The terms of an airline company regarding their checked baggage rules refers to two concepts: Piece and weight. A section of the "weight" concept mentions "Marine Fares of Economy Class". What does this "marine" mean for me as a passenger?
1greyshade's answer seems like a reasonable interpertation. Given the... idiosyncratic nature of the English on the page you link, I suspect that, if there is a standard term for this, it's not "Marine Fares". (Generally, "marine" refers to the sea; "maritime" refers to ships, sailors and so on.)– David RicherbyAug 23, 2014 at 14:33
A lot of airlines seem to have special conditions for seamen having to travel from one port to another via plane.– PlasmaHHAug 23, 2014 at 15:24
@DavidRicherby Another guess might be that their use of the term 'marine' is and accidental 'generalisation' of the term 'marine' as in 'navy soldier' to seamen in general - though all of these speculations might be more a topic for english.SX..– greyshadeAug 23, 2014 at 20:16
@greyshade In one of those moments of clarity that comes when you see something again after not thinking about it for a few hours, the word they actually want is almost certainly "mariner", i.e., sailor.– David RicherbyAug 23, 2014 at 20:21
@DavidRicherby well, there you go - you're most probably right there.– greyshadeAug 23, 2014 at 20:30
On the page for excess baggage charges there's a separate section
For seamen traveling within Europe
which strongly suggests that's what your "Marine" refers to - a seaman.