Tube size
I had an Achilles for eighteen years of serious use, then sold it, still in good shape. A GREAT buy.(They did have one terrible year when they had to destroy several thousand defective boats, however). And, I have a Tinker Tramp, which I bought used in 1994. What a great boat....they actually do sail quite well, which is fun, although the rig is a bit more tedious to set up than they imply. I happened to have the opportunity to video an offshore, heavy weather test of the Tinker, set up with the liferaft option, vs. a Switlik offshore liferaft. Surprise, surprise, the Tinker was WAY better, much more capsize resistant. Plus, you can sail it to safety. Quite amazing to find something that purports to be a good tender, sailing inflatable and liferaft, and to find it is actually all three. Two years ago, when I sold the Achilles, I bought a two year old Avon Rover 3.11 with inflatable floor. That boat has been great but the floor was a nightmare. To my surprise, I found that the famous Avon ten year warranty does not include floors, which have a one year warranty. That goes for the hard hull of a RIB, a regular floor, or the air floor. But Avon, good guys that they are, replaced mine. The new one, built very differently, seems pretty good, so far. I agree that a hypalon floor, a la Achilles would probably be better. My conclusions are that most of the name inflatable boat builders (notably excepting the infamous Zodiac) build and backup a very good boat. But, do insist on Hypalon. An important decision, however, is the size of the tubes. Bigger is much better. The Achilles had fairly small tubes, 14 inches I THINK. The Tinker has 16 inch tubes which are much better, and the Avon has 17 inches which is better still. This applies to the handling and the dryness of the boat and the comfort. When it comes to inflatables, tube size MATTERS. I think you can make a good case for "the biggest one you can carry", or "something more handy", but there is no getting around the advantages of big tubes. And be sure the OUTBOARD is something you can lift or otherwise handle on board the mother ship. If it falls or bangs anything (let alone tumbles in the water) the consequences are disappointing.