Does a bow thruster slow you down?
I get it...I mean, that it helps you dock. And I get the thrill of a new gadget. I even get the silent, perverse thrill of having people at the dock notice I've got a new toy. But when the 'oooh's' and 'aaaaahs' fade, and the ego returns to it's slightly swollen normal size, does the hole in the bow make the boat go slower than it did before it was there? If so, by how much?
Oh, and for the engineers that circle here, above us, casting pearls of wisdom and math (and I do thank you)....by "by how much" I don't want a quantum mechanics level explaination. I just mean, like, ummm, noticably? or not?
Thank you, friends.