U-2005 Hydraulic Maritime Transmission can be couple for all engines from 600 Hp (441,6 KW) to 1000 Hp (736 KW) In U-2006 transmission, you may use its forward command as "continuous reverse motion" and its reverse command as "continuous forward". These do not cause any breakdowns in transmission mechanism. While you are choosing transmission mechanism, you have to know engine's power, reduction rate and the boats loaded weight. And also you have to pay attention to these details.

If U-2006 is going to use for heavy duty boats it must couple 600 HP (441,6 KW);
for medium duty boats it must couple 800 HP (588,8 KW);
for light duty boats it must couple 1000 HP (736 KW) engine's.