Also, a system failure on an airplane has a much higher risk of a catastrophic event compared to a ship. If an airplane lose both of it's engine, it's gonna gl

Also, a system failure on an airplane has a much higher risk of a catastrophic event compared to a ship. If an airplane lose both of it's engine, it's gonna glide but you're still at risk of crashing if you're far from a viable landing zone. If a ship lose its engine, it's still floating.