The Hawk Arrow II is a single-engine, 2-seat ultralight airplane developed and manufactured by CGS Aviation of the United States. The Arrow II is an evolutionary iteration of the CGS Hawk, which took its maiden flight in February of 1982. Pilots know the Hawk Arrow II as an exceptional aircraft for a broad spectrum of operations, from flight instruction to cross-country touring.
The Hawk Arrow II traces its origins to the work of NASA researcher and hang gliding pioneer Chuck Slusarczyk. In 1971, Slusarczyk started Chuck’s Glider Supplies to develop and market hang gliders and associated components for the sport. His design process led him to experiment with power systems for hang gliders in 1973, which culminated in the United States Patent “Powered Hang Glider with Reduction Drive.”
During his development process, Slusarczyk made several test flights with powered hang gliders and early ultralights. In 1981, he began designing the initial Hawk prototype with his company, renamed CGS Aviation. The model comprised an enclosed cockpit, a strut-braced main wing, wing flaps, a pusher configuration propulsion system, and full 3-axis controls. Slusarczyk unveiled the Hawk in March of 1982 at the Sun ’n Fun International Fly-In and Expo in Florida where it won an award for best new design. The original Hawk proved to be a commercial success, and several evolutionary iterations followed, including the renowned Hawk Arrow II.
The Hawk Arrow II is one of the most advanced designs in the world of ultralights. It is constructed of lightweight aluminum alloy and high-durability fabric. It features an enclosed cockpit with tandem seating, refined 3-axis controls, and a sloping canopy that maximizes pilot visibility. Its strut-braced main wing has a semi-symmetrical airfoil and has fully functioning flaps in addition to its ailerons. The tail boom is curved to keep downwash from the main wing from aerodynamically interfering with the horizontal stabilizer, even with flaps deployed. It is available with fixed tricycle landing gear or a fixed standard undercarriage.
The Hawk Arrow II is powered by a Rotax 912 4-cylinder piston engine that generates up to 100 horsepower and turns a 3-blade DUC SWRL-3 ground-adjustable, variable-pitch propeller. The Hawk Arrow II cruises at up to 80 miles per hour, stalls at 35 mph, and has a climb rate of up to 1,200 feet per minute.