E-flite UMX P-51D BL BNF Basic with AS3X (EFLU3350) - The ultimate guide

The world of remote flight models offers something special for every enthusiast. If you are looking for a detailed replica of the iconic P-51D Mustang fighter from World War II, then the compact model of E-flite could be just right for you. In this detailed article we look at all aspects of the E-flite UMX P-51D BL BNF Basic with AS3X technology and help you with your purchase decision.

Technical specifications and facts

Before we go into detail, here is an overview of the most important technical data of the model:

Detailed product description

The Mustang P-51D replica of E-flite impresses with its remarkable attention to detail with a compact size. This Ultra Micro Model (UMX) combines an authentic look with modern flight technology, making it a special experience for RC pilots.

Outstanding features

The small Warbird is equipped with a powerful 3000Kv brushless motor that ensures impressive speed and climbing. The combination with the scale-scattered 4-sheet propeller gives the model not only an authentic look, but also realistic flight characteristics.

A special highlight is the integrated AS3X technology. This works in the background and balances the effects of wind and turbulence, which gives the pilot the feeling of controlling a significantly larger and more stable model. This is particularly valuable in small models such as the UMX Mustang, as these are naturally more susceptible to wind influences.

The detail of the mini-mustang is impressive - from the clear cockpit with a pilot figure to the simulated machine guns and exhaust systems to the fine line lines. The color scheme corresponds to the historical model of the 20th hunting group of the US Army Air Corps.

Customer reviews and reviews

In numerous forums and communities, the compact mustang model is rated primarily positively. The following aspects are particularly highlighted:

Positive experiences

Many users praise the excellent flight characteristics of the small Warbird. The AS3X technology is called "Game-Changer" because it ensures stable flight behavior even in light winds. A customer described it as "how to fly on rails" - an impression that one usually only knows of significantly larger models.

The detail and optics of the model are also often mentioned positively. Despite its small size, E-flite has placed great emphasis on an authentic representation, which is particularly good for military aircraft enthusiasts.

The power of the brushless drive is also praised. With the recommended 2S-LiPo battery, the model offers enough power for impressive climbing flights and speed without having to act too nervous.

Critical notes

Some users report difficulties in very windy conditions. Despite AS3X technology, due to its small size and light weight, the model remains more sensitive to strong wind than larger alternatives.

There are also some comments on the battery life, which is perceived as relatively short with 5-7 minutes in active flight style. Here experienced pilots recommend to purchase several replacement batteries.

Flight behaviour and performance

Flight times

With a recommended 2S 7.4V LiPo battery (200-280mAh), the model typically reaches flight times of 5-7 minutes. This naturally varies according to flight style - aggressive manoeuvres and full-gas packets shorten the flight time accordingly. For longer flight sessions it is therefore recommended to purchase several batteries.

Increased power

The 3000Kv brushless external rotor motor gives the small Mustang an impressive rise. Test reports show that the model can rise almost vertically in full gas - a property that would not be expected in a model of this size class.

Maneuverability

Thanks to the 4-channel control with a large rudder rudder, the mini-mustang is completely fit for art flight. Loopings, rollers, turns and other classic maneuvers are easily possible. The AS3X stabilization ensures precise response behavior and prevents unintentional "smoothing" in narrow curves or in rapid directional changes.

Material and processing quality

The small P-51D Mustang consists mainly of lightweight but robust foam. The processing quality is described by most users as high quality. The painting and decoration are cleanly applied and provide a high-quality impression.

The stable integration of the electronic components is particularly important. Servos and receivers are well protected, which reduces the susceptibility to damage in small crashes.

The detachable suspension is functionally designed and allows both start and landings from the ground and hand start. The steerable rear wheel considerably facilitates rolling on the ground.

Transport and storage

A great advantage of the UMX format is the excellent transport capability. With its compact dimensions, the model fits significantly smaller transport boxes than larger Warbirds. Many users report that they transport the model without disassembly in special foam boxes or even in larger tool cases.

For transport it is recommended to remove the suspension in order to avoid damage. The wings do not have to be disassembled, which significantly accelerates the construction at the airfield.

Spare parts supply

E-flite is known as an established manufacturer in the RC area for good spare parts supply. All important components are available as spare parts for the UMX P-51D model:

• Propellers and spiders
• Chassis components
• Servos and linkages
• Electronic elements
• Rechargeable batteries and chargers
• Decorative elements

The availability in the retail trade is usually good, and even online most parts are easily purchased. This is an important factor for the longevity of the model, as smaller repairs can be carried out themselves.

Target group and entry barriers

The brushless mustang is aimed primarily at advanced beginners to experienced pilots. Absolute RC newcomers could be overwhelmed by the flight characteristics of the Warbird, although AS3X technology significantly contributes to aviation safety.

The model is ideal for:

• Pilots with first experiences looking for a second model
• Experienced RC aircraft that need a compact model for smaller airfields
• Warbird enthusiasts looking for a detailed P-51 in compact size
• Pilots who want to fly in alternating weather conditions (thanks to AS3X)

Construction and preparation

As a BNF (Bind-N-Fly) Basic model, the small mustang is already fully assembled from the packaging. The "building" is limited to:

1. Mounting the optional chassis
2. Loading and inserting the LiPo battery (sold separately)
3. Binding the receiver with a compatible transmitter
4. Check the rudder rudder and trimming

The entire preparation time is less than 15 minutes for experienced pilots. The included guide is generally described as clear and comprehensible, with detailed illustrations and helpful tips for optimal setting.

