The Fantasy Air Allegro is a Czech two seat, high wing, tricycle gear, single engine monoplane light-sport aircraft or microlight originally designed and built by Fantasy Air and later produced in the United States by Allegro LSA.
The Allegro has a strut-braced wing constructed from aluminum, with fibreglass wingtips. The 2000 and 2007 variants have a 10:1 aspect ratio wing that tapers outboard of the flaps, while the shorter-winged SW model has non-tapered wings. The wings are equipped with three position electrically-actuated flaps with positions for 0, 15 and 48 degrees for cruising flight, take-off and landing respectively on the 2000 model and -4.5, 15 and 48 degrees on the 2007 model. The ailerons are of a differential design. The airfoil is an SM 701.
The fuselage is constructed from Kevlar-reinforced fibreglass with steel tube reinforcement in the cockpit area. The seating is for pilot and passenger in side-by-side configuration, sharing a centre-mounted control stick. The landing gear is of tricycle configuration, with curved main gear legs made from fibreglass and a nosewheel mounted on steel tubes with rubber puck shock absorbing. There is also a shock-absorbing tail skid mounted under the fin. While the fin is fibreglass the horizontal stabilizer, elevator and adjustable trim tab mounted as a T-tail are all aluminum.
Fantasy Air (Fantasy Air, s.r.o.) was a Czech aircraft manufacturer. The company started building ultralight aircraft in the 1990s. Fantasy Air manufactured the Allegro 2007 aircraft under microlight/ultralight regulations in several countries and under the Light-sport aircraft (LSA) rules in the US.
The company made a deal to purchase Pisek Airport in 2007 and this took needed cash out of the manufacturing operation. The company was declared bankrupt on 9 November 2007, but managed to sell the airport and make a recovery.
In July 2009 the manufacturing of the Allegro was moved to Roseburg, Oregon, USA, as part of X-Air Australia. The move was attributed to the high value of the Euro reducing sales to the USA and Australia.