On the foward deck at each side i have a rail almost an inch wide, and 6 feet long, curved that follow the shape of the deck what are those for¿
Also on the mizzen mast at both sides i have something like a standar rigging with a desmultiplication what are those for¿
Not sure about the rails; can you post a photo?
Could the rigging on the mizzen be running backstays for use with staysails? Most people only have one, taken to whichever quarter is appropriate when needed. The tackle (three part on ours) is to tension it, probably unnecessarily in my opinion.
By the way, where are you based; Spain, perhaps? We spend a lot of time near Valencia.
regards,
Gerald