This standard specifies the models, main performance, technical requirements and test acceptance rules for agricultural outboard engines and propellers. This standard applies to propeller engines that meet the following conditions: a. The supporting diesel engine power does not exceed 22kW. b. Equipped with steel, wire mesh cement and wooden agricultural and fishing boats, the load capacity does not exceed 80t. c. Transport ships sailing in Class B and C navigation areas of inland rivers and fishing boats in coastal and sheltered sea areas. Direct-coupled propeller engines and supporting diesel engines whose single engine power exceeds the above range can refer to the implementation.
JB/T 6668-1993 history
1993JB/T 6668-1993 Technical conditions for agricultural outboard engines and propellers