Community support

An active community has developed around the E-flite UMX models. In numerous forums and social media owners exchange experiences, modifications and tips.

Particular emphasis should be given to:

• YouTube channels with flight tutorials especially for the mini-mustang
• Special subfora in large RC communities
• Facebook groups for UMX models
• Local flight events

This rainy exchange is particularly valuable for beginners who can benefit from the experience of others. In addition, regular meetings are organised where like-minded people perform their models and fly together.

Alternatives and competitive products

In the Ultra Micro-Warbirds segment there are some interesting alternatives to the E-flite UMX P-51D BL BNF Basic:

E-flite UMX P-51D "Detroit Miss" with SAFE Select

A newer version of the Mustang by E-flite itself is the "Detroit Miss" edition. In addition to AS3X technology, this also offers the SAFE Select functionality, which facilitates beginners access through self-leveling properties and inclination limitation. The compatibility with 2S and 3S batteries also allows a wider range of services.

E-flie UMX P-51D Voodoo

For racing aircraft enthusiasts, E-flite offers the "Voodoo" variant with the characteristic racing scheme of the well-known race pattern. This model has a more powerful engine and is compatible with both 2S and 3S batteries, which ensures even more speed. The combination of AS3X and optional SAFE Select is also used here.

Models of other manufacturers

Compared to similar products from other manufacturers, E-flite Mustang scores above all through AS3X technology, which offers a much more stable flight behavior than many competitive products without electronic stabilization. The processing quality and accuracy are also often considered above average.

Value for money

The mustang of E-flite is positioned in the middle price segment for ultra-micro models. The investment is justified by several factors:

• Brushless motor with significantly longer service life than brush motors
• AS3X technology that offers significant added value in flight behavior
• High-quality processing and attention to detail
• Good spare parts supply
• Long-term value stability (E-flite models keep their value relatively good)

It should be noted that additional investments are necessary:

• Compatible remote control (if not available)
• Several LiPo batteries for longer flight sessions
• Suitable charger for the batteries
• Possibly a transport box

Tips, tricks and optimizations

Battery management

To get the best performance from the little Warbird, expert pilots recommend:

• Use of high-quality LiPo batteries with 35C or more
• Precise accentuation by moving the battery
• Marking the optimal battery position with a small sticker
• Acquisition of several identical batteries for uninterrupted flight fun
• Use of a charging board for parallel charging of multiple batteries

Flight technical optimizations

For an even better flight experience, pilots report the following tricks:

• Fine adjustment of the dual rate for more precise handling
• Easily increase the Expo values for gentler control reactions
• Reduction of AS3X sensitivity in very quiet conditions
• Adjustment of the focal point for different flight styles (something more head load for art flight, more neutral for scale flight)

Technical improvements

Some ambitious craftsmen have successfully implemented the following modifications:

• Easy reinforcement of the suspension mount for more robust landings
• Installation of a small FPV camera for cockpit perspective
• Mounting small LED lights for dawn flights
• Exchange of standard servos against even more precise micro servos

Frequent questions and problem solutions

"My Mustang does not respond to the transmitter. What can I do?"

This common problem usually has a simple solution:

1. Check if the transmitter uses compatible DSMX/DSM2 technology
2. Run the binding process again
3. Make sure the battery is fully charged
4. Check if the battery is correctly connected
5. In case of persistent problems, a reset of the receiver might be necessary

"The flight time of my Mustang is very short. Is that normal?"

The typical flight time is 5-7 minutes. To optimize this:

• Use batteries with maximum recommended capacity (280mAh)
• Watch a moderate flight style with less full gas passages
• Check the propeller for damages that could reduce efficiency
• Make sure all moving parts are easy to move

"My model tends strongly to the left/right in the flight. How do I fix it?"

This tendency can have several causes:

• Check the trimming of the rudder
• Check whether cross-rudders and height-rudders are mechanically correctly centered
• Check the center position (to far left or right?)
• Make sure the propeller is properly mounted and undamaged

"Is the Mustang also suitable for flight starters?"

The brushless UMX P-51D with AS3X technology is not ideal for absolute beginners, but thanks to the stabilization significantly more beginner-friendly than many other Warbirds of this size. For beginners it is recommended:

• Collecting first experiences with a humbler coach model
• Alternatively choose the "Detroit Miss" variant with additional SAFE Select technology
• Initially fly only in very quiet wind conditions
• Start with an experienced pilot as a mentor

"How do I transport the Mustang safely to the airfield?"

For safe transport, users recommend:

• Special foam boxes for UMX models
• Alternative: Customized tool case with foam inserts
• decrease of the suspension during transport
• Protection of the propeller with a small rubber band

Conclusion: Who is the Micro-Mustang suitable for?

The E-flite UMX P-51D BL BNF Basic with AS3X (EFLU3350) is an impressive model that combines history, detail and modern flight technology. It is particularly suitable for:

• RC pilots with some pre-experience that are looking for a compact second model
• Warbird enthusiasts with limited space
• Model flyers who do not want to miss out on their hobby even in light winds
• Pilots looking for a transport-friendly model on the go

Thanks to AS3X technology, the small mustang flies significantly more stable than comparable models without electronic stabilization. The brushless motorization ensures impressive performance and long service life.

If you are looking for a detailed model of the legendary P-51D Mustang, which offers an authentic flight experience despite compact size, this E-flite UMX model is an excellent choice with impressive price-performance balance.