53
Tip: Fundamentally, you should respond to all out-of-control
behaviour by completely releasing both brakes (both hands
up).
Deep stall
The BIBETA 4 cannot go into stable parachutal stall by itself. The
wing can be brought to the point of parachutal stall, however, by me-
ans of the brakes, and can stay there (see chapter Flying with a Wet
Glider).
Caution: If you pull the outer A lines past the marks when
applying big ears the glider can go into parachutal stall.
Landing
Thanks to the precise handling and long brake travel the BIBETA 4 is
very easy to land.
Always fly a proper landing circuit with a defined final approach, with-
out rolling and pitching. From full speed apply the BIBETA 4 brakes
continuously, finally going through to full brake. By making this kind of
‘fully flared’ landing the speed can be brought to a minimum, and the
passenger set down softly.
Caution: Don’t fly steep turn reversals near the ground.
These are dangerous and could lead to strong swinging.
Caution: Never get below minimum speed when top landing,
or on final approach.
Caution: Be aware that your glider is much less manoeuvra-
ble when fully braked.
Caution: Never let your glider fall forward on to its leading
edge. The internal pressure surge so caused can tear the cell
walls and damage the leading edge.
Flying with a wet paraglider
When flying with a wet paraglider there is a risk of a deep stall. A
deep stall frequently comes about from a combination of several fac-
tors. There is the increased weight of a wet canopy with a resulting
higher angle of attack, which tends to bring the paraglider closer to
the deep stall point. Also, the presence of water droplets on the fab-
ric has a detrimental effect on the laminar boundary layer in the nose
area, causing a significant reduction in the maximum achievable lift
coefficient.
Summary of Contents for Bi Beta 4
Page 1: ...1 BIBETA4 Betriebshandbuch User manual Manuel d utilisation...
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Page 3: ...Deutsch Seite 5 32 English Page 35 61 Fran ais Page 63 90...
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Page 105: ...ADVANCE Thun AG Seestrasse 14 CH 3602 Thun...
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