Apprentice STS 1.5m RTF Smart Trainer with SAFE (EFL3700)
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!
E-flite® took the world's favorite club trainer and made it SMARTER with the Apprentice® STS 1.5m. Based on one of the very best platforms ever designed for learning to fly radio controlled (RC) airplanes, its large size and 1.5 meter (59.0 inch) wingspan offers better visibility and the ability to handle more wind while learning to fly at an RC club flying field. Its inherently stable design plus SAFE® (Sensor Assisted Flight Envelope) technology featuring Beginner, Intermediate and Experienced flight modes makes it easy to fly successfully, especially with the help of an instructor. The addition of exclusive Spektrum™ Smart components including a lithium polymer (LiPo) battery and charger make it more convenient to charge properly and safely (battery and charger sold separately for the BNF® Basic version). And best of all it now has the option to upgrade to SAFE Plus GPS-enabled technology that offers features such as AutoLand and Virtual Fence, plus the option to install the all-new Landing Assist Sensor (LAS) that automatically "flares" for smoother landings, to make learning to fly—and to land safely—easier than ever!
The Ready-To-Fly (RTF) version includes everything needed to fly in one box, and is the 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 favorite 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!
If this is your first RC airplane, Horizon Hobby-exclusive SAFE (Sensor Assisted Flight Envelope) technology prevents over-control and crashing while also offering multiple flight modes to deliver more control and capabilities as your skills progress:
In this flight mode, the airplane has pitch and bank angle limits to prevent over-control that can result in a loss of orientation and crashes. When the control sticks are released, the airplane automatically returns to level flight on its own allowing you to relax and enjoy just 'steering' the airplane through the sky. This flight mode also makes it easier to take off and land.
This flight mode allows more freedom in pitch and bank, but still prevents significant over-control and the airplane does not return to level flight on its own. This allows you to make tighter turns and to climb and descend faster as your skills advance. Also, Beginner Mode automatically activates and returns the airplane to level flight when it descends below approximately 30 feet above ground level and the control sticks are released.
In Experienced Mode there are no pitch or bank angle limits so you have complete control! You can even fly inverted (upside down) and perform aerobatic maneuvers including loops, rolls, stall turns and more. Panic Recovery can be activated by switching to Beginner Mode and releasing the control sticks.
If you lose control of the airplane in the Intermediate or Experienced flight modes, simply switch to Beginner Mode and release the control sticks. SAFE technology will automatically return the airplane to level flight.
With quick and easy installation of the optional Spektrum GPS Module you can add next-level autonomous guidance features that make it even easier to learn to fly. With SAFE Plus added you get:
Activated by simply holding down a button, the advanced AutoLand function puts the airplane on a stabilized approach to land on its own near the GPS initialization point. You can even provide some directional guidance to avoid obstacles or to adjust the approach while letting the system do the rest to execute a safe landing. As your skills progress and you gain more confidence you can take over more of the control inputs, eventually learning to land without any assistance from the automated system at all.
This very helpful SAFE Plus-exclusive feature essentially allows you to "pause" the flight by putting the airplane into a GPS-guided holding pattern. When activated with the quick press of a button, the airplane will automatically return to a position above the GPS initialization point and circle until the command is cancelled with another quick press of the button. It's a great way to safely hand the controls off to a friend or to regain visual contact if you ever lose sight of the model.
It's easy to accidentally let an RC airplane fly too far away, but with Virtual Fence, worry no more. It creates an invisible boundary the airplane won't fly past. When the airplane reaches this boundary, it will automatically turn around and fly back toward the GPS initialization point. Then it will "wag" the wings to let you know when you have control again.