How can a pilot file a VFR flight plan
File it with a flight service station
When are VFR flight plans required to be file
For international flights
What is a DVFR flight plan
Defense VFR
Used for flights into air, defense, identification zones
Must depart within five minutes of departure time
Filed using FAA form 7233–4
 when you land at an airport with an ATC tower in operation will the tower automatically close your flight plan?
No, you need to close it with the nearest FSS
 how much time from the ETA does the FSS allow before search and rescue efforts
30 minutes