Butterfly

In 1979, Raymond Mossoux, engineer at SABENA, designed an ultralight glider using the tandem wings formula of Henri Mignet. This small glider, very light (28 kg) could be carried by hand if you wanted to take off by running, landing being made on a skid.  

After several flights in glider configuration, towed by a car, a Mc Cullogh single cylinder 2 stroke, 95 cm3 (9 hp at 7,000 rev / min) engine was fitted on a pylon placed behind the pilot and between the wings. The design is then slightly modified when a 2 cylinders JCV engine of 20hp specially developed for the Butterfly is installed.
Above: a Dagling in 1939
Here under: the Dagling we received was more a jigsaw than a glider and much work was needed to rebuilt it. 

Here under: if the fuselage was easy to rebuilt, the tail needed lots of repairs and the wings had to be completely rebuilt using the original spars and a few structural components.
Butterfly characteristics :                       
Performances :
Length : 3,45m Cruising speed : 70 km/h
Wingspan :  front:  6,19m
                   rear:  4,36 m

Wing area : front: 6,94 m²
                  rear:  4,74 m²        

Empty weight : 48 kg  
Below: At left the glider is assembled for the first time in May 2021, the wings are mostly newly build and the tail is already fabric covered. At right the machine fully restored and fabric covered displayed during an event at Temploux airfield ("le printemps de l'aviation") in march 2023.