The Greenline 48 FLY Ever heard of Greenline Yachts? They are a small yacht manufacturer that is based in Slovenia. They concentrate on yachts under 100-feet at the moment and are quickly expanding their offering. One of the models they make is the Greenline 48 FLY, yes a flybridge cruiser that packs some punch below decks. The Greenline 48 FLY is the current flagship of their Flybridge line that also includes 33, 39, 40 and 44-foot models.