Here is another one I am working on...the F-3 Raptor. It is intended to fill the Runabout role, but have much stronger weapons, armor and shields.
She is 25 meters long, has external racks that can carry full size photon torpedoes, phaser pallets and jamming pods, as well as 2 Defiant style pulse phased distruptor cannons and phaser banks/microtorp launchers.
The pulse cannons have the same power as their counterparts on the Defiant, but have a much slower firing rate.
Her general strength is somewhere between a Runabout and the Defiant, but lacks the Runabout's range or the Defiant's ablative armor.
Still working on the mesh, lacks smoothing and textures at the moment.