Product Details
The E-flite UMX A-10 Thunderbolt II Twin 30mm EDF (Electric Ducted Fan) ultra micro jet is updated and upgraded for more durability and power - while AS3X and optional-use SAFE Select technology make it easier to fly for more pilots in more places!
Key Features
- Spektrum receiver with industry-leading 2.4GHz DSMX technology
- Completely factory-assembled and ready to fly right out of the box
- Strengthened airframe including a carbon fiber reinforced fuselage and nose
- Real-time battery voltage telemetry via compatible Spektrum transmitters
- Fits 450-850mAh LiPo batteries for a wide range of performance and flight times
In The Box - (1) E-flite UMX A-10 Thunderbolt II Twin 30mm EDF with:
- (2) Brushless Outrunner Motors (installed)
- (2) 30mm EDF units (installed)
- (1) Spektrum Receiver with (2) Brushless ESCs (installed)
- (1) Product Manual
Needed to Complete- Full-range 5+ channel Spektrum DSMX compatible transmitter
- 2S 7.4V or 3S 11.1V 450-850mAh 30+C LiPo with IC2 Connector
- Compatible LiPo charger and charge lead
Introduction
The A-10 Thunderbolt II, affectionately called the "Warthog" due to its aggressive look and unique Close Air Support (CAS) capabilities, is one of the most iconic U.S. Air Force aircraft of all time - valued highly for its excellent maneuverability at low speeds and altitude, and for being an accurate and survivable weapons-delivery platform. With its affordable and practical ultra micro size, the updated and upgraded E-flite® UMX™ A-10 Twin 30mm EDF (Electric Ducted Fan) jet now enables more RC pilots to fly an exciting "Hog" replica in more places! It's also more durable and more powerful, with a stronger, carbon-fiber reinforced nose and airframe and a 2S and 3S-compatible power system matched to 30mm fans. This Bind-N-Fly® Basic aircraft comes equipped with exclusive Spektrum™ AS3X® and optional-use SAFE® Select technologies and provides real-time battery voltage telemetry to compatible transmitters, making it easier than ever for more pilots to fly and enjoy.
Features
- Scale replica of the iconic aircraft flown by the U.S. Air Force for Close Air Support and other missions
- The easiest to fly and best handling ultra micro A-10 EDF (Electric Ducted Fan) jet model yet
- Improved vertical performance and speed compared to other ultra micro class EDF models
- More powerful 2S and 3S-compatible outrunner motors with larger diameter 30mm fans
- Fits 450-850mAh LiPo batteries for a wide range of performance and flight times
- Strengthened airframe including a carbon fiber reinforced fuselage and nose
- Real-time battery voltage telemetry via compatible Spektrum™ transmitters
- Spektrum receiver with industry-leading 2.4GHz DSMX® technology
- The unmatched stability and locked-in feel of exclusive AS3X® technology
- Easy to fly with optional-use SAFE® Select flight envelope protection
- Completely factory-assembled and ready to fly right out of the box
- Stronger removable landing gear with steerable nose wheel
- Full 4-channel control with functional dual rudders
- Factory-applied "desert camo" trim scheme finish
Overview
The E-flite® UMX™ A-10 Thunderbolt II Twin 30mm EDF ultra micro jet is the most practical and easiest to fly A-10 RC model yet! New upgrades make this replica of the iconic U.S. Air Force aircraft easier for a wider variety of experienced pilots to enjoy - including those with limited EDF experience. The BNF® Basic model's industry-leading Spektrum™ 2.4GHz technology binds to your 5+ channel DSMX®/DSM2® transmitter for full 4-channel control, plus the benefits of exclusive AS3X® and optional-use SAFE® Select technologies. It's 100% factory-assembled and ready to deliver an authentic A-10 jet flying experience almost immediately. The fully-moulded airframe features a factory-applied "desert camo" trim scheme and is strengthened with a carbon fiber reinforced fuselage and nose. Factory-installed twin brushless power systems feature more powerful 2S and 3S-compatible outrunner motors with larger diameter 30mm fans, for improved vertical performance and speed compared to other models in its class - plus longer-than-average EDF flight times when using the recommended 450-850mAh LiPo batteries. Use the included fixed landing gear with steerable nose wheel to taxi, take off and land on paved, packed dirt or grass surfaces at large parks and fields. Or leave the landing gear off for more speed and vertical performance plus easy over hand launches and landings on grass. With the A-10 Thunderbolt II Twin 30mm EDF, you can start flying your first mission within minutes!
