Federal Aviation Administration PDAs & Smartphones FAA-G-8082-5 Manuale Utente
1. To perform a normal descent in a gas balloon,
it is necessary to release
it is necessary to release
A—air.
B—gas.
C—ballast.
B—gas.
C—ballast.
Answer B—Subject Matter Knowledge Code:
O150. Balloon Digest; Chapter 2: Theory and
Practice of Balloon Flight, page 9.
O150. Balloon Digest; Chapter 2: Theory and
Practice of Balloon Flight, page 9.
The gas balloon pilot can initiate a descent by
releasing gas through a valve at the top of the
envelope, and can then recover from the descent
or initiate an ascent by releasing ballast.
releasing gas through a valve at the top of the
envelope, and can then recover from the descent
or initiate an ascent by releasing ballast.
SAMPLE TEST QUESTIONS AND ANSWERS
BALLOON—GAS
2. What would cause a gas balloon to start a
descent if a cold air mass is encountered and the
envelope becomes cooled?
descent if a cold air mass is encountered and the
envelope becomes cooled?
A—The expansion of the gas.
B—The contraction of the gas.
C—A barometric pressure differential.
B—The contraction of the gas.
C—A barometric pressure differential.
Answer B—Subject Matter Knowledge Code:
O150. Balloon Digest; Chapter 2: Theory and
Practice of Balloon Flight, page 9.
O150. Balloon Digest; Chapter 2: Theory and
Practice of Balloon Flight, page 9.
As a gas balloon rises, it reaches an equilibrium
altitude. It maintains this altitude until some
change occurs. The most common change is in
temperature, either because of the natural cooling
encountered with altitude, a loss or gain of solar
heating, or an ascent or descent initiated by the
pilot.
altitude. It maintains this altitude until some
change occurs. The most common change is in
temperature, either because of the natural cooling
encountered with altitude, a loss or gain of solar
heating, or an ascent or descent initiated by the
pilot.
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