommend enabling SAFE Select during your initial flights to build confidence.
- What battery does the Ultrix 600mm require? — The aircraft is designed for 3S 11.1V LiPo batteries in the 800–850+mAh capacity range, which are extremely common and affordable at UK RC shops. The recommended batteries feature IC2 connectors; if you have a JST-connector battery, you'll need to purchase a suitable IC2–JST adapter separately (such as SPMXCA322). Larger capacity batteries up to around 1000mAh will fit, giving you flexibility to choose between shorter punchier flights or longer, more relaxed endurance sessions.
- What transmitter do I need for the Ultrix 600mm? — You need a full-range 5+ channel Spektrum DSMX or DSM2 compatible 2.4GHz transmitter. Compatible models include the DXS, DX6e, DX8e, DX6 G2/G3, DX8 G2, DX9, NX6, NX8, NX10, iX12, iX20 and others. If you already own a compatible Spektrum transmitter, simply bind the aircraft's receiver to your existing radio — that's the Bind-N-Fly advantage. The integrated receiver also provides real-time telemetry data to compatible Spektrum AirWare transmitters showing battery voltage and current.
- How does the Ultrix 600mm compare to the original UMX Ultrix? — The Ultrix 600mm is a scaled-up version offering several practical advantages: the larger 600mm wingspan makes the aircraft significantly easier to see in flight, it handles moderate wind considerably better, and it uses more commonly available 3S 800–850+mAh batteries instead of smaller capacity packs. The 600mm version also includes an optional-use fixed nose wheel for smooth-surface operations. Both models share the same innovative delta wing design and capability for sport, aerobatic and 3D flying, but the 600mm offers better visibility, durability and accessibility for most pilots.
- Can I perform 3D aerobatics with the Ultrix 600mm? — Yes, the aircraft is genuinely capable of aggressive 3D flying including harrier attitudes, flat spins, knife-edge flight, and other advanced manoeuvres. The dual brushless motor system with differential thrust control provides the yaw authority needed for these advanced flying styles, and the incredible power-to-weight ratio ensures unlimited vertical performance. The durable EPP construction means you can learn these skills without expensive repair costs when mistakes happen.
- What's the difference between flying with and without the nose wheel? — The included optional-use fixed nose wheel enables smooth-surface taxi, takeoff and landing operations on concrete or tarmac. Simply remove it if you prefer hand-launching from grass areas and landing back down on grass — this removes unnecessary weight and drag, improving vertical performance and maximum speed. Many pilots remove the wheel after the first few flights once they're comfortable with hand launching technique.
- How long does the assembly take out of the box? — Approximately less than one hour. The aircraft arrives 100% factory-assembled with all motors, servos, receiver and speed controllers already installed and tested. You'll simply need to bind the receiver to your transmitter, optionally install or remove the nose wheel as preferred, and you're ready to fly. No soldering, no motor installation, no servo configuration — just fly.
- Does the Ultrix 600mm have telemetry? — Yes. The integrated Spektrum receiver and control unit provides real-time telemetry data including flight battery voltage, current and other power system information to compatible Spektrum AirWare equipped transmitters. This capability helps you monitor battery health during flight and learn optimal battery management practices. Transmitters with AirWare telemetry support include the DX6e, DX8e, DX6 G2/G3, DX8 G2, DX9, NX6, NX8, NX10, iX12 and iX20.
- Is the Ultrix 600mm waterproof? — The EPP airframe is extremely durable and resistant to moisture, but the electronics (receiver, ESCs, servos) are not waterproof. Flying in rain or near water is not recommended. The aircraft is designed for dry-weather operation in fields, parks and RC flying sites.
- What's the flight time I can expect? — Flight time depends on your flying style and battery capacity. Smooth sport flying with an 800mAh battery typically yields 8–12 minutes; aggressive 3D flying with constant high-throttle manoeuvres reduces this to 6–8 minutes. Upgrading to an 850mAh or higher capacity battery extends endurance accordingly. The excellent efficiency of the brushless motor system means you get longer flight times than comparably powered fixed-wing designs.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the EFL Ultrix 600mm BNF Basic A-EFL02250 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
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