DESIGNING PROPELLER OF MINISUBMARINE 22 M BY USING STANDARD SERIES DATA

Mini submarine  with 22 meters in length , hull diameter of 3 meters and 130 ton in displacement is very common operated  for shallow water. The choice of propeller as a propulsion of minisubmarine is the important role in the designing of minisubmarine 22 m. The powering calculation specially resistance calculation of  minisubmarine is carried out by using  the Viginia Technology (VT)  method and submarine sister for getting similar data. Based on the result of powering calculation, designing propeller was to be done by using the B-series Propeller The choice of the blade area ratio, pitch diamater ratio number of blade , rpm and diamater of propeller depend on the required thrust and the the available power. It’s found that the propller B7-85 with PDRA 0.9 and the number of blade 7 is suitable for the propulsion of minisubmarine 22 m.