Navigation Flashcards
Types of aeronautical charts
Sectional
VFR terminal area (Class B)
World aeronautical
Variation
Angle between true north and magnetic north
Shown as broken magenta lines = isogonic lines
Agonic line = no variation between TN and MN
Flying an accurate course
TC measure from TN not MN
Factor in magnetic variation, compass deviation, wind
Compass deviation calculation
East is least (subtract) and west is best (Add)
Wind impact on navigation
Heading vs track
Drift angle
True heading caculation
True course plus wind corrections
TH +- variation = magnetic heading +- deviation = compass heading
Determine Wind Correction Angle
Course = intended path
Fuel consumption
Pounds of fuel per hour
Divided into NM per hour of travel
Resulting in specific range value
NM per 1000 lbs
Pilotage
Navigation by reference to landmarks or checkpoints
Wind triangle
Review calculation example
Flight planning
Materials, weather check, Chart Supplement US, AFM/POH, weight and balance, takeoff landing distance, elevation, temperature, fuel consumption
Dead reckoning
Navigation by means of computations based on time, airspeed, distance and direction
Adjust by windspeed and velocity to get heading and HD
Charting the course
Draw line on sectional, Mark checkpoints, check airspaces, obstructions, altitude, distance between checkpoints, TC+-WCA=TH+-V=MH+-D=CH, GS, total time
Ground based navigation
VOR, NDB, GPS
VOR
3 NAVAIDS: VOR, DME, VORTAC
VOR ground stations
Frequency band 108.0-117.95, line of sight, at 1000ft AGL about 40-45miles
Terminal, low altitude, high altitude
Test facilities, airborne and ground checkpoints