what are the diffrent types of airspeed
IAS - indicated (measures dynamic pressure)
CAS - IAS corrected for errors in pitot/ static
TAS - actual speed through the air
GS - TAS corrected for wind
what is load factor
the ratio of lift force produced by the wings compared to the weight of the aircraft
what is max range
achieved when the aerofoil is flying at its best lift to drag ratio ( the most amount of lift to the least amount of drag)
what is max endurance
achieved with the best lift/drag ratio with the least amount of power required
how long are TAFs valid for
12 , 24 or 30 hours
how long are GAFs valid for
6 hours
how long are ARFOR valid for
12 hours