Brauniger IQ-CLASSIC, Operating Instructions Manual

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evaluation later on, a saving interval of 5 sec or less is
essential. If your GPS only has a memory for 1,000 track log
points, the longest flight saved can only be a maximum of 83
minutes in length.
Wind speed and direction
Similarly, wind speed and direction can also be determined
from the recognisable differences in speed when circling above
ground and a comparison of the relevant flight through the air.
As soon as you have flown some circles, wind speed and its
direction (in degree) are automatically displayed instead of the
time every second. After approximately 2 min. flying straight
ahead, this display will disappear again.
For paraglider pilots : If you are flying without a wind-wheel
sensor, this display is also shown with reduced precision.
Important : Always circle at the same speed.
Final approach computer
GPS data and the McCready theory operate hand in hand here.
In principle, it is a question of reaching a target point (it must
naturally be contained in the memory of the GPS receiver) as
quickly as possible, or receiving an indication from the flight
instrument as to when the current thermal can be exited to
allow the waypoint to be reached as soon as possible.
The GPS supplies data on the distance and the direction to the waypoint as well as your own
flight direction; the altitude of the waypoint is also hidden in its continuously transmitted
name. (see further on). The IQ-Comp. knows the current altitude height of the pilot. If you
divide the distance to the target by the existing difference in altitude, you will get the
required glide ratio above ground to the target. The higher you circle upwards, the more the
required glide ratio to your target will decrease.
As soon as a waypoint has been activated on the GPS using the “Goto or the Route function”,
the two beam displays gain a new significance. The lower beam displays the required glide
ratio described above while the upper beam displays the glide ratio that can be flown in calm
air ( = without any vertical air movement), dependent on the current speed, the polar and the
wind component.
Put simply : You can start flying when the upper beam is the same size or is longer than the
lower beam.
Basically, a final approach consists of two phases that must be viewed separately from each
other.
gps