On: Heart aerospace completes first flight of largest electric aircraft

[Tuna-Fish]

They burn. But generally speaking, if the plane's structural integrity is degraded enough that the water gets into the battery casings, everyone onboard is probably already dead.

[hermitcrab → Tuna-Fish]

Depends. Everyone survived the famous ditch in the Hudson.

[vel0city → hermitcrab]

Would the famous ditch in the Hudson have broken the casings of the batteries?