All wired up and ready to sail, the ark just needs a bit of weight to level it up. The heavy battery in one end brings the hull down a bit, but uneavenly. What the model needs is a spell in the sink and some extra lead.
Those moulded lines on the hull are very handy as a quide. Add to that a spriti level to make sure things are equal all round and the job only takes a few minutes.
At 1.2kg, this boat isn't going to have a problem in the wind, or when the fast boats make waves!