Operation Manual IQ-MOTOR-eco GPS
2.3
Speed
Apart from Vario and altitude the flight through the air
(= Airspeed)
is indeed one of the decisive
messages. By use of a precisely indicating speedometer it is possible to increase air safety.
2.3.1
Wind vane sensor
The IQ-MOTOR-eco GPS is provided with a very precise speed measuring system, i.e. one entry
with evaluation electronics for Flytec wind vane sensors. Advantage: wind vane sensors trigger
correct readout already from approx. 1 km/h speed,
these sensors are also perfectly suitable for
detection of weakest wind strength values at starting site
. (Wind vane sensor optional)
The speed indicator can be precisely gauged by correction factor.
Factory setting is 100
%
by default.
Main Setup Menu
Speed
Sensor setting wind vane
Due to these speed dependent correction factors it is possible to slightly rectify faulty
measurements caused by inappropriate placing of the sensor inside lee position, or of the blister
in front of the body.
The wind vane sensor measures the true airspeed (True Airspeed = TAS).
With plugged wind vane sensor the speed indicator shifts from GND to AIR (airspeed).
GND speed is displayed on page 4 together with the glide ratio air and glide ratio ground.
Remark
: page 4 can only be selected with plugged wind vane sensor.
2.3.2
Stallalarm
This function is only enabled when using the optional wind vane sensor.
This alarm is
consisting of a deep tone with short beeps and always with 100% sound level.
Under
Main
Setup Menu
Speed
Stallalarm
it is possible to determine the speed of
s
tallalarm.
If the stall alarm is set to the value of 0 km/h, the alarm is then switched-off.
During flight the stall alarm can be switched-on or switched-off by
prolonged pressure on the
key Alarm
Stall by use of the keys F1 / F2.
2.3.3
Speed without speed sensor
Frequently pilots fly
without any speed sensor
. In this case only the speed over ground
(GPS speed) shall be displayed.
