E-flite UMX Pitts S-1S BNF Basic with AS3X and SAFE Select: The complete guide

The world of RC flying offers numerous exciting models, but few combine classic design with modern technology as impressive as the E-flite UMX Pitts S-1S BNF Basic with AS3X and SAFE Select. This compact art flight wonder with its 434mm span has established itself as a popular model for beginners and advanced. In this comprehensive article we illuminate all aspects of this fascinating flight model and provide valuable tips for buyers.

Technical data and equipment at a glance

The small double-decker convinces with modern technology and sophisticated design. Here the most important technical data at a glance:

The small semi-trailer comes in the BNF (Bind-N-Fly) Basic version, which means that it is already fully assembled and has to be bound only to a compatible remote control. The flexibility in the drive range is particularly noteworthy: The new brushless external rotor motor is compatible with both 2S and 3S-LiPo batteries, allowing different power profiles.

Customer reviews and reviews

The Pitts S-1S from E-flite has developed an excellent reputation in the RC community. Many pilots particularly appreciate the combination of classic double-decker design and modern flight technology.

Positive feedback

Most buyers praise the excellent flight performance and stability. In particular, AS3X technology is often positively highlighted, as it provides a precise feeling of flight even in light winds. A customer reports: "Even on days with light breeze, the small double-decker flies like on rails - AS3X technology really makes a noticeable difference."

The quality of processing also finds a lot of praise: "For a model of this size class, the faithfulness of detail is impressive, and the construction also keeps smaller accidents amazingly good," reports an experienced pilot.

The SAFE Select function is particularly appreciated by beginners: "As a newbie in the art flight, the switchable flight position limit gives me the necessary security to gradually expand my skills."

Critical aspects

There is sometimes criticism of the battery life, which can sink to less than 5 minutes, especially in aggressive art flight with 3S batteries. Some users also report initial difficulties in binding to older spectrum transmitters.

Another occasionally called point concerns the spare parts supply: "In the case of special parts, longer delivery times can sometimes occur," reports a customer.

Test results and flight performance

In numerous tests, the small double-decker proves its impressive flight characteristics. With 2S batteries, the model shows a good-natured, yet agile flight behavior, which also allows beginners with some experience to enter the world of art flight.

climbing performance and art skills

With a 3S battery, the Pitts S-1S transforms into a regular art flight machine with impressive climbing power. Vertical figures are then infinitely possible, and the model shows its true abilities. Tests confirm an impressive power reserve that easily manages even demanding art flight maneuvers.

When using a 2S-280mAh battery, the power corresponds approximately to the original model, while the 3S-300mAh battery provides significantly more speed and unlimited vertical power. This flexibility makes the model attractive both for beginners and experienced pilots.

Flight times

Flight times vary depending on the battery used and flight style:

• With 2S-280mAh battery: 5-7 minutes on normal flight
• With 3S-300mAh battery: 4-6 minutes, with intense art flight also shorter

Material quality and durability

The advanced EPS material of the UMX Pitts model provides an optimal relationship between weight and stability. The design is robust enough to survive minor accidents, but remains light enough for impressive flight performance.

Particular emphasis should be placed on detail despite the compact size. The true scale reproduction of the iconic Pitts design with authentic colouring makes the model also visually an eye-catcher.

Transportability and handling

As a UMX model (Ultra Micro eXtreme), the Pitts S-1S is ideal for transport. With a span of only 434mm, the model fits in most RC transport bags or even in larger tool cases.

A special advantage: In contrast to larger models, the small double-decker can also be flown to a limited space - a small park or a large meadow are completely sufficient. This makes him the ideal companion for spontaneous flight units.

Spare parts supply and support

Horizon Hobby and E-flite offer a good supply of spare parts. Most common wear parts such as propellers, servos or motor components are readily available. In special parts, longer delivery times may occasionally occur.

Particularly positive: Due to the large distribution of the UMX model series, many parts are standardized and can be exchanged between different models, which facilitates the purchase of spare parts.

Target group and entry barriers

The compact Pitts model is aimed primarily at advanced beginners and experienced pilots. With the SAFE Select technology, however, entry is also possible for ambitious newcomers with first RC flight experiences.

The ideal target group includes:

• RC pilots with pre-experience that want to enter the art flight
• Experienced pilots looking for a portable second model
• Lovers of classic aircraft designs
• Pilots looking for a weather-insensitive model thanks to AS3X technology

Absolute beginners should start with an even more humbled coach model before they switch to this small art flyer.

Construction and installation

As a BNF-Basic model, the aircraft is already fully assembled. The device is limited to connecting the model to remote control and adjusting the control surfaces. This process usually takes no longer than 15-20 minutes.

The included guide is clearly structured and guides less experienced pilots through the setup process. Especially helpful: The guide contains detailed information for the activation and deactivation of the SAFE Select function and recommendations for the optimal control failures.

