For the rebels to win how far off the table does the CR 90 have to get?

Is it slightly out the play area i.e. if it was a small ship clipping the edge it would be destroyed. Or does the whole ship have to be off the play area?

I'm taking a stab in the dark here as I don't have the CR90, But I would assume once you hit the table edge, you're off. Every other ship is considered off (and destroyed) once you hit the edge.

Yeah that's the way we played it in the end, we both just thought it just felt a little odd that the CR-90 was only clipping the play area with most still in play. Enough that it would have taken 2-3 more moves to get the ship fully off.

I was hoping that someone may have come across something in the rules that I missed.

I was thinking that to count as fleeing the Rebel player should get an un-crippled section off the board edge. For example the front section is un-crippled and manages to flee, even if the back section is subsequently crippled the ship it counts as a win as it is no longer possible to damage the front.