The ultimate guide for the E-flite Viper 64mm EDF Jet BNF Basic with AS3X+ and SAFE Select

The E-flite Viper 64mm EDF Jet BNF Basic is a remarkable option for model flight enthusiasts looking for the exciting experience of a jet flight without having to cope with the complex handling characteristics of traditional EDF jets. This model combines impressive flight performances with surprisingly good-natured flight characteristics and state-of-the-art stabilization technology. In this comprehensive guide, we will examine all aspects of this fascinating flight model, from technical specifications to flight characteristics to experience reports and comparisons with competing products.

Technical specifications and characteristics

The Horizon Hobby Jet convinces with its sophisticated design and impressive technical data that make it a versatile aircraft:

The Viper EDF Jet from E-flite is characterized by its optimized channel guidance that delivers exceptionally efficient performance without "true holes". The 11-sheet 64mm fan ensures excellent top speed and vertical performance, coupled with a turbine-like sound that makes the flight experience even more authentic.

Flight characteristics and performance characteristics

handling and flight characteristics

The electric-implifier jet offers a remarkable balance between sporty handling and real jet performance. Like his great role model, the ViperJet, this model delivers the appearance and performance of a combat jet, but combined with the handling of a low-deck propeller aircraft. This unique combination makes the jet accessible to a wider range of pilots.

What really distinguishes this model is the ease with which it can be started or landed by hand. This is especially valuable for pilots who have so far little experience with EDF jets. The flight characteristics are exceptionally good-natured for a model of this class, which greatly facilitates entry into the world of EDF jets.

Speed range and vertical power

The compact sports jet offers an extremely wide performance range and speed range, including class-leading top speeds. The aerodynamic design combined with the powerful drive system allows impressive vertical maneuvers and art flight figures. The landing flaps installed on the factory also improve the slow flight properties and enable shorter starting and landing routes.

Range and flight times

With a recommended 4S LiPo battery in the range of 2200-3200mAh, pilots can expect flight times of about 4-6 minutes depending on flight style and battery capacity. With moderate flight style with the predominant use of the middle performance ranges, it is possible to achieve longer flight times, while aggressive art flight or persistent high-speed passages can understandably shorten flight time.

Stabilisation technology and avionics

AS3X+ and SAFE Select

The BNF Basic version of this Horizon Hobby Jet is equipped with the exclusive technologies AS3X+ and SAFE Select. AS3X+ (Artificial Stabilization - 3-Axis) works in the background to correct unwanted effects of wind and turbulence, which leads to a more precise and more natural feeling of flight.

SAFE Select offers additional stabilisation functions that are particularly valuable for less experienced pilots. This technology can be activated if required and offers:

• Self-leveling when releasing the control billets
• Adjustment angle and roll rate limitation
• panic recovery mode

These functions can be activated or deactivated during the binding process so that pilots can adapt the support to their capabilities.

Telemetry capabilities

A special highlight of this model is the range Avian Smart Lite ESC with 70 amperes. This controller provides real-time telemetry data to the drive system, including total battery voltage, power consumption, engine speed and more - both with smart and with conventional batteries. These data are transmitted via compatible receivers (such as the AR631) and spectrum AirWare-equipped transmitters.

It is also particularly practical that the receiver is equipped with a smart sender model file, which makes it possible to import all settings for NX and iX transmitters during the binding process, which considerably simplifies the device.

Construction and assembly

Construction and preparation

One of the biggest strengths of this E-flite model is easy and fast assembly. No adhesive is required for assembly, and the model can be ready to fly in less time than it takes to charge a battery. The one-piece wing with free-hand servo connections makes installation and disassembly considerably easier.

The digital servos are already installed on the factory and equipped with ball joints, which ensure precise and fast control at any speed. The large and comfortable upper fuselage cover with clear cabin hood, cockpit details and pilot figure not only increases realism, but also facilitates access to components inside.

Transport capacity

The Viper 64mm EDF Jet has been developed with practical handling and transport. With its compact size (width 1072 mm, length 932 mm), it fits easily into most model transport bags or the trunk of an average car.

It is particularly practical that no tools are required to remove the suspension, which improves speed and vertical performance when flying over grass. The magnetically secured and easily removable/exchangeable nose cap also contributes to easy disassembly and safe transport.

