The Steen Skybolt is a fully aerobatic, two seat tandem biplane designed by Lamar Steen in the late '60s and first flew in 1970. The Skybolt cruises at about 130 knots and has an engine size of between 160hp and 300hp. Max take-off weight is in the vicinity of 1200lbs. Information and parts are available from www.steenaero.com