I think i messed something, and botched the playtrough. Figured out power puzzle on radio location(i think that gave me ability to recharge in the "shop" and enabled the radio ontop), interacted with radio, didnt found any signal and left.
Sailed in random direction(i think bird turned my "airship" in random direction.
Now im stranded, I cant turn sail, cant buld anything related to sails, some squared thing is not researched and i dont have it. I cant build smelter since i dont have first part of the research (i assume ore), and i cant mine ore deposits or whtever that is, it is inactive for me completely.

