E-Flite EFL3700 Apprentice STS 15e 1.5m RC Plane (Mode 2)

Product Code: EFL3700
$649.99 $619.99 5%

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An exciting evolution of the world's favorite club trainer, the E-flite Apprentice STS 1.5m features Spektrum Smart components, SAFE technology, and the option to add SAFE Plus and the Landing Assist Sensor, to make learning to fly easier than ever!


  • Based on one of the best platforms ever designed for learning to fly radio controlled (RC) airplanes—the Apprentice S 15e
  • Perfect for first-time pilots, experienced pilots that teach others to fly and club training programs
  • Official Trainer of the Academy of Model Aeronautics (AMA) and many clubs worldwide
  • The ideal choice for new pilots when learning to fly with an instructor at an RC flying field
  • Exclusive SAFE® technology from Horizon Hobby makes it easy to learn to fly
  • Easily upgrade to SAFE Plus GPS-enabled technology to add AutoLand, Virtual Fence and Holding Pattern features
  • Optional and easy to install Landing Assist Sensor (LAS) available for smoother landings
  • Includes everything you need to fly in one box—nothing extra to buy or provide
  • Spektrum DXe transmitter with industry-leading DSMX 2.4GHz technology
  • Spektrum 3200mAh 3S 11.1V Smart LiPo battery delivers long flight times
  • Spektrum S120 Smart charger works with a variety of USB power sources
  • Factory-installed servos, Spektrum flight controller and serial receiver
  • Powerful and efficient brushless power system including a Smart ESC
  • Wide-stance tricycle landing gear with steerable nose wheel
  • Quick and easy assembly—no glue or special tools required
  • Durable EPO construction that's tough yet lightweight
  • Optional floats available for flying from water
  • Practice flying this aircraft in the RealFlight® simulator

The E-flite® Apprentice® STS 1.5m is based on one of the very best platforms ever designed for learning to fly radio-controlled (RC) airplanes—the legendary Apprentice S 15e. That model's large size made it an ideal choice for better visibility and the ability to handle more wind while learning to fly at an RC club flying field, and its inherently stable design plus exclusive SAFE® (Sensor Assisted Flight Envelope) technology made it easy to fly successfully—especially with the help of an instructor. The Apprentice STS 1.5m is a modern-day evolution of the world's favorite club trainer that includes all the same great features while adding Smart components including an ESC, battery and charger (battery and charger sold separately for the BNF® Basic version), along with the option to add SAFE Plus® GPS-enabled technology and the all-new Landing Assist Sensor (LAS), to make learning to fly easier—and more fun—than ever before!

The Ready-To-Fly (RTF) version includes everything needed to fly in one box and is a perfect choice if you're a new RC pilot. From the Spektrum DXe 2.4GHz transmitter you can use with other Bind-N-Fly® (BNF) and BNF Basic aircraft after you learn to fly the Apprentice STS, to the 3S 3200mAh Smart LiPo battery that delivers long flight times and the convenient S120 USB-C Smart charger that can be used with a variety of USB power sources, there's nothing extra you need to buy or provide! A BNF Basic version is also available for experienced pilots and clubs that want to use their favourite Spektrum transmitter along with batteries and chargers they may already own. And for both versions, the powerful and efficient brushless power system including a Smart ESC, plus the flight controller, receiver and servos, are all factory-installed in the durable EPO airframe that assembles quickly and easily without the need for glue or special tools.

And the fun doesn't stop after you learn how to fly! In the Experienced Mode, the Apprentice STS 1.5m is capable of performing aerobatic maneuvers including loops, rolls, inverted (upside down) flight and more. You can even install the optional floats to take off from and land on water.

The Apprentice STS 1.5m is the smartest and best club trainer ever, and that makes it perfect for first-time pilots, experienced pilots that teach others to fly, and for club training programs alike. That's why it's the Official Trainer of the Academy of Model Aeronautics (AMA) and the best choice for new pilots seeking a larger trainer that makes it easier to progress into more advanced RC airplanes!

Required to complete

Absolutely nothing! Everything you need to fly is in the box!

What's in the Box?

