Hi Phill,

perhaps you refer to one of my postings of the beginning of 2001, when the Javelin A was launched.

I am not sure to be able to find a copy, anyway I can summarize for you the content:

the Javelin A class hulls were actually designed to optimise the performance of the Flyer expecially downwind.

BIMARE observed that the sterns of Nils Bunkemburg's design have a tendency to sink (lack of volume). Therefore Javelin's hull is somewhat fatter and flatter at the bottom than the Flyer's (from the daggerboard case aft). Anyway at any point of the submerged area of the hull the difference between the 2 designs is very small (never more than 1 cm).

The downwind problem was recognized by the same Nils Bunkemburg, who entered the 2001 A class Worlds with a modified version of the Flyer (much fatter and flatter at the sterns). Perhaps he went too much far.

From the daggerboard forward - at any point of the hull -the difference between the Flyer and the Javelin is always less than 0.5 cm.

Then the main difference between the 2 design is the bow:

the "strangely" shaped Javelin's bow is intended to increase the waterline lenght of the boat by 15 cm.

Ciao

Maurizio