Comment by noitpmeder

Realistically these things aren't going to be operated in-flight anywhere close to the proximity of other craft. They'll motor from dock out to a predefined and clear[able] "runway". Once you're clear of a port most stretches of open water are mostly empty (even those within sight of shore) -- it should definitely be possible to plot "cruising-altitude" courses that never place you within (N) of a hazard. And if there is ever any uncertainty or doubt about incoming situations you can always drop down to a safer mode to chart a new course.