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Operation Manual IQ Motor+
2.) Gliding down to Goal
The pilot has left the thermal with sufficient safety altitude above the path of best glide and
is heading towards his goal. He should speed up until the readout display "Diff.BGWayp" will
slowly begin sinking. This indicator shows that by flying faster one will slowly give up the
reserve altitude. However, one should be prepared to encounter sinking air mass or head wind.
This situation is indicated by the readout of "Diff.BGWayp"
by the para glider symbol of the final approach screen which is moving faster towards the
point
of
intersection.
For all previously made considerations we assumed that the wind component is automatically
calculated from the difference:
justify to overwrite this automatically logged
1. While circling up in thermals the wind prevailing outside of the thermal shall always
be stronger than the measured one. The strength is dependent on the value of climb
and also on the fact if the pilot is at the top or at the bottom of the thermal.
2. As for the final approach, also slight wind fluctuations, for ex. induced by yaw, will
take effect on the pre-calculated arrival altitude. A wind component logged as fixed
value shall then calm the result.
3. When the pilot being in down glide from high altitude knows by experience, in which way
the wind shall change in the lower layers, he can consider this fact already in advance.
4. When para glider pilots are flying without Speed sensor, the manually logged wind component
can provide a significant improvement of final glide calculation.
11.4.2 Safety altitude (Alt a. BG)
The display „Alt a. BG" indicates the pilot's current altitude above (or below) the best
glide path leading to goal. The safety altitude (Alt. over Alt a.BG) is also that altitude which
one could safely lose when flying through a sinking air mass and still make it to goal.
„Alt a. BG" can also be shown continuously in the user selectable fields. It is only then
„Alt
a.
identical
to
The fields „Alt a. BG" and „Alt a. WP" will switch to inverse display during thermal circling
at the moment when the pilot could leave the thermal (Alt a.BG) in order to just arrive;
or when the pilot should definitely leave the thermal (Alt a. WP) in order to reach the
selected WP as fast as possible. (please see picture on page 17).
11.4.3 Final glide calculation over several Waypoints
As of the IQ Motor+ a new user selectable field „Alt a. Goal" has been added. This is a pre-
calculation, based on best glide ratio, of required altitude above (or below) the last WP of a Route,
irrespective of how many WP's are still in front of the pilot. The related actual wind vector is taken into
account for all sectors, as well as the various glide ratio values resulting from it.
Naturally this result requires that the detected wind does not change on the way to goal.
The wind vector is updated again by each flown full circle.
In
this
case
it
Gndspeed – Airspeed.
Spd-Diff
WP"
if
the
pilot
which is quickly reduced, and also
is
recommended
However, there are good reasons which
with a manually entered value.
is
flying
with
the
64
to
fly
more
slowly.
speed
of
best
glide.
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