I don't think I think of objects (boats, planes, spacecraft) as anything but "it" or "they". Hearing them described as "she" has always seemed strange to me, but fortunately it is not a big trigger. I just let people do what they want, because I don't have to do it myself.

Now, my cat is a she. And the other one is a he. I used to think of cats as "its" but not any more...