Safety Features And Actions During Poor Gps Signal Reception - Yamaha RMAX Type II G Unit Operation Manual

Pre-Flight Inspection Items
Safety Features and Actions During Poor GPS
Signal Reception
The GPS control operates by receiving radio sig-
nals from 4 or more satellites. It may become inop-
erable depending on the surroundings, terrain,
weather conditions, time zone, and other reasons.
If the reception of GPS signals becomes poor while
operating in a GPS control flight mode (SG, CG, or
AG), a safety feature will cause the outer and inner
lights of the orange GPS indicator lights to flash
alternately. Then, the system will automatically
effect flight control or switch the flight mode as
described below. Thoroughly familiarize yourself
with this feature to take the appropriate actions.
G Operating in SG mode
As the GPS signal reception worsens, the orange
GPS indicator lights will cycle through "outer lights
ON > inner lights ON > OFF", and the brake control
will be applied only in the longitudinal direction of the
helicopter. At this point, quickly turn OFF the GPS
control switch. Because GPS control cannot be used
even before the GPS control switch is turned OFF,
the helicopter will operate in the slow flight mode.
This flight mode is not suitable for aerial application.
In addition, GPS control will not resume even if the
GPS signal reception improves. When the GPS
control switch is turned OFF, the GPS indicator light
will turn OFF and control will switch to S mode.
Therefore, operate carefully.
If the stick on the transmitter is moved past
the neutral (center) position to stop the heli-
copter when it is flying forward or backward
in SG mode, the automatic brake control will
be applied together with the operator's brake
control if the GPS control is canceled. As a
result, the nose of the helicopter will tilt up to
an excessive angle.
G Operating in CG mode
As the GPS signal reception worsens, the orange
GPS indicator lights will cycle through "outer lights
ON > inner lights ON > OFF". Control will switch
automatically to C mode. At this point, quickly turn
OFF the GPS control switch and operate carefully.
When the GPS control switch is turned OFF, the
GPS indicator light will turn OFF.
G Operating in AG mode
As the GPS signal reception worsens, the orange
GPS indicator lights will cycle through "outer lights
ON > inner lights ON > OFF". Control will switch
automatically to A mode. At this point, quickly turn
OFF the GPS control switch and operate carefully.
When the GPS control switch is turned OFF, the
GPS indicator light will turn OFF.
3-15
NOTICE
Brake control
Poor GPS reception!
(Warning pattern on GPS
indicator light)