Sail and Solar Powered Cargo Vessel Project

Professional Mariner Forum
24

The Tres Hombres still seems to be sailing around:

http://www.marinetraffic.com/ais/details/ships/shipid:3386145/mmsi:667905000/imo:0/vessel:TRES_HOMBRES

How do they get over the manpower hump? Does the whole thing hinge on having unpaid trainees?