Customer experiences and reviews

Positive feedback

Most pilots who tested the electric-impeller jet praise the excellent balance between sporty handling and real jet performance. Particularly appreciated is the ability of the model to be able to fly both slowly and stable as well as fast and agile.

Experienced pilots are thrilled with the ability to fly and the impressive vertical performance, while beginners in the EDF world appreciate the good-natured flight characteristics and reliable stabilization technology. The quality of the pre-installed components, in particular the digital servos and the drive, is frequently highlighted positively.

Critical notes

Some users have noted that the flight time can be relatively short at 4-6 minutes, especially in intensive flight style. However, this is a typical feature of EDF jets and no specific weakness of this model.

Occasionally, the desire for a stronger motorization for even more impressive vertical performance was also expressed, although most pilots are satisfied with the standard configuration.

Material and construction quality

Robustness and longevity

The E-flite Viper 64mm EDF Jet is made of lightweight, but strong and durable EPO foam with composite reinforcements. This construction offers an excellent ratio of strength to weight, while at the same time it allows a certain degree of flexibility with slight crashes or hard landings.

The surface finishing and the painting designed by Aircraft Studio Design are high quality and durable. The unique and clearly visible colouring not only improves the appearance, but also the visibility during the flight.

Components and accessories

The seven factory-installed digital servos equipped with ball joints provide precise and fast control at any speed. The brushless 4S compatible 2840-3150Kv external rotor motor and the 70A ESC are well matched and provide reliable performance.

The magnetically secured and easily removable Bugkonus design is especially convenient for transportation and possible repairs. The clear cabin hood with cockpit details and pilot figure increases the realism and visual attraction of the model.

Spare parts supply and support

Availability of spare parts

As a product of Horizon Hobby and E-flite, both established names in the RC industry, the spare parts supply for the Viper 64mm EDF Jet is excellent. Standard components such as servos, motors and electronics are readily available, as well as model-specific parts such as fuselage parts, support surfaces and control units.

Most hobby retailers that run e-flite products also keep the most common spare parts in stock, and online virtually all components are available. This ensures a long life of the model, even in occasional repairs.

Community support

Around the Viper 64mm EDF Jet has formed an active community of enthusiasts. In various forums and social media groups, owners exchange experiences, share tips for optimization and help in troubleshooting. These community resources are particularly valuable for new owners who want to benefit from the experience of others.

Comparison with alternative products

Direct competitors

In the segment of compact EDF-Jets with a size of about 64mm there are some remarkable alternatives to E-flite Viper:

1. FMS Avanti S 70mm EDF Jet: Something larger with 70mm Impeller, but similar in price and performance. The Avanti offers a slightly higher top speed, but is not as easy to start as the Viper with its AS3X+ and SAFE Select technology.

2. Freewing F-16 64mm EDF Jet: A true-scale alternative for lovers of military jets. The F-16 offers more authentic scale optics, but in terms of handling and versatility is not entirely at the level of the Viper.

3. E-flite F-16 Thunderbirds 70mm EDF: A somewhat larger model from the same house, which is aimed at more advanced pilots. It offers more speed and scale accuracy, but also requires more flight experience.

Compared to these alternatives, the Viper 64mm EDF Jet is characterized by its unique combination of jet performance and sports aircraft-like handling. The AS3X+ and SAFE Select stabilisation technologies replace it from many competitors and make it particularly suitable for pilots who want to enter the world of EDF jets.

Value for money

Compared to other models of its class, the E-flite Viper 64mm EDF Jet offers excellent value for money. The combination of high-quality design, pre-installed electronics and advanced stabilization technologies justifies the price, especially when you take into account the entry-level and versatility.

While there are cheaper EDF jets on the market, these often lack the advanced features and quality of the components that Viper offers. Conversely, more expensive models may offer more scale accuracy or higher speeds, but usually also require more experience for safe operation.

Tips, tricks and optimizations

Performance optimization

1. Weight reduction: Although the Viper already has a good flying weight, smaller weight reductions can further improve performance. The use of lighter batteries or the removal of the chassis for flights via grass can improve speed and flight time.

2. Battery positioning: Experiment with the position of the battery to fine tune the focus. A slightly head-loaded balance can improve stability at high speeds, while a slightly cock-loaded setting increases agility in the art flight.

