User Manual

EN
Sensor Assisted Flight Envelope (SAFE) Technology
Sensor Assisted Flight Envelope (SAFE) Technology
SAFE technology is a revolutionary flight training system designed to 
give you a stable platform for safely developing your flying skills. This is 
not an autopilot or self-guiding robot. The sensors and software in this 
system help you fly the aircraft where you want to go while decreasing the 
risk of an out-of-control crash. You can progress through the Beginner, 
Intermediate and Experienced flight modes as your skills increase, all with 
the confidence of an optional Panic recovery mode. At any time during a 
flight you can switch between the 3 flight modes or use Panic recovery to 
get your aircraft to a safe flying attitude.
SAFE Flight Modes 
Beginner Mode 
• Envelope limit: Pitch (nose up and down) and Roll (wing tips up and 
down) angles are limited to help you keep the aircraft airborne
• Self-leveling: when the pitch and roll controls are returned to neutral, 
the aircraft returns to level flight
• Stability assisted takeoff and landing 
• Throttle based climb and descent 
Intermediate Mode 
• Natural Flight Experience: In normal training flight conditions, the pilot 
experiences natural AS3X
®
 flight for smooth handling and outstanding 
precision 
• Large Flight Envelope: The pilot is only prevented from entering extreme 
flight conditions outside the training flight envelope
Experienced Mode 
• Natural Flight Experience: The pilot experiences natural AS3X flight for 
smooth handling and outstanding precision
• Unlimited Flight Envelope: No limit on Pitch and Roll angles (airframe limited) 
Panic Recovery
• Immediate recovery to a safe flying attitude
• Return all transmitter controls to neutral for the quickest recovery
• This mode is intended to provide the pilot with the confidence to 
continue to improve their flight skills
AS3X
®
technology
Horizon Hobby has always made RC sport, scale and unique aircraft with 
the kind of performance experts appreciate. Now the exclusive Artificial 
Stability 3 axis (AS3X) system helps take performance expectations in 
aircraft a quantum leap higher. Based on the successful use of MEMS 
sensor technology within the AS3X Stabilization System essential to Blade
®
ultra micro flybarless helicopters, the specifically tuned AS3X System for 
airplanes helps invisibly correct for turbulence, torque and tip stalls when 
encountered. Furthermore, the outstanding control agility delivers an ultra 
smooth, locked-in feel that obeys your every command with performance 
that’s natural feeling. It’s so gratifying, in fact, that it’s as though you’re 
the RC pilot of an expertly tuned, giant-scale aircraft. AS3X will change the 
way you’ll want to fly now and in the future. To see what we mean, go to 
www.E-fliteRC.com/AS3X.
RollPitch
RollPitch
RollPitch
1.  Pilot loses control of the aircraft 
in any flight mode.
2.  Pilot pulls and holds the Panic 
Recovery switch and returns all 
other controls to their neutral 
position. The aircraft will roll 
wings level and pull out of a 
dive...
3.  ...once the aircraft is flying 
straight and level, the pilot 
releases the Panic Recovery 
switch and continues a gentle 
climb to a safe altitude.
1
2
3
IMPORTANT: Aircraft will recover to a safer attitude even if sticks are held. 
Some control input is still used with panic activated.
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