Extracts from flight review on bydanjohnson.com. Click link for full review. Created by Brazil’s AirMax Construcoes Aeronaticas, the SeaMax is designer Miguel Rosario’s 22nd design and his experience shows. The M-22 is very well thought out with many details not present in other LSA. The SeaMax M-22 appears physically small from the outside.With the wing chesthigh for most people, the SeaMax looks tinier than it is and the light weight surely contributes much to the relative high performance of this flying boat. Light and small it may seem, but when you step inside, you’ll find the interior to be surprisingly roomy. Entire airframe made of composite materials including fiberglass, carbon fiber, and Kevlar; steel or stainless steel landing gear and other components; made in Brazil with numerous parts American sourced; distributed in American by Florida-based company.