I intended to build , for example one of the TRAFALGAT , ASTUTE , KILO , VICTOR , AKULA , OSCAR , Los Angeles class sub ,or any other sub scale betwen 1/72 thru 1/96 ,
1) how do I choose the motor? ;
2) direct drive PRO/CONT ;
3) if geared motor WAY and at what ratio ;
4) what is/more/impotant : Rotation Nr.....Torque.....voltage.....current ;
5) or any other ? ;
or is necesary and IMPORTANT WHAT TYPE of Sub is going to be build and dossen't matter the motor?!
PLEASE tell more in details of Why you choose for a particular version ..... what reason are observable ...... even if they are related to the efficiency versus financial