Thank You. It's an original design. My original idea was to make a TOS era Remora-class Escort, from the Fasa game.
The Hull isn't intended to seperate. It's a little, mass produced frigate and lacks some of the bells ans whistles that a nice, Constitution Class Cruiser has.
The TMP-era sensor is a a Planetary Sensor, specifically for supporting ground operations.
I had planned to give it four TMP/style phaser banks, but research showed that in the original TV show, the ring around the bottom sensor (on the primary hull) was refered to as the 'phaser turret". That explains the lack of obvious weapons.