Continued from thread:
http://therebelfaction.com/forums/showthread.php?t=5644
In this case specifically frigates, ships about 300-400 meters long.
In my readings I have never heard of a ship that could not enter an atmosphere save for the very large ships. From my understanding, all ships are capable of entering an atmosphere so long as they have shields, inertial dampeners, engines and repulsors. All standered equipment on star ships.
There are ships that lack landing gear but that does not mean that they burn up in the upper most levels of the atmosphere.
The official word on this would be appreciated.