This two-seat aerobatic biplane is stressed to a +6G and -3G limit, and +9G to -4.5G ultimate. It was first flown in 1973, and its designer, Edwin Merkel, planned to produce the biplane in a two-seater trainer version and a single-place competition model. The Mark II is completely covered with a light alloy skin outside, and underneath the fuselage is welded steel tube while the wings feature a single-spar torsional structure. Other extras include an antiservo tab, ground adjustable trim tab and optional cockpit canopy. Gross Wt. 1540 lb Empty Wt. 1200 lb Fuel capacity 18 USG Wingspan 25’6” Length 22’9” Engine 220-hp Franklin Top speed 206 mph Cruise mph 160 Stall 55 mph Climb rate 2500 fpm Takeoff run 300 ft Landing roll 300 ft Range 250 miles |