My name is Chuck Slusarczyk and I started Chuck's Glider Supplies (later known as CGS Aviation) in 1971. I designed and built hang gliders from 1971 until 1981 when I sold the hang glider portion of the company. During 1973 I started experimenting with the idea of motorizing my hang gliders. As a result of this work, I received a utility patent from the U.S. Patent Office entitled "Powered Hang Glider with Reduction Drive" (Reg. U.S. Pat. Off. #4,262,263). I designed and built reduction drive units and engine conversion packages for various hang gliders and early ultralights like the Easy Riser, Fledgling, Mitchell Wing, Quicksilver, Viper, F.L.A.C., and others. In 1974 I piloted a towed hang glider 52 miles across Lake Erie from Cleveland, Ohio to Rondeu Bay, Canada which was the first international flight in a tow kite. In 1979, as part of a promotion for the Cleveland National Air Show, I piloted my Easy Riser ultralight 62 miles across Lake Erie. This was the longest over water flight in an ultralight at the time. I also carried 100 first day covers stamped by the Post Office to be the first ultralight to carry the mail. My Easy Riser now hangs in the EAA Museum at Oshkosh.

I started designing the CGS Hawk in 1981. The prototype was flown in February of 1982 and has been in continual production ever since. The EAA museum in Lakeland has accepted the prototype CGS Hawk for their permanent display. Prior to all of this, I worked at NASA Lewis as a research technician and for Scheutzow Helicopter Corp. as part of their type certification team.