Getting vulched on landing is more of a problem than taking off. As others have previously stated, you can take off from other fields to enter a fight, but your options are usually limited as to where you land.
For example, I upped into a furball without incident and was able to get 3 and 2 kills. Upon landing my heavily shot up fighter on the runway, I was vulched both times and killed just 3 seconds from ending the flight. There were plenty of friendly targets all around me, but the

decided to go for the easy kill on the ground.