Nav Flashcards
VOR
VHF omni-directional radio range
line of sight
bearing selector, course dev. ind., TO/FROM ind.
how to use VOR (mneumonic)
SITS
select freq.
identify (morse)
test
set heading and OBS
NDB
needle always points to station
mag. heading + relative bearing = bearing to station
variation
angular drift between true and magnetic north
deviation
magnetic vs. compass north
great circle
shortest distance between 2 points
rhumb line
line crossing all meridian at same angle
double track error
works before halfway
find how many degrees off, double that, adjust heading
fly new heading for equal amount of time off
adjust heading back by half when on track
opening + closing angles method
best after halfway
find degrees off track and to destination and add to find correction to destination
1 in 60 rule
1 degree off after 60 min. = 1 mile off
dist. off track / dist. travelled x 60 = degrees off departure