Overview
The E-flite UMX Air Tractor is an authentic ultra-micro recreation of the legendary Texas-built agricultural utility aircraft, engineered for intermediate to experienced RC pilots seeking scale authenticity combined with modern flight assistance technology. This ready-to-fly RC aeroplane delivers the perfect balance of realistic flying characteristics and practical manoeuvrability, making it an exceptional choice whether you're stepping into scale aviation for the first time or adding a versatile low-wing model to your existing fleet. Finished in the iconic high-visibility yellow and blue livery with moulded-in panel lines and rivet detailing, this brushless RC plane stands out at any flying field whilst remaining compact enough to operate from confined spaces where larger models simply cannot fly.
At just 169 grams fully equipped with a 3S battery, the UMX Air Tractor sits in that sweet spot between genuine scale presence and ultra-practical portability. The factory-assembled airframe arrives 100 per cent ready to bind to your Spektrum transmitter, eliminating tedious assembly whilst maintaining the quality and precision engineering you'd expect from E-flite. Whether you're searching for a beginner-friendly scale plane, a versatile sport flying platform, or an aerobatic-capable model that punches above its weight, this brushless electric RC aircraft delivers exceptional value and performance in one package.
Powered by exclusive Spektrum AS3X stabilisation and optional SAFE Select flight envelope protection, the UMX Air Tractor removes the anxiety from learning scale flying techniques. The 2S and 3S compatible brushless power system provides flexibility from docile, fuel-efficient cruising to unlimited vertical performance without modifications, whilst functional flaps enable genuine STOL (Short Take Off and Landing) operations. Add factory-fitted LED landing, navigation and strobe lights, oversized tundra-style tyres, and a durable EPS foam airframe, and you have a remarkably capable aircraft that handles paved surfaces, grass, gravel and dirt with equal confidence.
Key Features
- Scale Replica Design — Authentically modelled after the real Air Tractor agricultural aircraft with moulded-in panel lines, rivet detail and factory-applied high-visibility yellow and blue paint scheme, delivering genuine scale aesthetics that turn heads at the flying field without compromising practical performance.
- Ultra-Micro Size for Versatile Flying Locations — At 702mm wingspan and 451mm length, the UMX Air Tractor is small enough to operate safely from gardens, parks, sports fields and other confined spaces where full-size RC aeroplanes cannot fly, whilst remaining large enough to feel and fly like a real aircraft.
- Spektrum AS3X Stabilisation Technology — Industry-leading artificial stabilisation works invisibly behind the scenes to smooth wind and turbulence effects, delivering a locked-in feel that makes the model seem much larger and more stable than its compact size suggests, perfect for intermediate pilots gaining confidence in scale flying.
- Optional SAFE Select Flight Envelope Protection — Assignable via a single transmitter switch with no programming required, SAFE Select provides pitch and bank angle limits plus automatic self-levelling, making it ideal for pilots new to scale or low-wing aircraft or those who want an extra safety margin when familiarising themselves with the model.
- Functional Flaps for STOL Operations — Factory-installed and fully operational flaps dramatically improve slow-speed handling and enable authentic Short Take Off and Landing performance, allowing you to operate from shorter grass strips and confined spaces unavailable to conventional RC planes.
- 2S and 3S Compatible Brushless Power System — The factory-tuned 1208 brushless motor with 2150Kv rating and integrated ESC accept both 2S and 3S LiPo batteries without modification, delivering mild cruising performance on 2S or explosive aerobatic power and unlimited vertical on 3S from the same aircraft.
- Factory-Installed LED Lighting System — Realistic-looking LED landing, navigation and strobe lights are powered directly from the flight battery and factory-fitted, providing authentic scale appearance during twilight flying and improving visibility and safety during daytime operations.
- Oversized Tundra-Style Tyres — Large, cushioned tyres with excellent ground clearance handle a surprising variety of surfaces including grass, gravel paths, dirt trails and paved runways, plus they absorb landing impacts that would damage wheels on smaller models.
- Real-Time Battery Voltage Telemetry — When paired with compatible Spektrum AirWare transmitters (DX6e, DX8e, DX6 G2/G3, DX8 G2, DX9, NX6, NX8, NX10, iX12, iX14, iX20 and others), live battery voltage information displays throughout your flight so you never fly until the battery is depleted.
