E-flite UMX WACO BNF Basic with AS3X and SAFE Select, White (EFLU53550)

Comprehensive guide: E-flite UMX WACO BNF Basic with AS3X and SAFE Select, White (EFLU53550)

The market for RC models offers a wide range of aircraft – the UMX WACO model by E-flite is a special feature that combines both nostalgic-inspired optics and state-of-the-art technology in the narrowest space. The following article provides a comprehensive overview of buyers, highlights all aspects from technology to community support and gives valuable tips for optimal operation.


Technical data & facts

Below you will find all important technical specifications of the white version clearly in table form:

CharacteristicsValue
Product nameE-flite UMX WACO BNF Basic, white
Article numberEFLU53550
Range550 mm
Length418 mm
Weightapprox. 124 g
Weightabout 101 g
MaterialEPS foam (light & robust)
EngineBrushless Outrunner (2S & 3S compatible)
Battery recommendation2S 280 mAh or 3S 300 mAh LiPo
Control4-channel (cross, height, side, motor)
Recipient typeSpectrum DSMX/DSM2
Telemetryyes (air battery voltage)
Flight stabilisationAS3X & SAFE Select
Assembly state100% preassembled (BNF)
ColoursWhite (unpainted), Yellow (painted)
Target groupAdvanced, ambitious beginners

Customer reviews & experiences

E-flite UMX WACO users consistently praise agile flight behavior and impressive performance despite its compact size. Particular emphasis is placed on the realistic flight picture, which convinces by the biplan typical contour and the low weight. Many pilots report that the flyer is also suitable for less experienced RC pilots due to the optional SAFE Select system, as the aircraft is stabilized in this setting and automatically returns to the horizontal flight.

In addition, the high-quality processing and factory assembly are particularly positive: Anyone who has built up a conventional kit knows how much time and effort can cost it. Here, however, you can find the model of the packaging, bind it to your remote control – and can start within minutes.

The material is also described as resistant: crashes in beginner operation or rempler during landing rarely cause serious damage, small flaws can easily be repaired. Some users are critical of the price in the high-end micro range. However, in the opinion of many users, technology, aeronautics and the faithfulness of detail justify the investment.


Test results and flight impressions

Independent test reports underline the practicality of the model. Above all, the combination of AS3X stabilization (against wind and turbulence influences) and the switchable SAFE Select mode, the UMX WACO lifts off from many competitors. In the flight, the model convinces both in the case of slow over-flights and in the case of fleety manoeuvres, an impressive rise being realized precisely when using a 3S battery.

The Brushless drive is powerful, the model has enough power for vertical climbing flights and can easily with most parking fans of this class. In the test, it is also stressed how pleasantly calm the flight picture remains even in windy conditions – a clear advantage of AS3X technology.


Material quality – Robustness in everyday life

The EPS foam material used combines low weight with an amazing robustness for micro models. Collisions or hard landings, the model usually projects with small blessurs, which can be easily repaired with a drop of foam adhesive. The detailing on the hull and on the wing struts is extremely good for this price class and size.


Flight times in practice test

The realistic flight time depends significantly on the battery used and its own flight style. With a 2S 280 mAh LiPo, typical flight times of 5-6 minutes are possible, with moderate gas setting. If you access the 3S 300 mAh battery and retrieve frequent performance, you will arrive at about 4–5 minutes of flight time. For longer flight days, the purchase of several batteries is recommended to be on the move with only short charging breaks.


Increased power – Much power in little space

With the factory-installed Brushless drive and the possibility to use a 3S battery, spectacular climbing flights are possible. In the test, the model even lifts vertically without any problems, without significantly losing speed. Art flight manoeuvres such as loopings, rolls or fast turns are also possible from the stand and make the e-flite biplane a real fun device for advanced riders.


Transport and mobility

The compact dimensions predestine the model for mobile use: The UMX WACO fits easily on the rear seat or the glove compartment of a vehicle. The fixed suspension legs and stable surface screwing make safe transport easy – the model does not have to be disassembled. Ideal for fast use on the meadow, in the park or in the hall.


Spare parts supply – How does it look in case of damage?

As a brand product of one of the leading manufacturers on the market, the spare parts supply is ensured. Wings, guides, suspensions and drive components are available individually. There are also numerous providers on the Internet that can supply spare parts in a timely manner. The uncomplicated repairability of the EPS foam also allows small repairs directly at the airfield.


Audience – Who is the UMX WACO suitable for?

The model is aimed primarily at ambitious beginners and advanced users who value a handy and powerful aircraft. Thanks to advanced stabilization, the aircraft can also be safely flown by more experienced newcomers. Those who have already gained first experience with handy RC models and now want to experience the performance and flight image of a classic double-decker are right here. Professionals particularly appreciate the agility and the versatile range of applications.