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 familiarising 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 designation: E-flite UMX A-10 Thunderbolt II Twin 30mm EDF BNF Basic
- Model number: EFLU6550
- Aircraft type: Ultra micro electric jet (EDF)
- Scale: Ultra micro / under 250g category
- Wingspan: 562mm (22.12 inches)
- Length: 516mm (20.31 inches)
- Flying weight without battery: 120g (4.2oz)
- Flying weight with 850mAh 3S battery: approximately 192g (6.8oz)
- Wing area: 5.40 square decimetres (83.7 square inches)
- Wing loading: 5.40 sq dm
- Centre of gravity: 1.25–1.34 inches (32–34mm) back from the leading edge of wing at the root
- Power system: Twin brushless electric with 2S/3S compatibility
- Motor type: Brushless outrunner, 8-pole
- Motor KV rating: 8800Kv
- Number of motors: 2
- EDF fan size: 30mm diameter
- Number of EDF units: 2
- Battery type: LiPo (Lithium Polymer)
- Battery cell configuration: 2S 7.4V or 3S 11.1V
- Battery capacity range: 450–850mAh
- Battery discharge rating: Minimum 30C
- Battery connector: IC2 (Spektrum proprietary)
- ESC type: Brushless electronic speed control
- Number of ESCs: 2 (one per motor/fan)
- ESCs installation: Factory pre-installed
- Radio system: Spektrum 2.4GHz DSMX/DSM2
- Receiver type: Spektrum 2.4GHz DSMX
- Radio channels: 5+ channel compatible transmitter required; aircraft provides full 4-channel control
- Radio frequency: 2.4GHz spread spectrum (DSMX)
- Receiver installation: Factory pre-installed
- Control channels: 4-channel with dual rudders
- Servos: Included (factory pre-installed)
- Landing gear: Fixed tricycle type, removable, steerable nose wheel
- Airframe construction: Fully-moulded composite
- Fuselage material: Composite with carbon fibre reinforcement
- Nose material: Composite with carbon fibre reinforcement
- Control surfaces: Ailerons, elevators, dual rudders, throttle control
- Flaps: None
- Trim scheme: Factory-applied desert camouflage
- Technology suite: Spektrum AS3X (Artificial Stabilisation 3-axis)
- Flight envelope protection: Optional-use SAFE Select (toggle-switchable)
- SAFE Select features: Pitch/bank angle limits, automatic self-levelling
- Telemetry: Real-time battery voltage reporting to compatible AirWare-equipped Spektrum transmitters
- Assembly level: Bind-N-Fly Basic (100% factory-assembled, no assembly required)
- Assembly time required: None
- Skill level: 3 (experienced RC pilots)
- Regulatory compliance: Under 250g weight category
- Transmitter required: Full-range 5+ channel Spektrum DSMX/DSM2 compatible (not included)
- Compatible transmitter models: DX6e, DX8e, DX6 G2/G3, DX8 G2, DX9, NX6, NX8, NX10, iX12, iX20 and other AirWare-equipped DSMX/DSM2 models
- Charger required: Compatible LiPo charger with IC2 charge lead (not included)
- Manufacturer: Horizon Hobby (E-flite brand)
Overview
The E-flite UMX A-10 Thunderbolt II Twin 30mm EDF is an exceptional ultra micro electric jet that brings the iconic USAF "Warthog" to life in a practical, affordable format. This updated and upgraded model distils the legendary Close Air Support aircraft into a compact airframe that's perfect for RC enthusiasts looking to experience jet-powered flight without the complexity or expense of larger scale models. Whether you're an experienced RC flyer exploring EDF technology or a seasoned pilot seeking a portable, high-performance jet for your collection, this factory-assembled BNF Basic model offers genuine aeroplane handling with the confidence-inspiring technology of Spektrum AS3X stabilisation and optional SAFE Select flight envelope protection.
The A-10 Thunderbolt II, affectionately known as the "Warthog" due to its aggressive appearance and unique Close Air Support capabilities, is one of the most iconic U.S. Air Force aircraft of all time. Valued highly for its excellent manoeuvrability at low speeds and altitude, it's recognised as an accurate and survivable weapons-delivery platform. Now, with this affordable ultra micro version, more RC pilots across the UK can experience the thrill of flying an exciting "Hog" replica in local parks and airfields. The combination of improved durability, enhanced power delivery, and factory-assembled convenience makes this one of the best-handling UMX A-10 models ever produced.
