Encouraged by friends and previous customers, Marcel Jurca developed the MJ-51 in 1969 as an improved, higher power Sirocco.
It has a longer, more rounded, stronger fuselage capable of engines up to 360 hp (268 kW) and the wings of the MJ-7 Gnatsum without dihedral.
[1][3] In 2021, the aircraft, registered N3LM, won the Homebuilt Plansbuilt Grand Champion Gold Lindy at EAA AirVenture Oshkosh.
[4][5] The third aircraft was started in France in 1999 with a plan to install a Potez 260 hp (194 kW) engine.
Transferred to a different builder, the design has been changed and strengthened to accommodate a 300 hp (224 kW) Lycoming AEIO-540 Other modifications will include a two-door canopy, a larger and more accessible rear seat, additional fuel tanks, advanced avionics and uprated brakes.