The ultimate guide to the Habu STS 70mm EDF Jet: The ideal RC training jet for beginners

The dream of its own jet model is great for many RC enthusiasts, but reality often brought disappointments. Until now! With the E-flite Habu STS 70mm EDF Jet RTF Basic Smart Trainer with SAFE, the renowned manufacturer offers a revolutionary concept: a genuine electric jet designed specifically for beginners. This extraordinary model promises a simple entry into the fascinating world of beam models. In this detailed article we look at all aspects of the EDF jet and help you with your purchase decision.

Technical specifications of the Habu-Trainerjet

The Habu STS impresses with its sophisticated design, which has been specially tailored to the needs of beginners, without abandoning the performance of a real jet.

The Smart Trainer convinces with its robust design and is equipped with a powerful drive system. The 70mm diameter 10-sheet Impeller generates ample thrust while the 70-amper with telemetry functions ensures precise power control.

Target group: Who should buy this training jet?

The Habu STS pursues a groundbreaking concept: It is the first real electric jet trainer that is actually suitable for absolute beginners. To date, the recommendation has always been to first collect flying experience with conventional propeller models before you dare to use jets more demandingly.

Thanks to the integrated SAFE technology (Sensor Assisted Flight Envelope) with three different flight modes, beginners can now safely and successfully complete their first flights with a jet model without prior knowledge. The intelligent electronics prevent critical flying conditions and assists the pilot in the control of the model.

Ideal target groups:

• Absolute RC Beginners with Interest in Jets
• Model flyers with propeller experience that want to switch to jets
• Advanced pilots looking for an uncomplicated EDF jet

Experienced pilots will appreciate the good-natured flight characteristics and the ability to gradually disable the SAFE system in order to take more control.

Delivery and installation time

The E-flite Habu comes from the packaging in the RTF variant (Ready-To-Fly). Included are:

• The preassembled Habu STS 70mm EDF Jet
• Pre-installed Brushless Outrunner Motor
• Pre-installed 70A Brushless controller
• Five built-in Sub-Micro servos
• Integrated spectrum 3230B flight controller
• Built-in spectrum 4650C serial receiver
• Range DXS DSMX 2.4GHz remote control
• Detailed user manual

The actual construction time is only about 30-45 minutes, as only a few components have to be mounted. The user manual is detailed and well illustrated, which allows even beginners a quick entry. Most users report that they could make their model ready for flight within an hour.

Not included are the required LiPo battery (3S 11.1V or 4S 14.8V with 3200–4000mAh) and a suitable charger. Here, the manufacturer recommends the range Powerstage 3 Bundle (SPMXPSA300), which contains a compatible 3S 4000mAh Smart G2 LiPo battery and a S120 USB-C Smart Charger.

Flight characteristics and performance

Flight times

With a 3S 4000mAh LiPo battery, the training jet reaches average flight times of 5-7 minutes, depending on flight style and environmental conditions. With predominantly gentle sliding with reduced thrust, up to 8 minutes are also possible. With a 4S battery, the flight time is slightly shortened to about 4-6 minutes due to the higher power consumption, but offers significantly more speed and rise.

Increased power

The climbing performance of the Habu STS is impressive for a starter jet. With a 3S battery, the model achieves a solid but controllable rate, which is especially well to handle for beginners. With a 4S battery, the trainer turns into a much more dynamic aircraft with a considerable climbing capacity, which is also sufficient for more demanding maneuvers.

A special advantage: Unlike many EDF jerseys, Habu STS does not need to change from 3S to 4S. The model is designed for both types of battery.

Starting and landing properties

The three-legged suspension with steerable bow suspension and oversized tyres allows starting and landings on various substrates – from asphalted slopes to grass and even gravel surfaces. This versatility is particularly valuable for beginners as they are not dependent on perfect slopes.

An optional Landing Assist Sensor (LAS) can be retrofitted, which automatically "catches" during the landing approach and thus allows gentler landings – a great help for newcomers who often have difficulties with the challenging landing phase.

