From the other side…
My father was a ship captain. He spent most of his life on the water, far away from home. Now he is retired (does any captain ever retires?)
Influence on our family? Let’s say in this way, he is happily married for 33 years with my mother, they never had any big problems with that, they have two kids (adults now :)) .
Before you marry a woman there are just few rules, be sure that she is very strong, independent, capable for living alone, and on the other side be very honest about what you really do and how hard that is. Not to mention that she has to be “old school” woman, very devoted and faithful (same rule for you I heard about all adventures you can find on your way).
General statistic is not good. From all my father’s friends, who had similar job like him, only two families stayed together. It has very strong and it has not good influence on family friends too.
Your future wife has to be prepared, seriously prepared, and very rational, you have to be brave to, before ask her to marry you, to ask her to understand that you will not change your job, and even when you get kids that, you will stay what you are. That is a hard bargain and a gambling too. My father did that, he openly asked my mother and he never regretted.
As for a kids, boys are better with dealing with that, my brother was very ok, but girls are a little bit more sensitive. What to say, my father is a ship captain and I am naval architect, that is how girl misses her father.
I am always optimistic, it is hard, but it is possible.