Sea Loon
If that lake or large pond near by has been enticing you for years to use it as the runway for your models, this small flying boat (for a .15-size engine and five-channel radio) may just be the impetus to get you float flying. During the late 1940s NACA did considerable research, both aerodynamic and hydrodynamic, investigating refinements to the "planing tail" type of hull. During these years there was still some interest in fast, long-range flying boats, and the NACA studies led to the development of a twin-engined design that possessed considerable stability.