- 100 Per Cent Factory-Assembled BNF Basic — The airframe arrives fully painted, electronics installed, and systems tested, requiring only binding to your transmitter before flying; no gluing, soldering, servo installation or complexity — just unbox, bind and fly.
- Durable EPS Foam Airframe — Advanced expanded polystyrene construction provides a lightweight yet impact-resistant fuselage that withstands the rigours of learning to fly a scale low-wing aircraft; replacement parts are readily available should damage occur.
- 2.4GHz Spektrum DSMX Receiver Technology — The integrated receiver uses industry-leading 2.4GHz frequency hopping, providing interference-free range and binding compatibility with any 6-channel or higher Spektrum DSMX or DSM2 transmitter, including budget-friendly options.
Technical Performance
The E-flite UMX Air Tractor demonstrates impressive engineering for an aircraft of its size and weight class. The airframe employs advanced EPS foam construction, delivering a chassis that is simultaneously lightweight at 169 grams with a fully charged 3S battery installed, yet robust enough to tolerate the impacts and stresses of learning to pilot a scale low-wing model. The 1208 brushless motor with 2150Kv rating drives a three-blade 120mm × 70mm propeller, providing factory-tuned performance that scales perfectly across the 2S to 3S battery range. On 2S 7.4V batteries (280–300mAh capacity), the motor delivers realistic cruise performance whilst maximising flight duration, ideal for smoothly polished flying and learning techniques. Switch to a 3S 11.1V battery of the same capacity and the same motor transforms the aircraft into a sport-capable performer with unlimited vertical potential and significantly increased thrust, all without modification to the motor, ESC or propeller — a genuine engineering advantage that other aircraft in this class cannot match. The integrated Spektrum control unit combines receiver and brushless ESC in a single factory-installed component, simplifying the electronics whilst delivering the reliability and performance that Spektrum is renowned for. Five factory-installed Spektrum linear servos handle wing and control surface actuation with smooth, precise movements. The 702mm wingspan and 451mm fuselage length position the UMX Air Tractor perfectly for operations from confined spaces and smaller flying fields, whilst maintaining the dimensional fidelity necessary for authentic scale appearance and realistic flight characteristics. The oversized tundra-style tyres with excellent prop clearance enable operation from diverse surfaces — paved, gravel, dirt and even some grass areas — that would ground most ultra-micro aircraft. The JST-RCY battery connector ensures secure power connections whilst the integrated Spektrum receiver accepts real-time telemetry transmission to compatible Spektrum AirWare transmitters, allowing live monitoring of flight battery voltage throughout your flight. Whether you're seeking a first brushless RC aeroplane, a capable scale platform, or a versatile sport flying machine, the technical specification and engineering quality of the UMX Air Tractor delivers genuine performance and reliability.
What's in the Box
- E-flite UMX Air Tractor airframe (fully factory-assembled, painted and tested)
- Five Spektrum linear servos (factory-installed)
- Spektrum brushless outrunner motor, 1208 size, 2150Kv (factory-installed)
- Spektrum control unit with integrated receiver and brushless ESC (factory-installed)
- UMX Air Tractor BNF Basic instruction manual
What You Need to Complete
- Full-range 6+ channel Spektrum DSMX or DSM2 compatible transmitter (sold separately) — suggested compatible models include DX6e, DX8e, DX6 G2, DX6 G3, DX8 G2, DX9, NX6, NX8, NX10, iX12, iX14 and iX20
- 2S 7.4V or 3S 11.1V LiPo battery with 280–300mAh capacity and JST-RCY connector (sold separately) — alternatively, JST-PH connector batteries may be used with a suitable JST-RCY to JST-PH adapter such as SPMXCA327
- Compatible LiPo battery charger (sold separately)
Frequently Asked Questions
- Is the E-flite UMX Air Tractor suitable for beginners learning to fly RC aeroplanes? — The UMX Air Tractor is rated as a Skill Level 3 intermediate model, meaning it is not recommended as an absolute first aircraft for someone with zero RC experience. However, it is exceptionally beginner-friendly for intermediate pilots or those transitioning from trainer-class models to scale flying. The optional SAFE Select flight envelope protection removes significant anxiety by automatically preventing excessive pitch and bank angles whilst providing automatic self-levelling when you release the transmitter sticks, making it much easier to learn scale flying techniques. The AS3X stabilisation works invisibly to smooth wind and turbulence, delivering far more stability than many other aircraft in this size class.
