E-flite Apprentice STS 1.5m RTF Basic Smart Trainer with SAFE (EFL370001)

E-flite Apprentice STS 1.5m RTF Basic Smart Trainer with SAFE (EFL370001): The ultimate guide for buyers

The entry into the world of model flight rarely succeeds with a model that offers both beginners and advanced players a maximum of safety, quality and flight fun. The E-flite Apprentice STS 1.5m RTF Basic Smart Trainer with SAFE (EFL370001) stands out from the crowd right here. In this comprehensive article you will learn everything you need to know before buying – from technical data to user reviews to professional tips and alternatives.


Technical data and facts at a glance

The following table gives a quick overview of the most important technical features:

CharacteristicsDetails
Range1499 mm
Length1080 mm
Weightca. 1390–1672 g
MaterialEPO (expanded polyolefin)
Type of driveElectric motor, brushless (BL15 840kv 12-pin)
Recommended battery format3S 11,1V 3200–4000 mAh LiPo, EC3/IC3 connection
Controller30A, telemetry-capable
Servos3x 13g Digital Metal Gear, 1x 37g Servo
Protocol/control systemSpectrum DSMX, 2.4GHz, AS3X and SAFE technology
Radio remote controlSpectrum DXS transmitter (already included)
Propeller size11 x 8 electric
DifficultyLevel 1 (ideal for beginners)
AreasNot foldable, no landing flap system
ScopeModel, Engine, Controller, Servos, Receiver, Transmitter, Manual
Assembly time< 1 hour
UpgradeableSAFE Plus GPS, landing sensor possible

Customer reviews and practical experiences

The resonance of beginners and experienced pilots is mostly positive. Particular emphasis is placed on:

  • Easy commissioning: Many users report that the construction and initial commissioning can be achieved without problems thanks to the clear guidance and the RTF (Ready-to-Fly). After less than an hour, the trainer is ready to start.
  • Stability and flight behaviour: As an official AMA trainer, the model is often used in flight clubs. Especially beginners appreciate the SAFE technology, which has different flight modes and a panic function (rescue button). As a result, even critical flying moments can be quickly detonated.
  • Robustness: The EPO material also captures rough landings well, which is often referred to as a big plus point in the experience reports.
  • Smart features: Especially in conjunction with compatible smart technology (acculine, telemetry) users experience a modern, reliable flight operation with real-time data transmission.

Critical points:

  • The supplied battery capacity is perceived by some users as "something scarce", especially in wind or intensive use. Here it is recommended to purchase a second battery with 4000 mAh.
  • Advanced pilots note that the model does not have landing flaps, which is usually not decisive for beginners.

Test results and assessments

Comparative tests in specialist magazines and online portals confirm:

  • Flight stability: In the starter mode, the system takes many tasks away from the pilot. SAFE technology prevents excessive inclinations or control losses and can be continuously deactivated for advanced users.
  • Ascending power: With the powerful brushless motor and matching battery, the model achieves a solid gradient. Vertical climbing flight manages controlled, sufficient power is available for simple art flight figures.
  • Flight time: In test operation, pilots with a 3200 mAh LiPo get flights of 6–8 minutes, with a 4000 mAh battery, realistic flight times of up to 10 minutes are easily accessible.
  • repairability: The EPO material can be repaired in the event of damage with second adhesive or EPO adhesive. Spare parts are widely available.

Material quality and processing

The model consists largely of expanded polyolefin (EPO). This material offers several advantages:

  • Shock and break resistant: EPO absorbs energy in hard landings better than classic foams, the aircraft usually overcomes beginners' mistakes without major damage.
  • Low weight, high strength: This results in a good ratio of flight performance to robustness.
  • Surface structure: The surface is smooth and aerodynamic, the faithfulness of detail corresponds to a modern starter sports model.

Flight times and performance

The flight time depends mainly on battery capacity, flight style and weather. With standard battery (3200 mAh):

  • Normal flight conditions: 6–8 minutes
  • With 4000 mAh battery: to about 10 minutes

The climbing power is sufficient to quickly gain height even with moderate charging (e.g. telemetry, GPS module). There is enough power for "Touch and Go" exercises, grinding and gentle art flight figures.


Transport and mobility

With a span of about 1.5 meters, the trainer is large enough for stable flight characteristics, but still remains handy. The support surfaces can be removed from the side, which makes transport in the car or on foot considerably easier. The low weight makes it easy to build on the airfield.


Spare parts supply

The manufacturer and numerous dealers offer a wide range of spare and tuning parts:

  • Availability: Wings, control units, motors, propellers, wheels and electronics are available at short notice.
  • Exchange: Due to modular design, defective parts can be quickly replaced – ideal for beginners who cannot exclude small crashes.