3. proptuning: Some experienced pilots have reported that light modifications at the Impeller can improve the air flow. Careful smoothing and trimming of the Impeller leaves can increase efficiency.

Flight practices and techniques

1. Starting and landing techniques: For manual launches it is recommended to throw the jet with a slight upward movement at about 75% gas. When landings, a shallow approach with activated landing flaps should be selected to maximize control.

2. Art flight tips: The Viper 64mm EDF Jet is ideal for art flight maneuvers. Start with basic figures like loopings and roles before you go over to more demanding maneuvers. The precise controls allow a plurality of figures.

3. Speed management: Learn to fly at different speeds. The Viper can be flown both slowly and controlled and quickly and dynamically. The control of the entire speed spectrum significantly expands the flight experience.

Electronics and programming

1. Expo settings: The use of Expo settings in the transmitter is recommended for a more gentle response to the neutral position of the billets. 30-40% Expo on crossheads and altarpieces improve precision without limiting the maximum impact.

2. Dual rate settings: Use dual rate settings to switch between different flight modes. Lower rates for precise precision flight and higher rates for dynamic art flight.

3. Telemetry use: Use the Smart Lite ESC telemetry functions to monitor important flight information. Monitoring battery voltage and power consumption can help maximize flight time and protect the battery.

Frequent questions and problems

Device and configuration questions

Question: How do I activate or deactivate SAFE Select?

Answer: SAFE Select can be activated or disabled during the binding process. To activate SAFE Select, hold the connecting pin or button while you turn on the receiver and let it go when the LED starts flashing. To disable it, do not hold the connecting pin or button while switching on the recipient.

Question: Which transmitters are compatible with this model?

Answer: The Viper 64mm EDF Jet BNF Basic is compatible with all spectrum DSM2/DSMX compatible transmitters. For full telemetry functionality, spectrum AirWare equipped transmitters are recommended, such as the DX6e and 8e, DX6 G2/3 and 8 G2, the DX9 or the NX series.

Flight problems and solutions

Question: My jet tends to "wail" at high speed. What can I do?

Answer: This behavior can have several causes:

1. Check the center of gravity - a too far rear focus can cause instability.
2. Reduce the Expo values or increase the dual rate for more stable high speed behavior.
3. Make sure all servos and control surfaces are fixed and free of play.

Question: Flight time appears shorter than expected. How can I improve them?

Answer: Several factors can affect flight time:

1. Use batteries with higher capacity within the recommended range (up to 3200mAh 4S).
2. Fly with more moderate gas settings - full power consumes considerably more energy.
3. Avoid constant accelerations and extreme art flight maneuvers that draw more power.
4. Remove the chassis for flights via grass to reduce air resistance.

Maintenance and repair questions

Question: How can I repair damaged foam parts?

Answer: For repairs on EPO foam:

1. Use for smaller cracks and damage CA adhesive (second glue) medium viscosity.
2. 5-minute epoxy or foam-compatible PU adhesive is suitable for larger damages.
3. For heavily damaged parts, replacement is often the best option, as spare parts are readily available.

Question: How often should I check the servos and connections?

Answer: It is recommended to carry out a brief inspection before each day of flight:

1. Check all servo connections and linkages for fixed seat and freedom of play.
2. Check the mounting of motor and impeller.
3. Run a range test to check the radio link.
4. After about 10-15 flights, a more thorough inspection of all components should take place.

Conclusion and recommendation for purchase

The E-flite Viper 64mm EDF Jet BNF Basic with AS3X+ and SAFE Select represents an excellent balance between performance, handling and accessibility in the compact EDF-Jets segment. Its unique combination of jet appearance, sports aircraft-like handling and state-of-the-art stabilization technology makes it an excellent choice for a wide range of pilots.

For beginners in the world of EDF-Jets, this model offers a smooth transition thanks to the supportive SAFE Select technology. Advanced pilots will appreciate the impressive art flight capability and high speed while the easy maintenance and good spare parts supply guarantee long-term flight fun.

In view of the excellent price-performance ratio, high-quality design and versatile flight characteristics, this compact Impeller jet can be fully recommended. It represents a rewarding investment that enables both beginners to enter the EDF world and offers experienced pilots a versatile and powerful aircraft for their arsenal.