- What batteries does the UMX Air Tractor require and what flight time should I expect? — The aircraft accepts 2S 7.4V or 3S 11.1V LiPo batteries with 280–300mAh capacity and JST-RCY connectors. The factory-tuned power system provides flexible performance: 2S batteries deliver slower, more economical cruise flight for maximum battery life, whilst 3S batteries provide significantly greater thrust for sport flying and aerobatics. The lightweight airframe and efficient motor mean respectable flight times are possible even with modest battery capacities, though specific flight time figures should be requested from RC Model Shop or your supplier.
- What size transmitter do I need and will my existing radio work with this aircraft? — The UMX Air Tractor requires a full-range, 6-channel or higher Spektrum DSMX or DSM2 compatible transmitter. If you already own any Spektrum 2.4GHz radio with 6 or more channels, it will work with this aircraft. Suggested compatible models include the budget-friendly DX6e and DX8e entry-level radios, or the more advanced DX6 G2, DX6 G3, DX8 G2 and DX9. The NX6, NX8, NX10 and iX12, iX14, iX20 systems are also compatible. If you do not own a Spektrum transmitter, RC Model Shop can advise on suitable options from entry-level to advanced models.
- What is the difference between this BNF Basic model and other variants, and is BNF Basic the right choice for me? — BNF stands for Bind-N-Fly, meaning the aircraft arrives with all electronics factory-installed and requiring only binding to your existing transmitter before flying. This is ideal if you already own a compatible Spektrum radio. The Basic specification means it includes the receiver, ESC and motor but no transmitter, battery or charger — all of which must be purchased separately. This represents significant cost savings if you already have compatible equipment. E-flite also produces RTF (Ready-To-Fly) variants that include a basic transmitter, battery and charger, better suited to those starting fresh in the hobby without existing equipment.
- Can I really fly this ultra-micro aeroplane from my garden or small park, and what surfaces can it operate from? — Yes, the 702mm wingspan makes the UMX Air Tractor genuinely practical for flying in confined spaces where larger RC models create safety concerns. The oversized tundra-style tyres enable operation from paved surfaces, grass, gravel paths and dirt areas, with excellent prop clearance for rough field operations. Many pilots successfully fly this aircraft from back gardens, small parks, sports fields and school playgrounds. However, you must always adhere to local flight regulations and obtain appropriate permissions before flying in public spaces.
- What is AS3X and SAFE Select, and do I need to understand them to fly this aircraft? — AS3X (Artificial Stabilisation–3-aXis) is Spektrum's proprietary technology that continuously monitors aircraft pitch, roll and yaw via internal gyroscopes, automatically applying corrective inputs to smooth wind and turbulence effects. You don't need to understand it to benefit from it — it simply makes the aircraft feel more stable and easier to fly. SAFE Select is an optional-use flight envelope protection system that can be turned on via a transmitter switch. When enabled, it prevents excessive pitch and bank angles and provides automatic self-levelling when you centre the sticks, making it especially valuable when learning scale flying. Neither system requires any programming or complex setup; SAFE Select is automatically assigned to channel 5 (typically the Gear switch) on compatible transmitters.
- What happens if I crash and damage the airframe or components, and are replacement parts available? — The E-flite UMX Air Tractor is constructed from durable EPS foam, and minor damage can often be repaired with foam-safe adhesives. More substantial damage to fuselage sections, control surfaces or major components can be addressed with replacement parts, which are readily available through RC Model Shop and authorised E-flite dealers. Spektrum servos, motors and ESCs are also stocked as individual replacements, allowing cost-effective repair of damaged or worn components rather than replacement of the entire aircraft.
- How is the UMX Air Tractor different from larger scale RC aeroplanes, and what unique capabilities does it offer? — The primary advantage of the UMX Air Tractor over full-size scale models is its compact size, making it operable in spaces where larger aircraft are impractical or dangerous. Despite its ultra-micro dimensions, it retains authentic scale appearance, functional flaps for STOL performance, factory-installed LED lighting, and genuine aerobatic capability. The weight under 250 grams means it remains within extremely restrictive regulations in many jurisdictions, though you should verify local requirements. The 2S and 3S power system flexibility is uncommon in aircraft of this size class, and the combination of AS3X and optional SAFE Select technologies provides assistance that larger models typically require expensive aftermarket flight controllers to achieve.
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 Air Tractor BNF Basic with AS3X and SAFE Select A-EFLU16450 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.
