Attach ballast weights to the floor of your model ​ — such as a few evenly spaced coins held in place with tape or glue — ​ until it floats with between a third and a half of its height under water.
Aseta oma maketi sisse ballastiks ühtlaselt jaotatud münte, mida võiksid kinnitada paigale kas teibi või liimiga, kuni laeva kere on vajunud vee alla kolmandiku kuni poole võrra.