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buletinul institutului politehnic din iaşi - Universitatea Tehnică ...

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174 Mariana Lupchian<br />

Fig. 1 – The propeller efficiency of naval propulsion (ship loaded).<br />

Fig. 2 – The propeller efficiency of naval propulsion<br />

(navigation in ballast)<br />

4. Conclusions<br />

1. The result is maximum efficiency of the propeller η0 = 0.586627, ship<br />

speed v = 11.810 Nd for navigation in ballast. The propeller efficiency η0 =<br />

=0.5329, ship speed v = 13.700 Nd to load navigation.

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