Related Clues:
- ''H'' on a frat sweater
- When touchdown will be, probably: Abbr.
- ___ Kappa Nu (honor society)
- Timetable stat.
- Passenger's concern, briefly
- H, to some
- Cruising level, for ex.
- Jet level: abbr.
- PC key near Shift
- Flight height: Abbr.
- Voice under sop.
- Guess announced by a pilot: Abbr.
- Flight stat
- Cockpit guess, for short
- H, as in Hippocrates