Flight Manual for Gas Balloons of Type NL-STU
Issue 2.0
May 02, 2016
Page 3-3
3.3 Closed appendix during take-off and ascent
WARNING:
Take-off with the appendix closed is not allowed –
Take-off prohibited!
If the appendix cannot be reopened during flight, and the expansion of the gas resulting from
increasing temperature and altitude creates an overpressure in the envelope, the emergency
opening, if present, must be opened immediately. The following procedure must be observed:
If the balloon has
no emergency opening
or if the emergency opening cannot be opened, the
following procedure must be observed:
WARNING:
The appendix must never look taut!
3.4 Overcoming obstacles at low altitude
If, during low-altitude flight, a pilot detects an obstacle very late, he must quickly decide whether
it is possible to rise above the obstacle safely.
CAUTION:
The effect of dropping ballast to cause the balloon to gain altitude or pulling the
parachute to lose altitude always sets in with a delay.
If the time and/or height is insufficient to fly over an obstacle that has been detected late, a
forced landing before the obstacle is the better option. This applies in particular if the balloon is
already descending.
Emergency opening:
The securing mechanism of the emergency opening must be released
by pulling firmly on the yellow emergency opening line. Continuing to
pull on the yellow line releases the emergency opening tongue from
the envelope.
Flight:
The flight may be continued as planned.
Parachute:
The parachute must be opened at brief intervals to prevent the envelope from
bursting
Flight:
The flight must be continued at low altitude in order to be able to land at the
next possible opportunity.
