This is my ready built Taipan style front beam, resting on my 5.5 hulls. Cone radius is 3mm, fits perfectly to the Goodall mast base.
Below is also the final striker post design. NOTE, it is not at all to scale ;-)!
I´ve also bought an Inter 20 main for another mast I already have, and I am also waiting for a pair of Nacra 6.0 hulls to be delivered from the Netherlands.
Will combine this with a flattened self tacking 49er 5.7 sqm jib and the newly built 10.5 ft beams.
The 5.5 keeps the F18 rig and its original beams.