Well it took a few months to get this far in the R&D department, inthe twilight of the PGC I came up with the ideal loadout for a Y-wing. As well as the tactics for using it.
Utility craft typically lack the speed or turn rate of interceptors but they make up for it in tactical flexibility and sheer firepower. For instace the Y-wing is the only ship able to carry 9 guns, total plus the counter measures and mine slots making it a deadly opponent however the Y-wing is the only ship able to fire all of it's guns dead foreward giving it a deadly frontal fire vector.
In short, the Y-wing might not be as fast as other ships, it might not even turn as tightly, but it can carry more guns, put more of them on a given target and has more tactical flexibility.