The Lark MK3 has its wing tips split and folded up and down, this reduces the width by 4 meters without sacrificing any systems. The added wing tip increases the mass slightly but the MK3 is much more suited to compliment a carrier than it's full width brother.
The MK3 is also equipped with a modified power system for slightly higher output but she has less overdrive so top speed is slightly lower. The IR missiles have also been replaced with Radar missiles as these ships are designed to be carried and engaged in fleet operations.
