The engine has come in the stead РС1. On it as the shaft is applied on 13 mm under the domestic bearing 13х21х5 mm, but with the short part diameter 13. The counterbalance of a flywheel is executed with the help electrospark processings. Actually it is the facilitated variant of motor PC1. Same fast. Except for a shaft all details were interchangeable. Very resource motor. Some motors fly and until now.