The correct answer is indeed a WIG or
"wing in ground" effect aircraft.
1 point to Jeff for the first part of
the question.

So does this mean Commorants need to
display flashing red lights?

http://www.mbr-pwrc.usgs.gov/id/framlst/i1200id.html

The other answers--lightship, etc, as far
as I know are not correct, but may be using
this sort of display in practice.

Not that you are likely to see WIG flying
around soon. Also, part 2 of the question
logically follows, the WIG craft must stay
the heck away from other vessels who could
not avoid a WIG if they wanted to.

The main point I wanted to make was there
are new rules, and the rules have not been
updated except as addendums.

Thanks Jeff for posting the link to these.

If we want to carry on the discussion.

What are the other new changes to the
Rules of the Road?

Bart

"Jeff Morris" wrote

A lightship?

Or how about an aircraft carrier, or ships that receive helicopters?

And of course, under the new rules, a WIG taking off or landing.

"N1EE" wrote in message
om...
What sort of vessel must operate with
an all around flashing red light?

What right of way rights does it have?

Bart Senior