78puget-trawler
Guru
Back in the 50's my dad had an old wood tug with a Fairbanks Remorse in it, about 150HP. He then repowered to a 6-71 and liked it a lot. He went back to back with another tug with an older eng of similar HP, forget the make but it was an old heavy duty of some sort. The 6-71 quickly pulled the other tug backwards, the skipper freaked because he had an open hatch on the back deck and water was running into it! I spent a little time around a 6-53 in one of dads trollers, good engine but horribly noisy.