The Fail Safes; Low Power; Loss Of Flight Control Connection - Hubsan H507A X4 STAR PRO User Manual

5、The Failsafe

5-1 Low power

When the aircraft battery is low, there is likely insufficient power to support the return of the aircraft.
Please land the aircraft immediately, otherwise the aircraft will fall and cause damage to the aircraft and
surrounding objects. To prevent this, the aircraft flight control will use flight information to determine
whether to perform a Return to Home or to land immediately.
Note: If the transmitter joysticks or keys are utilized during the Return to Home process, the aircraft
will immediately exit RTH mode. Users must re-engage Return to Home to continue it once more.

5-2 Loss of flight control connection

When the flight control connection between the aircraft and transmitter is lost, the aircraft will
automatically land or return to where the remote control/transmitter was last located and land there. This
can drastically reduce the possibility of the aircraft crashing or being lost.
Return Home point: The aircraft records the return point as the location where it first gains 6+
satellites in GPS Hold mode.
Conditions that may trigger a failsafe
Transmitter is powered off.
The flight distance exceeds the remote control's signal transmission range.
There is an obstacle between the remote control and aircraft.
The flight control or transmitter signal is interrupted by strong external electronic interference.
To ensure the successful return of the aircraft if it loses flight control connection, users must
confirm that the aircraft has enough GPS satellites to fly safely in GPS mode. Users must also
be certain that the flight environment is clear enough for an emergency return and landing.
If the aircraft's GPS satellites drop below 6 for more than 20 seconds while the X4 is returning
to Home Point, the aircraft will automatically descend.
The X4 cannot avoid obstacles automatically while in Failsafe mode. Users may set the Return
to Home height to avoid running the aircraft into obstructions.
16