7GS8.8-44propeller is to bo coupled with adiesel engine or gasoline engine,which is fixed on the stern of 10-35 tons' concrete hull boat or wooden boat.The propeller has a direct and dynamic link,saves a V-belt,abd avoids a water slipping of the V-belt.This design saves 5-10% power loss.The propeller innovatively fixes large bevel gear in the upper gearbox and lower gear box,which reduces the noise of gear box and develops transfer efficiency with a 5-10%.Coupled drive:8.8-33kw diesel or 10.8-44kw gasoline engine;propeller propusion2000-4000N.Single,empty boat speed 22km-30km\h.
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