The ultimate guide to E-flite UMX Aero Commander: A twin engine masterpiece for RC pilots

The world of RC flying offers many fascinating models, but only a few embody the elegance and performance of a two-engined aircraft as impressive as the E-flite UMX Aero Commander BNF Basic with AS3X (EFLU5850). This remarkable model brings the legendary Aero Commander icon to the world of ultra-micro aircraft and combines impressive flight performances with state-of-the-art stabilization technology. In this detailed article we look at all aspects of this twin engine wonder and provide all the information that potential buyers need.

Technical specifications and delivery

The UMX Aero Commander model presents itself as a semi-scale BNF version (Bind-N-Fly) designed for advanced beginners and intermediate pilots. Here the most important technical data at a glance:

Included in the delivery of Horizon Hobby Flyer are:

• The fully assembled E-flite UMX Aero Commander BNF Basic Plane
• Two E-flite Brushless 180 Outer Motors with 3000Kv
• Four Spectrum 2,3 g Linear Long Throw Servos
• An E-flite AS3X receiver with integrated controller
• User manual

For completion, you also need:

• Full DSMX/DSM2 compatible remote control with at least 4 channels
• A 2S LiPo flight battery with 450-800mAh
• A suitable charger for the flight battery

Performance characteristics and flight characteristics

Brushless dual motor power

The outstanding feature of this twin engine model is undoubtedly the powerful 3000Kv Brushless motors. These provide impressive starting performance and allow the small pilot to perform both precise art flight maneuvers and spectacular vertical flights. The combination of light weight and considerable engine performance gives the model an exceptional performance potential.

AS3X Stabilization Technology

Another highlight of the Aero Commander is the integrated AS3X technology in the receiver. This works in the background and balances the effects of wind and turbulence on the aircraft. The result is a remarkable feeling of stability and precision that gives the impression of controlling a much larger aircraft. This technology contributes significantly to the flight experience and significantly increases control over the model.

Wide speed spectrum

The UMX Aero Commander model impresses with a wide range of speeds. This model offers a wide range of possibilities from leisurely overflights to rapid maneuvers. The long support surfaces with a high lateral ratio provide good sliding properties, while the double motors can provide a proper thrust if required.

Flight experiences and customer reviews

The feedback from pilots who have already gained experience with the small twin is mainly positive. The flight characteristics of the model are particularly praised, with AS3X technology being repeatedly referred to as an outstanding feature.

Handling on the floor and in the air

After binding the aircraft to a compatible spectrum DSM2/DSMX transmitter, the trimming and controls should be carefully checked. All control surfaces generally react appropriately without jamming the linkages. Since the model has neither flaps nor retractable chassis, a simple four-channel transmitter can be used.

The controllable bugrad considerably facilitates maneuvering on the ground. Pilots report that the model can be easily steered on the runway and provides good ground control.

Flight time and performance

Flight times vary depending on the battery and flight style used, but typically range from 5-8 minutes. In the case of retained flight and use of an 800mAh 2S LiPo battery, longer flight times can also be achieved. The battery compartment is surprisingly spacious and can accommodate different battery sizes, which offers a certain flexibility.

The climbing performance is described as impressive, with the two 3000Kv engines providing enough power for art flight maneuvers. Especially in the case of vertical flights, the small two-engineer shows its strengths and conveys a feeling of flight that is not in line with the larger models.

Material quality and processing

The Horizon Hobby Flyer is characterized by high-quality processing. The components are carefully mounted and the materials used correspond to the standard high-quality Ultra Micro models. The model is fully assembled and ready for use, which is particularly advantageous for beginners in the Twin-Engine category.

The surfaces are well painted and the labels are applied in detail. The control linkages are precisely set, but can be fine-adjusted if necessary by making the U-shape narrower or further in order to adapt the linkage length.

Transport and storage

With its compact size, the UMX Aero Commander model is relatively easy to transport. The span of about 71 cm requires a suitable transport container, but compared to larger RC aircraft, the space requirement is moderate. A special transport case or a padded bag is recommended to protect the model from damage.

Since the suspension is removable, the model can be stowed even more space-saving if required. This property makes it particularly attractive for pilots with limited storage space or those who often want to take their model to different airfields.

Spare parts supply and support

The spare parts supply for the E-flite UMX Aero Commander is well covered by the extensive network of Horizon Hobby. Long wear parts such as propellers, motors and servos are easily available. Structural components can also be purchased as needed.

The community around e-flite products is active and helpful. In numerous forums and social media owners of the model exchange experiences, tips and problem solutions. This community support is particularly valuable for newcomers and can help solve specific problems.

Target group and entry barriers

The twin engine is primarily aimed at advanced beginners and mid-experience pilots. Absolute newcomers could be overwhelmed by the two-engine configuration and the art skills, although AS3X technology facilitates entry.

The BNF version (Bind-N-Fly) means that pilots with a compatible remote control can start immediately. There are no complex assembly steps, which further lowers the entry barriers. The user manual is clearly structured and provides sufficient information for quick commissioning.

