Never sailed on 'em, but I am intimately familiar with them. The Reliance class underwent a major service life extension in the late '80s-early '90s. The hull plating was replaced to meet original mil-spec. The entire interior was completely stripped out, right down to the keel. The engine room, electrical, piping, quarters, everything was replaced brand new. They used to have stern exhaust, but as you can see in the picture, that too was replaced. One of the reasons they always looked stoved in, was that they were regularly sent out on search and rescue in the shittiest sea conditions... but always came back.