HSI trainer
Horizontal situation indicator with a VOR or ILS source. Heading bug, course pointer, CDI and TO/FROM.
North-up map beside the indicator. Heading card (rotates, lubber line at the top shows your heading) · orange bug = selected heading · course pointer and bar = selected course and your offset from it (the bar moves toward the course) · triangle = TO or FROM the station · dots = 5° each for VOR, 1.25° each for the localizer · right-hand pointer = glideslope. Turn to the bug heading, or tick NAV to let the autopilot intercept the course. Keys: ←/→ heading bug · Space pause.
Source--
Course--
Heading--
Distance--
Radial / offset--
TO / FROM--
Glideslope--
Mode--
Revise what you just saw. Practise the matching DGCA questions or flip through flashcards.