And not even that. In the old Elite it was the vessel of choice for water based aliens to hold an aquatic environment *inside* when they were roaming the stars. In Frontier it was turned into a space vessel based on an old design for a seafaring battleship. The Moray being a submarine spaceship is a continuously repeated misinformation.
Ah, ok... I was sure I read otherwise, but thinking back, I could have imagined it. It was, after all, a very long time ago.