 BJ6903 is low cost drone developed by NWPU with BJ is an abbreviation of Ba-Ji (靶机), meaning drone in Chinese.BJ69003 seems to be a cheaper derivative of earlier Type B-1 (Type 01) drone, and share the same conventional layout with high wing configuration and a pair of skids as landing gear, but the skin is cotton paper instead.Propulsion is provided by a two-blade wooden propeller driven 40 cc, twin cylinder and two stroke tractor engine mounted in the nose at 2 – 3 horsepower.