Standard single-seat version of the Salvay-Stark Skyhopper
Another U.S. "home-built" is the single-seat Salvay Stark Skyhopper 10 (N41770) which is powered by a 65-h.p. Continental flat-four.
Two-seat Salvay-Stark Skyhopper built by Mr D. King of Seattle, Washington (108 hp Lycoming O-235 engine)
Two-seat version of the Salvay-Stark Skyhopper (85 hp Continental C85 engine)
Sport-Aire II, plans of which are available from Mr. A. Trefethen
Sport-Aire II (115 hp Lycoming O-235-C1 engine), with modified tail, built by W. Horstmeyer
Extensively modified Salvay-Stark Skyhopper owned by Mr Douglas Umbreit of Memphis, Tennessee