The Simple Nominal Flight (For The Best Glide); Optimised Nominal Flight According To Mccready - Brauniger IQ-CLASSIC Operating Instructions Manual

The simple nominal flight (for the best glide)

adapts your speed by flying faster or slower so that you are always flying with the best glide
dependent on the surrounding air.
The pilot, who follows the nominal flight arrows contained in an IQ, will therefore arrive
highest when crossing valleys or make the greatest progress on cross-country flights. If a
GPS receiver is connected to the vario, headwind or tailwind components are also taken into
consideration with the nominal flight arrows.
This is conditional on the polar being entered as precisely as possible and the use of a vane-
wheel sensor for airspeed measurement.
The deviation in speed from the ideal nominal flight until the appearance of the simple
arrow can be set in setting mode no. 22.
We recommend:
for paragliders
and for hang-gliders 3 ... 4 kmph
Select the lighting up of the twin arrow with no. 23.
For paragliders:
For hang-gliders:

Optimised nominal flight according to McCready

In contrast to simple nominal flights, it is possible to carry out a
flight in the shortest possible time with the help of McCready's
theory. When steep climbing is possible in thermals, it is clear that
people prefer to climb a little higher and fly faster in the following
glide than to leave a good thermal as soon as possible to then head
for the next source of thermals or landing site at the best glide ratio
(at a fairly slow speed).
McCready found out that, for a given polar, there is only one
descent altitude that allows the destination to be reached in the
shortest possible time. This departure altitude is determined by the
average climb in the thermal and by the wind component and, of
course, by the distance to the intended destination.
2 ... 3 kmph
approx. 6 kmph
approx. 10 kmph
Press and hold
This will flash
flight
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