Just purchased the Carrack also got a polar paint job for it I have that on my Connie and really like it . Also bought some smaller items an Origin shirt and a couple Jukeboxes one for the 600i and one for the Carrack . One more thing what is the largest vehicle the Carrack will fit in it would it hold a tank ? .
A list of what fits inside :
1*Buccaneer
1*85X
1*100i
2*M50
2*MPUV
3*Razors
3*P52/72 (in hangar) + 2*P52/72 in vehicule bay (so 5 total at once)
and so on (Pisces and small vehicles...)
You can fit a buccaneer in the carrack without issue (unlike what most internet says). That ship needs to be angled 45° when landed, not parallel or perpendicular. Hangar close without issue.
This is a nice little carrier ship.
And for all those ships you can close the hangar / vehicle ramp without issue.
Arrow will fit if you raise landing gear. You can close the hangar but the arrow is not totally secured and can glitch in hangar.
As for vehicles its only all those under Ursa size included (in hangar), though you can stuff a Ballista/Tonk on top of the Carrack on the grid but its glitchy.
edit :
@Lethal1961 modified post and added pic