Not for the first time I've watched an auction just finish of an Avon 3.4S Supersport thinking I fancy one of those craft... it's a varnish and Hypalon thing!
Years ago I was talking about one and Matt H very kindly uploaded some scans of a brochure here...
http://www.rib.net/forum/f50/avon-su...bay-32256.html
That gives the weight of the 3.4S as 88lb which seems hard to believe. I have a Rover 3.1 at the moment which is a far lighter grade boat only rated to 10HP but that weighs 91lbs.
Then... if you're sticking with this... there is a thread with a slightly different scan of an Avon Supersport brochure...
http://www.rib.net/forum/f50/avon-s4...ect-32519.html where the page with the dimensions for the 4.0 has just caught the bottom of the section for the 3.4 where it shows the weight as a diagram of a bag weighing 88lb for the boat plus a representation of a bagged floor at 57lbs. So I suspect the real weight is 88+57 = 145lbs and the first brochure linked has forgotten to include the floorboards weight.
Any thoughts much appreciated.