I have a 10 year old Achilles LSR with roll up aluminium floor and inflatable keel
. The model I have is a LSR-104 which is the predecessor of the LSR-310E. The differences appear to be cosmetic, but there may be changes to how the floor is constructed so my remarks below may not be applicable to the current
For the first 5 years the aluminium floor was good. However, it the last five years corrosion
of the floor has been a problem, preventing the floor being rolled up. The interlocking aluminium strips get corroded at the "hinges", preventing the strips hinging fully. The problem is progressive, with the radius of the rolled up floor getting larger each time the boat is used. The only remedy I have found is to dismantle the floor, which involves removing each of the plastic end caps by drilling out their rivets, wire brushing the "hinges" to remove the oxide, and reassembling.
The aluminium floor is 30% of the total weight. It would be worth considering how this compares with the weight of a high pressure inflatable
The aluminium oars were too short to be effective. I replaced mine by timber oars with holes drilled in their shafts to fit on the rowlock pins. This arrangement has worked well. I used the aluminium oars on a smaller inflatable for a while, but they were not strongly made and they broke.
The Hypalon and transom are excellent and have given no problems.
The valves have given no problems but are not nearly as convenient to use as the valves on a 30 year old Avon
inflatable I have.
I use a Tohatsu 9.8HP 2 stroke
on the Achilles. It will plane with two people on board, but not with three. If buying
again, I would buy a 2 or 3 HP engine
and accept that it would not plane.
I have used the boat only occasionally so cannot comment on how it would stand up to heavy use. The floor flexes significantly when going over waves, which would stress the Hypalon, but I suspect the Hypalon would stand up well unless used in waves every day for a long period.