Operate
"Use, cause to use, or authorize to
use aircraft, for the purpose of air navigation
including the piloting of aircraft, with or without
the right of legal control (as owner, lessee, or
otherwise)." (14 CFR part 1)
O-Ring
A doughnut-shaped packing, usually
rubber, used between two moving parts to act as
a seal. Balloon heater and tank valves usually
have O-rings between the valve stem and valve
bonnet. |
Orographic
A term pertaining to mountains or
anything caused by mountains. As in orographic
wind wind formed by mountains. Orographic
cloud a cloud whose existence is caused by
disturbed flow of air over and around a mountain
barrier.
Overtemp (or Over Temperature)
The act
of heating the air inside a hot air balloon envelope
beyond the manufacturer's maximum
temperature. |
Oxygen Starvation
The condition inside a
balloon envelope where all available oxygen has
been consumed by the heater flame and additional
burning is impossible since propane must have
oxygen to burn. In extreme cases, the blast flame
and pilot light flame will extinguish after a long
burn or series of burns and may not relight until
the envelope has "breathed" additional air.
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