pick up the Mesh Resize tool of http://sin.imperial.cc, the Star Wars Requiem site. You'll need to go under the modding section of the site's forums.
Then download it, a measly 40 kb file (and it's zipped, so it's smaller than that), and resize the bomber mesh to your liking.
Note- when using the resize tool, the value '1' is the models standard size. Think of decimals as percentages. If you want the mesh two or three times as big, just use the slider to get that number.