I have this problem when I talk to people about boats of different sizes. Most people think only of the length of the boat -- overall length. The thing is, boats are 3 dimensional objects. They have different shapes. Those light sportboats down under are small for their length. Just like the Viper is small for it's length. You can not compare the difficulty of building a viper to it's weight with the difficulty of building a melges 20 or a U20 to the same weight, or even a cal 20. The viper is a smaller boat, even though it is approximately the same length. A single scull (http://www.empacher....ote/1x_R_e.html) even longer, and they weigh 85 - 100 kg. It's a little like explaining the difference between peeling an apple and peeling an orange. It is very difficult to peel an apple with your bare hands.
They actually weigh 14 kg (minimum weight) - the 85-100kg is the rower weight.........
Ah. Thanks for the correction. I was thinking it sounded heavier than I remembered (from 20 years ago!). But it makes the point even more salient. The length of an object is not a good predictor of weight (or even cost/value), and that holds for boats, unless you assume everything else is the same.














