... drive. CCS ,BV ,ABS, N Fixed Pitch Tunnel ThrusterStern Thruster:1.Diameter 500-2100mm.3.Eletric or engine drive.4 ... .CCS ,BV ,ABS,NK, etc.Tunnel thruster hydraulic system selection,power selection , blades size selection , the ... , electric motor, diesel engine or hydraulic motor.FP Tunnel Thruster Tech. DataTypeTT500-FPTT600-FPTT700-FPTT800-FPTT900-FPTT1000-FPTT1100-FPTT1300-FPTT1480 ...