I am seaman by profession sailing 9 months on board through out the world,stay only one or two days at port, and 4 months vacation at home,so during sailing how I should pray namaz full or qasr if qasr how many raqat for each namaz,please give me details, be because I am in confusion also for ramzan roza should we do roza or maaf roza during sailing please give me answer OK
Thank you.allah haafiz

Assalamu wa alaikum,how many qasr namaz we have to pray during sailing in ship,for 9 months we are sailing all over the world,so how many raqat namaz we have to pray during each 5 time namaz, please give me answer in detail