Flytec 5030 v2.24 * - Manual (Page 16)

Flytec
5030 GPS
1.8.11 XT Error, Crosstrack Error
This userfield shows the shortest distance (Perpendicular on a map) to the active leg of a
route
Pos 3
Start goal
Waypoint
Positive
value
Negative
value
The accuracy of the indicated value depends on the length of the active leg. Largest
inaccuracy arises in the centre between start and a goal, if one is very close at the track (the
angles become very flat). With 50 km distance between start and a goal the inaccuracy can
reach up to. Positive values are indicated, if one is on the right of the track, negative values
on the left of the track. Even if one flew over the next waypoint the distance from the straight
line is indicated (see position 3)
1.9 Speed to Fly (For best Glide)
Please look at the Analogue Speed scale. On the right hand side of it there is a thick arrow
which informs the pilot of the speed for best glide. This will show the optimal glide speed,
which is dependent on the polar of the glider, the wind strength and direction and the
rising/sinking of the surrounding air. In competition, a pilot will always fly faster than this
speed indicator is recommending except when every meter of height is essential.
(Please see also 5.4 – Polar curves and required speeds.)
It does not matter whether the pilot has chosen to set true or indicated airspeed, as
Flytec 5030 GPS compensates for this. However, the true value of the best glide speed will
increase with increased altitude. (See also 5.3 - True or Indicated Airspeed.)
1.10 McCready Ring
The single pointer at the climb range of the analogue vario, shows the value of the
McCready ring.(See title photo)
The position of this arrow is dependent on the polar of the glider, the wind, the rising or
sinking air and, above all, the flight speed. If a pilot wants to complete a competition task in
the shortest time possible, then he/she needs to strive continuously to keep the McCready
pointer as close as possible to the average climb rates achieved in thermals. Due to the fact
that the indicator is dependent on many conditions, we call it an active McCready pointer.
(Please refer to: 5.5 McCready Theory.)
By pressing the key McCr /Mark it is possible to turn the McCready sound on or off. The
pitch of the tone is linked to the pointer. That means that the zero point of the McCready
acoustic is set to this value where the McCready pointer actually points to. Adjust your speed
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