How many hours in advance of departure time should a flight plan be filed in the case of flights into areas subject to air traffic flow management (ATFM)?
a. 3.00 hrs
b. 0.30 hrs
c. 1.00 hr
d. 0.10 hr
a. 3.00 hrs
b. 0.30 hrs
c. 1.00 hr
d. 0.10 hr