Alternates

Question 1

Takeoff alternate is required, what conditions must be met to make it a legal option

Answer 1

Must be on the dispatch release, within 1 hour flight time of departure airport, normal cruise speed, still air with one engine inoperative

Question 2

Destination alternate must be filed when:

Answer 2

Follow the 1,2,3 rule (1 hour before to 1 hour after 2000 feet ceilings 3 miles visibility if conditions are less than this get your alternate filed)

Question 3

We derive alternate weather mins by

Answer 3

Following a table. 1 NAV add 400 add 1 mile vis, 2 NAV add 200 and 1/2 mile vis

Question 4

Takeoff alternate must be filed….

Answer 4

When reported visibility at departure airport is below landing mins required for runway in use