Our firm produces propellers for small ships in various types:
E-Kaplan propellers used on tugs and hardworking trawlers .You can develop greater thrust than open or free propellers. They are manufactured to operate in nozzles. You can get maximum thrust with E-Kaplan.
The E-Spd Kaplan series give better performance on trawlers that need more speed. And you get smooth running. They are also manufactured to operate in a nozzle so that you can get greater thrust than open propellers.