Comparison with alternatives from competitors

In the dual-engine Ultra-Micro aircraft segment, there are some alternatives to the UMX Aero Commander, which should be taken into account in the purchase decision:

E-flie UMX Twin Otter

The Twin Otter offers similar two-engine flight experiences, but is more focused on scale-realism and less on art flight skills. It has a slightly larger span and is more stable in slow flights, but does not offer the same agility as the Aero Commander.

SingleStar II

As a somewhat larger model, the TwinStar II from Multiplex offers an alternative for pilots who want to go one step beyond the Ultra Micro class. It requires more assembly work, but also offers more adaptability and tends to longer flight times.

FMS Mini P-38 Lightning

This true-scale replica of the famous WWII fighter aircraft also offers a compact twin engine experience. Compared to the Aero Commander, it is more focused on scale-realism and less on art flight skills.

The Horizon Hobby Twin flyer stands out from these alternatives thanks to its combination of performance, AS3X stabilization and art flight capabilities and offers a balanced package for pilots who want to perform both scale flights and more demanding maneuvers.

Value for money

With a price of around 149.99 USD, the UMX Aero Commander is positioned in the middle price segment for high-quality ultra-micro aircraft. Given the performance, dual brushless motors, AS3X technology and high-quality processing, the price-performance ratio can be rated as good to very good.

The investment is particularly worthwhile for pilots who want to venture into two-engine models without having to create a larger and more expensive model. Long-term value maintenance is supported by the good spare parts supply and the brand name.

Tips, tricks and optimizations

Battery optimization and focus

The battery focus plays a decisive role in the flight characteristics. Experiment with different positionings within the spacious battery compartment to find the optimal focus. A slightly head-loaded focus can increase stability, while a more neutral balance improves agility.

It is recommended to have several batteries to extend the flight time at a time. Pay attention to high-quality 2S LiPos with good C rate to exploit the full power potential of the Brushless motors.

Propeller optimization

The standard propellers provide a good balance between thrust and efficiency. For longer flight times, however, you can reach some smaller propellers that consume less power. Conversely, slightly larger propellers can provide more thrust, but also increase power consumption.

Control refinement

The linkages can be adjusted as required to adjust the control sensitivity. In case of too sensitive reactions, it is recommended to reduce the failures in remote control or to use Expo settings that reduce the control sensitivity around the neutral position.

Weather-related adjustments

Despite AS3X technology, the UMX Aero Commander remains a lightweight model that can be influenced by wind. With light wind it is recommended to keep a little more speed and to use gentler control movements. If the wind is stronger, flights should be dispensed with.

Frequent questions and problems of users

Problem: Uneven thrust of engines

Solution: Check both engines for free rotation without blocking. Make sure both propellers are undamaged and have the same type/similar size. In case of ongoing problems, the engines can be individually tested or replaced.

Question: Can I use a 3S LiPo?

Answer: This is not recommended. The model is designed for 2S LiPos (7,4V). A 3S LiPo (11,1V) would overload the electronics and could lead to overheating or damage to the components.

Problem: Model reacts excessively sensitive to tax inputs

Solution: Reduce the dual rate settings in your remote control or add Expo values. Start with about 30% Expo for crossheads and altarpieces. Also check the center of gravity, as a center of gravity lying too far can increase sensitivity.

Question: How long does a fully charged battery last?

Answer: The flight time varies depending on flight style and battery size. With a 450mAh battery you can expect about 4-5 minutes with active flight style. With an 800mAh battery, 7-8 minutes are possible. Gentleer flying with reduced gas lengthens the flight time.

Problem: AS3X system does not seem to work

Solution: Make sure that you have placed the model on a flat surface after switching on so that the AS3X calibration can be performed correctly. The servos should shorten when the system is activated. Also check whether the servos are correctly connected.

Question: Can I start the model on grass?

Answer: The UMX Aero Commander is primarily designed for start and landing on smooth, hard surfaces. Short, very well maintained grass can work, but usually an asphalt or concrete slope is recommended. Alternatively, the model can also be started from the hand.

Problem: A motor does not run when gas is delivered

Solution: Check the cabling to the affected engine. Make sure no cables are damaged and all connections are stuck. Sometimes a propeller can also be blocked. In case of ongoing problems, a replacement of the engine or the controller could be necessary.

Conclusion: An impressive two-engine experience

The E-flite UMX Aero Commander BNF Basic with AS3X is an excellent choice for RC enthusiasts looking for the experience of a two-engined aircraft in a compact, easy to handle format. With its powerful brushless motors, stabilizing AS3X technology and high-quality design, it offers an excellent flight experience for mid-experience pilots.

The combination of scale optics and art skills makes this small twin a versatile model that is suitable for both realistic flights and dynamic maneuvers. Despite some challenges that can be associated with small two-engine aircraft, the well-thought design ensures an accessible and entertaining flight experience.

For pilots who are willing to invest in a high-quality Ultra Micro model and explore the world of twin engine aircraft, the Aero Commander offers a convincing overall package with good value for money. With the right preparation, a few additional batteries and some exercise, this elegant two-engineer will certainly become a favorite in any RC aircraft collection.