Currently, we have a large trading ship (the T-9) and a large combat/multipurpose vessel (the Anaconda). Now, how about a large ship that is geared to exploration?
It's defining feature would a very large FSD housing, larger than that of any other ship. So, maybe class 7 or even 8. That would allow it (when fully upgraded to an A7/8 drive) to make longer jumps than any other vessel. Other than that, it wouldn't be too suitable for anything else: only small and medium hardpoints, little cargo hold, just enough space to hold the necessary sensors and a large enough fuel scoop.
It's defining feature would a very large FSD housing, larger than that of any other ship. So, maybe class 7 or even 8. That would allow it (when fully upgraded to an A7/8 drive) to make longer jumps than any other vessel. Other than that, it wouldn't be too suitable for anything else: only small and medium hardpoints, little cargo hold, just enough space to hold the necessary sensors and a large enough fuel scoop.