Construction & Guidance

The E-flite UMX WACO is delivered to 100% ready-to-air mounted (BNF concept – Bind and Fly). Only the surfaces are readjusted, the battery is used and the model is bound with its own remote control. The guide (multilingual – also in German) is clearly structured and leads step by step through the commissioning, binding and calibration of the safety systems. Overall, the structure together with binding and control of the rudder functions usually requires less than 20 minutes.


Community & Support

The e-flite models enjoy a big fan community worldwide. In forums, Facebook groups or specialized websites you can find quick help with questions about setting, repair or accessories. Many experiences and tips are shared by long-term users. The customer service of E-flite and numerous dealers are also supported in technical problems or spare parts requests.


Alternatives – comparison with other products

Market companions also offer ultra-compact double-decker models and parking flyers. Here is a comparison of some popular models:

ModelRangeRange of applicationsStabilizationMotorisationSpecial features
E-flin UMX WACO BNF550 mmindoor/outdoorAS3X + SAFE Select2S/3S BrushlessBind & Fly, Telemetry
FMS Pitts V2400 mmindoor/outdoorGyro stabilisation2S BrushlessEasy, beginners-friendly
E-flin UMX Pitts S-1S419 mmindoor/outdoorAS3X2S BrushlessVery agile, smaller span
HobbyZone Duet523 mmIndoorNoneBrushedBeginners, no art flight

In a direct comparison, the E-flite WACO scores with the combination of optional SAFE Select stabilization, advanced telemetry and exceptionally good motorization for this size class. Ambient pilots who value versatile flight characteristics and long-lasting technology find a powerful overall package here.


Value for money

Located in the upper price segment for micro-models, the value for money is still to be assessed as good. According to many users, innovative electronics, precise pre-production and detailed optics justify the purchase price. If you are looking for performance and stability in a compact format, you are investing in long-lasting air joy.


Tips, tricks & optimizations

  • Battery selection: Use high-quality LiPos to retrieve full performance and protect electronics. Upgrade to 3S allows spectacular climbs, but requires even more sensitive control.
  • Practice landings: Since the flyer is light, the training of gentle landings, especially on rough ground or in the hall is recommended.
  • Priority: Regularly check the focus, especially for other battery formats or after repairs. Small shifts can significantly influence the flight behavior.
  • Balance rudder paths: If you want an art flight or fast response, you can increase the row – for beginners, a reduction to 50–70 % is recommended.
  • have repair kit parat: A drop of suitable foam adhesive as well as some tape should not be missing in any flying box.
  • Firmware updates: Check if your remote control/firmware is up to date to benefit from all functions and telemetry options.

Frequent questions & problems – and their solutions

Question 1: Why does the aircraft not bind with my spectrum remote control?
Answer: Check if your remote control is DSMX/DSM2 compatible and follow the binding instructions. Use the connector correctly, then connect the battery and start the binding. If necessary, put the model closer to the transmitter.

Question 2: The model vibrates or reacts delayed – what can this be?
Answer: Check the propeller assembly and the rudder steering on fixed seat. Recalibrate the rudder over the trimming. A fresh battery often solves delay problems.

Question 3: Plane moves to the left/right when starting – what to do?
Answer: Set the rudder neutral, check the cross-rudder trim and, if necessary, easily compensate. Activate SAFE mode to ensure a straight start.

Question 4: How can I increase flight time?
Answer: Use multiple batteries – save on flight style, e.g. schedule fewer full gas phases. Charge batteries in time and not deep discharge.

Question 5: Where do I get spare parts?
Answer: Directly at the specialist dealer, via e-flite or numerous RC shops online. Typical spare parts are stored and exchanged with few handles.

Question 6: Is the model also suitable for indoor flight?
Answer: Yes, the low weight and the compact size are ideal for the sports hall. Be careful with low ceilings and tight spaces!


Other interesting aspects for buyers

In addition to the technical fines, the product also convinces with an attractive design that recalls classic double-decker era. The possibility to acquire the model in different color schemes speaks both purists and individualists. The seamless integration of modern remote control technology, including telemetry, makes the pilot sustainable and facilitates monitoring during flight.

The modular design allows quick repairs and the unproblematic retrofitting of components (e.g. propellers, control horns). If you like to shoot videos, you can experiment with small action cams – the load capacity is sufficient for light additional loads.


Conclusion: For whom is the model worth?

The E-flite UMX WACO is the perfect choice for those who want to experience the flight feeling of classic biplanes without giving up modern technology and flight stability. The exceptional combination of flight comfort, performance and design clearly distinguishes this model from the competition and makes it the highlight of any RC fleet. Those who are looking for an immediately ready-to-use, fun and at the same time demanding flyer in micro format will be thrilled here.

Bind-N-Fly Basic
2S,3S
EPS
Elektrisch
16.45" (418 mm)
4.2oz (119g) with Recommended Battery
21.65" (550 mm)