Target group

The model is aimed at:

  • Beginner: Thanks to SAFE technology and the option to further assistance systems (e.g. GPS, landing sensor), it is especially suitable for beginners with little or no flight experience.
  • Advanced: Anyone who wants to teach flying to others or is looking for a reliable training model is also well advised here.
  • Clubs: The Apprentice is often used as a "school aircraft" in model flight clubs.

Construction and Guidance

The assembly must be managed in less than an hour. The individual modules (guide, surfaces, chassis) are screwed or plugged. Beginners report that the guide is clear and clear – with many pictures and clear step-by-step explanations.


Community support and exchange of experience

The Apprentice series is widely used internationally, there are numerous forums, Facebook groups and YouTube videos with tips and flightlogs. Customer support by traders such as Horizon Hobby is described as reliable and helpful.


Alternatives of competitors

Not all models offer comparable flight assistance systems and longevity. Popular alternatives are:

ModelRangeSAFE/AS3X/assistance systemsPriceComments
HobbyZone Carbon Cub S 21300 mmSAFE, AS3XMediumA little shorter, comparable features
EasyStar 31370 mmEasy ControlBeginnersSimple, less high-tech
FMS Super EZ V41220 mmGyro (optional)CheapCompact, but less upgrade options
TrainStar1400 mmStabilisation (optional)Very cheapSimple equipment

In a direct comparison, the Apprentice STS 1.5m Basic offers the most extensive assistance functions and a flexible, upgradeable system. Those who place great value on high-tech support find the best overall package here.


Value for money

The model moves in the middle price segment for RTF trainers of this size and equipment. Given the high-quality components, the long-lasting construction and the broad community support, the price-performance ratio is excellent. The opportunity to upgrade the model modularly (GPS, Telemetry, Landing Sensor) justifies the investment in the long term.


Tips, tricks, recommendations and optimizations

Batteries and chargers:
An additional 4000 mAh battery and a quick charger increase the flight fun.

Keep spare parts ready for use:
As a beginner it is recommended to have propellers and suspension legs on stock.

SAFE Plus retrofit:
The optional SAFE Plus upgrade with GPS module allows automatic landings, virtual boundaries and a “holding pattern” function – ideal for unclear flight locations.

fine tuning of control:
With some experience, it is worth adjusting the sensitivity of the control in the transmitter in order to adapt the flight behavior to your own wishes.

Optimize flight times:
If you want to extend the flight time, you should think about a lighter battery (e.g. 3200 mAh) with a quiet flight style or keep a second, fully charged battery ready.

Improve transport:
A suitable carrying bag or surface protector prevents transport damage.

Tuning:
For advanced users there are high-quality propellers or light aluminium wheels that further improve flight performance.


Frequent user questions and known problems

1. How does SAFE technology work exactly?
SAFE offers various flight modes from beginners to advanced. In the starter mode, inclined positions are automatically corrected and the aircraft remains stable when there is control loss. A panic button brings the model into balance and stabilizes it immediately.

Two. What do connection problems with the transmitter?
Transmitters and receivers should be checked for fixed reception before each start. In case of problems, the reconnection of both devices often helps. Spectrum firmware updates can in some cases improve connectivity.

3. Can I retrofit cameras or telemetry?
Yes, the supporting surfaces and the fuselage provide enough space for small cameras or telemetry sensors. The power supply is via the flight battery or separate BEC outputs on the controller.

4. What to do with damage to the EPO hull?
Smaller cracks in EPO material can be easily repaired with special foam adhesive. For larger fractures there are corresponding spare parts, whose exchange is usually made in a few minutes.

Five. Is the guide understandable for absolute beginners?
The instructions are considered exemplary. Step-by-step images and clear explanations also make beginners easy to build and start up.

6. How do I find local model airfields?
Many clubs and clubs work with the manufacturer and offer pacifier flies with this model. A short internet search or demand in the model shop facilitates entry.


What should buyers still know?

  • The E-flite Apprentice STS 1.5m RTF Basic Smart Trainer with SAFE (EFL370001) is currently one of the most modern platforms for model flight entry.
  • The flexibility thanks to upgrade options on SAFE Plus, GPS and Landing Sensor is looking for the same.
  • The loss of value is low, as used models are sought by high demand on the used market.
  • Accessories such as high-quality batteries, chargers or transport bags should also be considered when buying.
  • A strong dealer network and a dedicated community help solve all questions from assembly to challenging flight scenarios.

Conclusion

If you are looking for a reliable, robust and technologically advanced RC trainer, the E-flite Apprentice STS 1.5m RTF Basic Smart Trainer with SAFE (EFL370001) will find an overall package that meets almost all the wishes of beginners and their mentors. A clear purchase recommendation for those seeking a safe and successful start into the fascinating hobby of the model flight.

3S
No
EPO
Elektrisch
42.52" (1080 mm)
59oz (1672g)
59.02" (1499 mm)