Every E-flite UMX A-10 Thunderbolt II arrives 100% factory-assembled and ready to fly right out of the box, making it an ideal choice for buyers seeking a ready-to-run RC jet experience. You simply bind the receiver to your compatible Spektrum transmitter, complete your necessary final preparations, and you'll be airborne within minutes. The desert camouflage trim scheme is factory-applied, and all systems—motors, fans, receiver, and ESCs—are pre-installed for immediate enjoyment.
Key Features
- Twin 30mm EDF Units with Brushless Motors — The larger diameter 30mm electric ducted fans paired with powerful 8800Kv brushless outrunner motors deliver improved speed and vertical performance compared to other ultra micro class EDF models, enabling confident climbing and sustained high-speed flight that truly feels authentic.
- 2S and 3S LiPo Compatibility — This versatile power system accepts both 2S 7.4V and 3S 11.1V batteries in the 450–850mAh range with 30C discharge ratings, providing you with flexibility to choose between extended flight times or maximum performance based on your flying style.
- Carbon Fibre-Reinforced Airframe — The strengthened fuselage and nose feature carbon fibre reinforcement, delivering exceptional durability whilst maintaining the lightweight construction essential for responsive handling and extended flight duration in this ultra micro category.
- Spektrum AS3X Stabilisation Technology — This exclusive Spektrum technology works continuously behind the scenes to smooth out the effects of wind and turbulence, delivering a locked-in feel that makes the compact airframe feel like you're flying a much larger, expertly tuned aircraft.
- Optional SAFE Select Flight Envelope Protection — Toggle-switchable from your transmitter, SAFE Select provides pitch and bank angle limits to prevent over-aggressive manoeuvres, combined with automatic self-levelling that instantly returns the aircraft to level flight when the sticks are released, making it the easiest A-10 to fly yet.
- Real-Time Battery Voltage Telemetry — Compatible Spektrum transmitters receive live flight battery voltage data throughout your flight, providing essential confidence and allowing you to manage battery consumption more effectively during your mission.
- Spektrum 2.4GHz DSMX Technology — The factory-installed receiver features industry-leading DSMX spread-spectrum technology, ensuring reliable 5+ channel control with full-range capability and immunity to frequency interference from other RC pilots or electronic equipment.
- Full 4-Channel Control with Dual Rudders — Dual rudder servos provide authentic "Warthog" handling characteristics, enabling the precision yaw control needed for accurate gun runs and manoeuvres whilst maintaining full aileron, elevator, and throttle authority.
- Removable Landing Gear with Steerable Nose Wheel — The stronger fixed tricycle landing gear features a steerable nose wheel and can be completely removed, offering you the choice between authentic gear-down operations on paved or packed surfaces, or lightweight hand launches and grass landings for maximum performance.
- Factory-Applied Desert Camouflage Finish — The scale-accurate "desert camo" trim scheme is factory-applied, instantly delivering authentic USAF A-10 appearance with zero additional painting or finishing work required from you.
- Bind-N-Fly Basic Completion Level — All flight systems are pre-installed and factory-assembled; you simply bind the receiver to your existing compatible Spektrum DSMX transmitter and you're ready to fly, eliminating assembly time and radio compatibility uncertainty.
Technical Performance
The E-flite UMX A-10 Thunderbolt II represents a significant engineering achievement in the ultra micro EDF category. At just 120 grams without battery (well under the 250g regulatory threshold in many regions), this aircraft delivers surprising performance through twin brushless 8800Kv outrunner motors driving larger diameter 30mm EDFs. The airframe spans 562mm and measures 516mm in length, providing authentic scale proportions whilst remaining highly portable. Construction utilises fully-moulded composite materials with strategic carbon fibre reinforcement on the fuselage and nose, striking the critical balance between strength and weight. The wing loading of 5.40 square decimetres (83.7 square inches) produces excellent low-speed handling characteristics combined with respectable speed capabilities when powered by 3S batteries. The factory-installed power system accommodates 2S 7.4V or 3S 11.1V LiPo batteries in the 450–850mAh capacity range with 30C minimum discharge ratings; a fully-charged 850mAh 3S pack delivers approximately 192 grams total flying weight, resulting in highly responsive control and vertical performance. The Spektrum receiver incorporates two brushless ESCs managing motor and fan speed simultaneously, whilst real-time telemetry integration with compatible transmitters provides live flight data monitoring. Centre of gravity is precisely specified at 1.25–1.34 inches (32–34mm) back from the wing leading edge at root, ensuring predictable handling characteristics from the moment of launch.