Community support and online resources

An active community has developed around the E-flite UMX models. In numerous forums, YouTube channels and social media owners find valuable tips and can exchange ideas with like-minded people.

The many video guides on topics such as:

• Optimum adjustment of remote control
• Tips for longer battery life
• Repair instructions for common wear parts
• Flight tips for various art flight maneuvers

This strong community presence offers beginners valuable support and inspiration.

Alternatives and competition comparison

In the compact art flight models segment there are some interesting alternatives to the E-flite UMX Pitts S-1S:

E-flin UMX Turbo Timber

For pilots looking for more versatility, the UMX Turbo Timber offers an interesting counterpart. As a STOL flyer (Short Take-Off and Landing), it offers other flight characteristics, but also has AS3X and SAFE technology. Compared to Pitts, it is less designed for art flight, more for all-round skills.

Horizon Hobby UMX Spacewalker

With its high-decker design, the UMX Spacewalker offers a more stable flight image and is better suited for beginners. However, it offers less art flight potential than the Pitts S-1S and thus addresses a different target group.

FMS Pitts Special V2 800mm

For pilots who prefer a larger model, the FMS Pitts Special with 800mm span represents an interesting alternative. It offers more presence in the sky and longer flight times, but is not so transportable and requires significantly more space for flying.

In a direct comparison, the model described here stands out due to its combination of compactness, performance and proven AS3X technology.

Value for money

The E-flite UMX Pitts S-1S is positioned in the middle price segment for UMX models with a price between 150-180 Euro (depending on the dealer). In view of the technology offered, the high-quality processing and the flight performance, the model offers a very good value for money.

It should be noted that additional costs for remote control (if not available), batteries and charger are added. With two to three flight batteries and a simple charger, another 50-80 euros should be planned.

Tips, tricks and optimizations

Battery optimization

To maximize flight time, recommend experienced pilots:

• Use of high-quality LiPo batteries with low internal resistance
• Watch 2S batteries for models with at least 35C discharge rate
• In 3S operation, ensure sufficient cooling of the engine
• Create multiple batteries to extend the time of flight

Flight style adjustments

Depending on the battery used, different flight styles can be optimized:

• 2S-Akku: Ideal for scale flight and moderate art flight
• 3S battery: Perfect for dynamic art flight and vertical maneuver

Electronic optimizations

For advanced users there are several ways to improve:

• fine tuning of the Expo and Dual Rate settings for more precise art flight
• Adapting the focal position for different flight styles
• Optimization of AS3X reinforcement values for even more precise flight behavior

Mechanical improvements

Some pilots have made the following mechanical optimizations:

• Easy reinforcement of the support surface connection for even more precise flight behavior
• Optimization of rudder deflections for more play-free control
• Mounting small cooling openings for improved engine temperature at 3S operation

Frequent questions and solutions

"My model does not respond to remote control"

This common problem usually has one of three causes:

1. Binding problem: Repeat the binding process according to instructions.
2. Battery problem: Ensure that both the flight battery and the transmitter batteries are sufficiently charged.
3. Compatibility problem: Check if your remote control is DSMX/DSM2 compatible and provides enough channels (min. 5).

"The flight time is shorter than expected"

Short flight times can have various causes:

• Use high quality batteries with recommended capacities
• Reduce aggressive art flight maneuvers that consume a lot of energy
• Check if all moving parts are easy to move and do not clamp
• Make sure the propeller is undamaged

"The model is not flying"

If the model is not flying, you should:

• Adjust the trimming of remote control
• Check and, where appropriate, correct the focus
• Ensure that there are no mechanical damage
• Recalibrate the AS3X function

"How do I activate/deactivate SAFE Select?"

The SAFE Select function can be activated or deactivated during the binding process. The exact procedure is described in the user manual and varies depending on the remote control used.

"What remote control is best suited?"

Spectrum remote controls with at least 5 channels are recommended for optimal results. Popular models are:

• Range DX6e/DX6
• Spectrum NX6/NX8
• Spectrum DX8/DX9

These also offer the possibility to display telemetry data such as the battery voltage in real time.

Conclusion: Who is it worth buying?

The E-flite UMX Pitts S-1S BNF Basic combines classic design with modern technology and offers an excellent flying experience for advanced beginners and experienced pilots. The combination of AS3X stabilization and optional SAFE Select flight aid makes it a versatile model that is suitable for learning art flight figures as well as for demanding maneuvers.

The model is particularly convincing:

• High transportability and fast operational readiness
• Flexible performance adaptation by 2S/3S compatibility
• High quality processing and true to scale design
• Proven electronic components with telemetry function

The purchase is particularly worthwhile for RC pilots who are looking for a compact, powerful art flight model that can be reliably flew even in light winds. The investment pays off due to long-lasting flight fun and versatile applications.

With the right accessories and the tips presented here, the small Pitts S-1S will become a reliable companion, who will be happy even after years and will be able to continuously improve their art skills with the pilot.