16' Apache fiberglass airboat This is a very stable boat. It has the very popular 500Cubic inch Cadillac engine on it with a two bladed carbon fiber prop. I replaced the 4 barrel carb. last year. I just changed the oil and fuel filter and the air filter, she runs great. It's a older boat and it has some areas with rust that will need to be replaced at some point in the future. it's a lot of bang for the buck. I've enjoyed it for the last 7 years.