This standard specifies the technical requirements, test methods and inspection rules for reciprocating piston model engines. This standard applies to reciprocating piston model engines (hereinafter referred to as engines).
HB 6719-1993 history
1993HB 6719-1993 General Specifications for Model Engines
HB 6719-1993 General Specifications for Model Engines has been changed from HBm 26-1984 .