What's in the Box
- E-flite UMX A-10 Thunderbolt II Twin 30mm EDF (100% factory-assembled)
- Two brushless outrunner motors (8800Kv, 8-pole, pre-installed)
- Two 30mm EDF units (pre-installed)
- Spektrum 2.4GHz DSMX receiver with two brushless ESCs (pre-installed)
- Product manual
What You Need to Complete
- Full-range 5+ channel Spektrum DSMX/DSM2 compatible transmitter (2.4GHz) — compatible models include DX6e, DX8e, DX6 G2/G3, DX8 G2, DX9, NX6, NX8, NX10, iX12 and iX20
- 2S 7.4V or 3S 11.1V 450–850mAh 30+C LiPo battery with IC2 connector (sold separately; note that Spektrum IC2 connectors are not compatible with EC2 connectors)
- Compatible LiPo charger with IC2 charge lead — for G2 compatible chargers, the SPMXCA320 IC2-IC3 adapter may be required
Frequently Asked Questions
- Is the E-flite UMX A-10 Thunderbolt II suitable for beginners to EDF flying? — Yes, absolutely. This is described as "the easiest-to-fly, best-handling UMX A-10 yet." The combination of AS3X stabilisation and optional-use SAFE Select makes it exceptionally forgiving for pilots new to EDF jets. SAFE Select can be toggled from your transmitter switch to provide pitch/bank angle limits and automatic self-levelling, giving you confidence whilst you develop your jet flying skills. However, you should already be an experienced RC pilot with a compatible Spektrum transmitter; this is a Skill Level 3 aircraft.
- What battery does the UMX A-10 need and how long will it fly? — The aircraft accepts 2S 7.4V or 3S 11.1V LiPo batteries in the 450–850mAh capacity range with minimum 30C discharge ratings and IC2 connectors. A recommended 850mAh 3S battery provides longer-than-average flight times for EDF models in this class, whilst 450mAh packs offer lighter weight and snappier handling. Flight time varies based on battery capacity and your flying style, but typical missions range from 7–12 minutes.
- Will this bind to my existing Spektrum transmitter? — Yes, provided your transmitter is a full-range 5+ channel DSMX or DSM2 compatible 2.4GHz model. Compatible transmitters include the DX6e, DX8e, DX6 G2/G3, DX8 G2, DX9, NX6, NX8, NX10, iX12 and iX20. If you have a different Spektrum model, check that it's DSMX-equipped (the transmitter will display "DSMX" on the front). The aircraft does not require a "smart" transmitter or smart battery to function normally; telemetry features are optional and work only with AirWare-equipped DSMX/DSM2 transmitters.
- What's the difference between this and previous UMX A-10 models? — This updated version features larger diameter 30mm EDFs compared to previous 28mm models, delivering improved speed and vertical performance. The airframe is strengthened with carbon fibre reinforcement on the fuselage and nose for enhanced durability. The power system is now 2S and 3S compatible (previous models were primarily 2S), enabling better performance whilst maintaining battery compatibility flexibility. The landing gear is redesigned to be stronger and removable. Combined, these upgrades make this the most durable and highest-performing UMX A-10 variant available.
- Can I remove the landing gear for hand launches? — Yes, the landing gear is completely removable. Hand-launching from grass with the gear removed provides maximum speed and vertical performance. Alternatively, the stronger fixed tricycle landing gear with steerable nose wheel allows realistic taxiing and operations from paved surfaces, packed dirt, or grass airfields in large parks and fields.
- Is this aircraft under the 250g weight limit for regulations? — Yes, at 120 grams without battery, the UMX A-10 is well below the 250 gram threshold. Even with a fully-charged 850mAh 3S battery installed, total flying weight reaches only approximately 192 grams, keeping it significantly under regulatory limits in most regions.
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 UMX A-10 Thunderbolt II 30mm EDF BNF Basic A-EFLU6550 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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