Material quality and processing

The Smart Trainer convinces with its high-quality workmanship. The main components consist of robust EPO foam with strategically placed reinforcements at particularly loaded locations. The surface is provided with a high-quality film which not only is optically attractive, but also provides protection against minor damage.

The components pre-installed at the factory, such as motor, controller and servos, are of good quality and are specially selected for this model. The cabling is clean and all plug connections are easily accessible, which facilitates subsequent maintenance.

Particularly noteworthy is the stable chassis with the oversized tires, which also makes rough landings on uneven surfaces – an important aspect for beginners models, which naturally are more often imposing.

Transport capacity

With a span of 1033 mm and a length of 1140 mm, the electric jet is compact enough to easily transport it. The support surfaces cannot be removed, which on the one hand increases the stability of the model, but on the other hand requires a somewhat larger transport space. However, a medium-sized car is completely enough to transport the jet to airfields.

A suitable transport bag or box is recommended for transport, which protects the model from damage. Many users report that they use standard aircraft bags for 1m models that fit well and provide sufficient protection.

Spare parts supply

As a product of an established manufacturer like E-flite, the spare parts supply for the Habu STS is excellent. All important components are available individually, from spare propellers to electronic components to body parts.

The good availability of spare parts is especially important for beginners models, since one or the other incident can be expected here. Most specialist dealers run the popular spare parts in stock, and also online they are easily available.

The compatibility with standard components should also be highlighted. Thus, for example, the servos or the motor can be replaced with commercially available products, which ensures the long-term usability of the model.

Customer reviews and reviews

The response of customers who purchased the jet trainer is mostly positive. The first-class flight characteristics and the suitability for beginners are particularly highlighted.

A recurring topic in experience reports is the surprise about how easy the handling of the model is actually. Many users report that after initial scepticism they were enthusiastic about how good-natured and despicable the jet reacts – properties that are otherwise rare in jet aircraft.

The robustness of the model is also often mentioned positively. The Habu STS often survives minor accidents and unfortunate landings without significant damage, which is an important factor for beginners.

Critic points refer mainly to the relatively high purchase price compared to simple propeller trainers and to the limited flight time, which however is typical of EDF jets of this size class.

Test results from specialist magazines

In specialist tests, the electric training jet cuts well throughout. Especially praised:

• The innovative SAFE technology that allows even beginners a secure entry
• The balanced flight behaviour with good-natured stable properties
• The solid processing and quality of the installed components
• The versatility through the ability to fly with both 3S and 4S batteries
• The robust chassis, which allows start and landings on various surfaces

Test pilots confirm that the model is actually suitable as a first aircraft, provided that the beginner is supported by an experienced pilot or uses SAFE technology consistently.

Tips and tricks for optimal flight results

Battery optimization

For maximum flight time and performance, experienced pilots recommend:

1. Start with 3S batteries on first flights to get familiar with the flight characteristics
2. To put on high-quality LiPo batteries with low internal resistance
3. Bringing the batteries to room temperature before flight
4. Regularly check the balance of battery cells

Flight recommendations

For an optimal flight experience Note the following points:

1. Take first flights in quiet weather and with sufficient space
2. Start in beginner mode and switch to higher modes only after safe control
3. Execute gentle, uniform control movements
4. The landing approaches begin with sufficient height and a long, shallow slide path
5. Gradually reduce the thrust during landing and do not abruptly stop

Modifications and improvements

Experienced users have developed various optimizations:

1. Installation of optional landing assist sensor for gentler landings
2. Mounting LED lighting for better visibility and more realistic appearance
3. Easy adaptation of the focal point for individual flight characteristics
4. Upgrade to higher-quality servos for even more precise control

Alternatives and competitive products

The E-flite Habu STS 70mm EDF Jet has occupied a special niche in the RC market as it was designed as the first real training jet for absolute beginners. Nevertheless, there are some alternatives that might be interesting depending on individual preferences and levels of experience:

FMS Avanti S 80mm EDF PNP

Advantages:

• Larger Impeller (80mm) with more thrust
• More sporty flying behaviour for advanced pilots
• Removable support surfaces for better transport

Cons:

• No integrated SAFE system
• Not suitable for absolute beginners
• Higher purchase price

Freewing F-16 64mm EDF Jet

Advantages:

• Realistic appearance of a combat jet
• Compact design
• Cheaper price

Cons:

• More demanding flight characteristics
• Less stable at low speeds
• Not designed for beginners

E-flite Viper 70mm EDF

Advantages:

• Sportier performance
• Elegant design
• Also available with SAFE option

Cons:

• Less beginner-friendly flight characteristics
• Higher landing speed
• Sensitive in wind

In a direct comparison, the Habu STS offers the most beginner-friendly features and the most comprehensive training concept. The competition products are aimed more at pilots with experience who already master the basics of the RC fly.

Value for money

With a purchase price in the middle to top segment, the Smart Trainer is not an entry-level investment that should be done easily. However, if the following factors are taken into account:

1. The high-quality processing and durable components
2. The innovative SAFE system that minimizes expensive repairs after crashing
3. Possibility to enter directly with a jet without having to invest in propeller models beforehand
4. The good value stability of E-flite products

Compared to the usual learning curve (multiple propeller models that are often damaged before moving to jets), the direct entry with the Habu STS can even be cheaper. The combination of beginners' suitability and "first" jet experience makes the overall price-performance ratio attractive.

Community support and resources

An active community has developed around the E-flite Habu STS. In numerous forums and social media owners exchange their experiences and give valuable tips. Particular emphasis should be given to:

• Various Facebook groups especially for the Habu STS
• Numerous YouTube channels with flight videos, tips and tutorials
• Manufacturer forums with direct support by e-flite employees

These community resources are especially valuable for beginners as they can provide quick help with problems and significantly reduce the learning curve.

Frequent questions and problems

"Is this model really suitable for complete beginners?"

Yes, the Habu STS has been specially designed for entry. The SAFE technology with its three flight modes ensures that the model is flying very stable in beginners mode and extreme flight positions are automatically corrected. Nevertheless, for the first flight, it is recommended to support an experienced pilot or use a flight simulator to learn the basic control principles.

"How does the RTF version differ from the PNP version?"

The RTF version (Ready-To-Fly) already contains the transmitter and the receiver, while the PNP version (Plug-and-Play) needs to be purchased separately. The RTF version is ideal for beginners as all required components (except battery and charger) are already included and matched to each other.

"My model has balance problems. What can I do?"

A common problem with first flights is an incorrectly adjusted focus. E-flite provides a precise position in the guide, which should be strictly adhered to. In case of problems it is recommended:

1. Checking the key position according to instructions
2. Adjustment of battery position to optimize focus
3. Add small weights to nose or tail if required

"The engine is not running round. What is the cause?"

The following points should be checked for engine running problems:

1. Correct connection of all plugs between controller and motor
2. Sufficient battery charge (under load the voltage drops sharply)
3. Damage to the Impeller (small unbalances lead to vibrations)
4. Correct programming of the controller

"How can I extend the flight time?"

For maximum flight times, experienced pilots recommend:

1. Use of high-quality batteries with maximum capacity (4000mAh)
2. Flying with reduced thrust in efficient sliding conditions
3. Avoiding frequent solid gas phases
4. Optimization of the center of gravity for best sliding behavior

Conclusion: Revolutionary entry into the jet world

The E-flite Habu STS 70mm EDF Jet revolutionizes the entry into the world of RC jets. With its innovative SAFE technology, a well-thought-out design and the start-up-friendly flight characteristics, it makes it almost impossible to achieve this so far: the direct entry into the RC aircraft with a real beam model.

The combination of high-quality workmanship, thoughtful concept and comprehensive support by community and manufacturers make the training jet an excellent choice for those who want to realize the dream of their own jet model – whether as a first model or as a supplement to an existing fleet.

Despite the not inconsiderable purchase price, the model offers a convincing price-performance ratio, especially if one takes into account the potentially saved costs for damaged entry models. The Habu STS is not only a flying model – it is a well-thought-out training concept that significantly facilitates entry into a fascinating hobby.