Typical designs of the era would use a side-mounted door for access, but the Ar 232 used hydraulically powered clamshell-doors on the rear of the bay with a ramp to allow cargo to be rolled into the hold.
RS-232 | United Airlines Flight 232 | Arado Ar 234 | Centigrade 232 | Ohio State Route 232 | Arado SD I | Arado Ar 66 |