Analisa teoritis penggunaan kort nozzle pada propeller konvesional untuk peningkatan efisiensi propulsi harbour tug 2X867 HP = Theoritical analysis of kort nozzle application on conventional propeller to increase the propulsion efficiency of harbour tug 2X867 HP

Analisa efisiensi penggunaan kapal tug boat pada Kapal Tongkang 250 feet = Analysis on the efficiency of tug boat usage on 250 ft barges

Efek perubahan aliran gas buang dalam knalpot untuk diterapkan pada Mesin Kapal Klotok 10 HP = The Effect of exhaust gas flow modification in the muffler to applied on " Klotok Boat " Engine 10 HP

Studi sistem kontrol thermostatic valve pada pelumasan mesin tugboat 2 x 1600 hp = Study system control thermostatic valve in engine tugboat 2 x 1600 hp lubrication system

Analisa manajemen operasional pada pembangunan kapal tunda (TUGBOAT) 2x1600 hp di galangan kapal = Analysis of operational management on building of (TUGBOAT) 2x1600 hp at shipyard