  • (1) E-flite Apprentice STS 1.5m with:
  • (1) Brushless Outrunner Motor (installed)
  • (1) Smart 30A Brushless ESC (installed)
  • (2) 13-gram Digital and (4) 37-gram Servos (installed)
  • (1) Spektrum 3230 Flight Controller (installed)
  • (1) Spektrum 4650 Serial Receiver (installed)
  • (1) Spektrum DXe DSMX® 2.4GHz Transmitter
  • (1) Spektrum 3200mAh 3S 11.1V Smart LiPo Battery
  • (1) Spektrum S120 USB-C Smart Charger
  • (1) Product Manual


    Progressive flight modes

    Beginner Mode
    In this flight mode, the model has bank and pitch limits to prevent the pilots from over controlling the model and getting into trouble. When you let go of the sticks the model will return to level flight, allowing you to regain composure and go again.

    Intermediate Mode
    The bank and pitch limits are turned down in this mode, giving you more freedom but still limiting the ability to over control the model, the model will not return to level flight on its own, allowing tighter turns and more general manoeuvrability

    Advanced Mode
    In this mode it’s all on you! There are no bank or pitch limits and you can do any aerobatic manoeuvres that you like, Panic recovers and still be activated by switching back into beginner mode and releasing the sticks.

    Panic Recovery
    If you lose control of the model in Intermediate or Advanced mode just simply return the switch to beginner mode and release the sticks. SAFE technology will take over and return the model to straight and level flight.

    Optional SAFE Plus GPS Technology

    With a simple installation of the optional Spektrum GPS Module (sold separately), you can take the flight assistance to the next level. With features like Autoland helping to land the model automatically from the GPS initialization point. The holding pattern feature allows you to essentially pause your flight and place the aircraft into a GPS guided pattern until you feel like taking over again and continuing on flying. Finally, the virtual fence system keeps the model from ever being able to fly too far away and puts up a virtual block than when the model hits this point it turns around and comes back.

    Spektrum Smart Battery and Charger

    This RTF version includes a Spektrum 3S 3200mAh Smart LiPo battery that delivers long flight times, plus an S120 USB-C Smart charger that can be used with a variety of USB power sources. Simply connect the battery to the charger, and the exclusive Smart Technology will determine and start charging at the best rate to properly and safely charge the battery automatically.

    Durable Design

    Construction with advanced EPO material delivers a lightweight yet durable airframe that's tough enough to handle everyday flying punishment without getting bent out of shape. The wing attaches to the fuselage with rubber bands so it can twist or "pop" free in the event of a hard landing or crash to minimize damage. And in the unfortunate event that you damage any airframe parts or components and can't repair them, a full line of replacement parts is readily available.

    Easy Assembly

    The Apprentice STS 1.5m arrives mostly factory-assembled with the power system, flight controller, receiver and servos installed. All you need to do is finish some quick and easy final assembly, without the use of glue or special tools, and you'll be ready to fly in less time than it takes to charge a battery!

    Capable Gear

    The wide-stance tricycle landing gear with a steerable nose wheel offers improved ground handling for easier takeoffs and landings on a wide variety of surfaces from paved runways to grass and even dirt.

    Optional Floats

    Turn the Apprentice STS 1.5m into a floatplane with the optional float set (EFLA550; sold separately). Installation takes just a few minutes and all the necessary hardware is included with the airplane and float set.

  • Control Throw - High (Ailerons) : 0.91" (23mm)
  • Minimum Speed Control : Smart 30A Brushless (installed)
  • Servos : Four standard, two micro
  • Control Throw - Low (Rudder) : 1.10" (28mm)
  • Flying Weight : 251-2000g, 49oz (1390g)
  • Landing Gear : Prebent wire, tricycle configuration
  • Approximate Flight Time : 5 minutes
  • Control Throw - Low (Elevator) : 0.71" (18mm)
  • Wing Area : 515 sq in (33.2 sq dm)
  • Control Throw - High (Rudder) : 1.35" (35mm)
  • Completion Level : Ready-To-Fly
  • Length : 42.5" (1080mm)
  • Transmitter Range : Full
  • CG (Center of Gravity) : 3.125" (79mm) from leading edge of wing measured at the fuselage
  • Control Throw - Low (Ailerons) : 0.71" (18mm)
  • Wingspan : 59" (1500mm)
  • Charger : Spektrum S120 USB-C Smart Charger
  • Control Throw - High (Elevator) : 0.91" (23mm)
  • Recommended Motor Battery : Smart 11.1V 3S 3200mAh LiPo w/IC3 connector included
  • Airfoil Shape : Flat bottom
  • Approximate Assembly Time : No assembly required
  • Minimum Required Radio : Spektrum DXe DSMX 2.4GHz included
  • Motor Size : 840kV