I am in Navy. As you know a ship remains at sea for quite a long period, a ship provide all the basic facilities to its crew which are necessary to live a clean, comfortable and respectable life. We have our own cabins, clean water, clean space for prayer and time. Even at port we live in ship and avail all these facilities. As this is our profession and we travel throughout the world not as a passenger but as an employee. Question is: Does QASR namaz conditions apply to us or should we offer normal prayer.
Considering that your conditions are that you live in a home away from home then you should perform your prayers in the complete manner. The shortening and combining of the prayer does not apply to your situation because the ship, for that chunk of time, is your home. The only difference is that it moves around. You have all the amenities and you should take advantage of worshiping your Lord as He has given you convenience enough to reach out to Him, completely. Keep in mind that shortening and combining prayers for the traveler is not mandatory but an easement to lessen any burdens upon us.
I hope I have clarified the issue.
God knows best.