I used K_merse's and Maz1701's model as reference from here:http://armadafiles.com/files/armada-2/ships/federation/tng-ds9-voy-and-future/arrow-class-runabout-by-k-merse/detailsand here:http://www.dynaverse.net/forum/index.php/topic,163379058.0.html
STL (Stereolithography, filesize: 197 MB)