His first motomizu A. Migranov built in 1981. As a prototype use if they had allowed themselves the development of his friend Peter Koynova. Although much was done differently: the engine mount, rudder, installation of bearings, three-stage gear transmission and cetera.
Testing Pravda, identified gaps: the motor was overloaded due to the low gear ratio and big diameter end mills; three times to break off the angled fan blades ahmadinia cylinder head. After reduced the speed of the block cutters to 82-85 per minute and fixed other problems, the machine began to work perfectly.