Originally Posted by Liam
According to the Power and Motoryacht article the 630 hull is a further development of the 60. That being said it means that all the forward part is the same, or very similar with modifications carried to the stern.
Here having more medium Vee deadrise aft from 17 (60) to 14.5 (630) and tunnel pockets for the propellers.
Would be good to see a picture of both fore part of the hulls side by side and compare them, to see if the claim is true.
Liam, is your entire knowledge of these yachts based on information that you've gleaned from magazines, websites and press releases? Trust me, my knowledge of these things goes much farther than that, I've designed them, built plugs, molds, prototypes and production boats. I've employed the same people that designed and built the original 54 and 60 Bertram as well as people from the prototype shop at Bertram when the 630 was being put together. I'll state it once again the only similarity between the 630/640 and the previous 60 is that they're both pointy on one end and rather square on the other end, otherwise they're completely different bottoms, different entry, different butt lines, different bow, different keel, etc.