Index A B C I-1 balloon  aircraft  atmospheric  100-hour inspection .....................................................2-13 aborted landings ...........................................................7-11 absolute instability ............................................. 4-20, 4-21 absolute stability ..........................................................4-20 accident prevention ......................................................10-5 adiabatic process ............................................................4-5 advection fog................................................................4-19 aeromedical factors ........................................................9-1 aeronautical decision-making ........................................1-7 documents.................................................................2-11 log books ..................................................................8-14 maintenance..............................................................2-13 airman’s meteorological information (AIRMET)........4-39 airport/facility directory (A/FD) ....................................3-3 airport advisory areas.....................................................5-8 airspace classification ....................................................5-2 airworthiness certificate ...............................................2-11 airworthiness directives (ADs) ....................................2-14 air masses .......................................................................4-5 air mass thunderstorms ................................................4-27 air temperature ...............................................................4-1 alcohol............................................................................9-7 alert areas ............................................................... 5-5, 5-7 altimeter .........................................................................4-3 alto................................................................................4-15 America’s Challenge Race.........................................11-12 anabatic winds..............................................................4-14 animal populations .......................................................7-16 annual inspection .........................................................2-13 anvil stage ....................................................................4-25 appendaged envelope .....................................................2-4 application..................................................................10-11 approach.........................................................................8-2 angles..........................................................................8-5 area forecasts (FA) .......................................................4-39 ascents ............................................................................7-4 assembly.........................................................................6-9 atmosphere .....................................................................4-2 castellanus ....................................................................4-15 ceilings .........................................................................4-18 celsius.............................................................................4-3 certificate of aircraft registration .................................2-12 certified flight instructor (CFI) ....................................10-1 Charles, Professor Jacques.............................................2-2 chase crew......................................................................6-4 checklists........................................................................6-2 choosing a balloon .......................................................2-14 cirrus ............................................................................4-15 Class A airspace.............................................................5-5 brands .......................................................................2-15 certificate ..................................................................1-12 components.................................................................2-3 flight training..............................................................1-1 inspections ................................................................2-13 placement ...................................................................6-8 sizes ..........................................................................2-14 systems .....................................................................11-2 Balloon Federation of America (BFA)...........................3-3 basket ..................................................................... 2-6, 6-9 burner .............................................................................6-9 check...........................................................................6-9 ratings .........................................................................7-2 circulation.................................................................4-10 pressure............................................................... 4-1, 4-3 stability .....................................................................4-20 attention......................................................................10-12 automatic terminal information service (ATIS) .............3-3 automatic weather observing system (AWOS) ..............3-3 aviation digital data services (ADDS) .........................4-29 aviation forecasts .........................................................4-36 aviation medical examiner (AME).................................9-1 aviation routine weather report (METAR)...................4-37