In the Star Frontiers System, canon says there is no artificial gravity. All deckplans are laid out in stacks of decks where the engines are down. When thrust is applied, the ship has gravity by virtue of thrust.
Enter the Serena Dawn, the first ship the characters travel on in SF0 - Crash on Volturnus. Crash on Volturnus is a classic module with one canonical flaw. The deckplan requires artificial gravity.
I used Inkscape to rough up a copy of the map. The light green areas are the bridge, purple are the engines. Early in the mission, the power goes dead, so you can't even say that having the engines pointing downwards out the bottom of this map helps.
It's a pretty big flaw. Maybe... maybe not. I love the Serena Dawn and I have a simple solution to fix it within canon.
I roughed out a side view of the ship.