Here is pitcure of both my boats sailing on a boating lake not far from my home, the larger of the two was commandeered by my 8 year old son for a trainning mission he had in mind, which gave me an excuse to build another one, which is the smaller boat the picture, as the young captain needed escorting while getting use to his new command!
They are both made from balsa wood, which the material for the hull, it is sealed with a acrylic varnish,painted over the top with enammel paint with clear varnish on top of the paint! The superstructure on the larger destoyer is made from thin plywood, and on the smaller frigate its made of plasticard!
I got the lynx helicoptors on Ebay from "The Dorest Print Man" I think it was, which are 3D printed by him!