The surplus barite, bentonite and cement have to trans-fered to the supply boat.

If the centerboard is weighted, then it also provides weight low in the water, like a keel, to help keep the boat upright (although not as much weight as a fixed keel can supply).

The site says Apoise had an estimated worth of the boat is $87 million, suggesting that demand for yachts is still far from meeting the supply.