American Owners Take Delivery Of First Horizon E81 The first hull of the E81 model from Horizon Yachts has been delivered to its owners who happen to hail from the United States. Of course, the E81 is part of the yard's E Series of yachts. The yacht has been in most part spearheaded the design of their first Horizon yacht to meet the needs of their multi-generational family. This first hull is finished with an open flybridge with solid glass windshield. The second hull though which is currently underway will be a fully-enclosed flybridge design -also going to an American client-.