On: Biggest amateur-built sub sinks – owner is suspect...

[jacquesm]

Hatch open or closed doesn't even matter, it's just that with the hatch open it will go down a lot faster and the interior will be flooded.

[_r0fz → jacquesm]

That... matters. A lot. Where are you even coming from where "the interior will be flooded" doesn't matter _for a seagoing vessel._

[jacquesm → _r0fz]

If you want to sink it.

[tyingq → jacquesm]

Sure. I suspect seawater in the interior was the whole point in this case. Reaches every nook and cranny.