ATPL nav 5

What is convergence?

• The converging of parallels of latitude at the poles

• The converging of Meridians and parallels at the poles

• The converging of all meridians at the poles

• The converging of meridians at the equator

What is the departure formula?

• Distance(nm) = D longitude(mintes) x cos(lat)

• Departure(degrees) = D lat x cos(lat)

• distance(km) = D longitude(degrees) x cos(lat)

• Distance(nm) = D lat x cos(longitude)

What is the convergence formula?

• Convergence = D longitude x sin(longitude)

• Convergence = D lat x sin(longitude)

• convergence = D longitude x sin(lat)

• Convergence = D lat x tan(longitude)

The conversion angle is equal too?

• 1/2 the convergence

• 1/4 the convergence

• 2/3 the convergence

• 2 x the convergence

Radio waves follow...

• VORs follow Rhumb lines, NDBs follow great circles

• great circle tracks

• Rhumb line tracks

• VORs follow great circles, NDBs follow Rhumb lines

When plotting from a VOR where do you apply variation and convergence?

• Halfway between the VOR and aircraft

• At the VOR

• At the aircraft

• You dont need to apply them

When plotting with an NDB where do you apply convergence and variation?

• You don't need to apply either

• At the NDB

• At the aircraft

• Halfway along the route