Originally Posted by Chris
I know this is reviving a rather old post but I asked this question of Mike from Osprey the other day and was told that the 6.2 and 6.5 are the same width and the only difference between the two was an extra 30cm at the rear. In fact that 5.8 is again the same width just shorter.
I mentioned that the specs on the website look to disagree with this and Mike said they must be wrong.
Yes, the webshite is wrong. The specs state the 5.8 & 6.2 have a 2.36m beam, but my 5.8 came in at 2.48m! I don't know about the 6.2, but when I measured a couple of 6.5s, they were 2.55m max beam, so only marginally wider than my 5.8 turned out to be, suggesting that the hull pattern is most likely identical.
The 6.5m+ range differs from the smaller boats in having a taller chine between the running surface and the tube flange. Take a look at where Hugh Jardon stuck the two tone 'Vipermax' logo on his 6.5 and you'll see what I mean when compared with my 5.8 in the pics below. Due to this chine, the 6.5 sits with its toobs marginally out of the water when at rest, whereas the 5.8 (and presumably the 6.2) does not.