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[Nick-R]

I am currently building a Billing Smit Rotterdam.  Hull is complete and currently in the paint shop!  For anyone who has previously built this model, I am looking at buying some lead ballast and would like an idea of weight required.  How much ballast did your model need?

[rhavrane]

Bonjour Nick,

For my boats, I go to a large sports store. There, I find 500g diving belt weights for the largest. I attach strings to these weights so they can be easily moved, ²for example: https://youtu.be/AX9gSulLzS8

For fine adjustment, I use fishing lead pellets and place them in small plastic bags.

When I'm satisfied with my settings, and if necessary, I glue the weights and bags together with wood glue, which is sufficient to hold them in place and easy to remove if necessary (being able to remove them from the boat makes handling easier because the boat is lighter).

Otherwise, I also found pieces of lead and cast my weights: https://youtu.be/mYJolp8xpNQ and https://youtu.be/B_662AxL5ic

I hop this will help you.

[1967Brutus]

I am currently building a Billing Smit Rotterdam.  Hull is complete and currently in the paint shop!  For anyone who has previously built this model, I am looking at buying some lead ballast and would like an idea of weight required.  How much ballast did your model need?

Either the box, OR the building instructions should somewhere mention a finished weight for the model. That is, the weight it should have to achieve the proper water displacement.

Easy enough to keep track of the weight of the model when it is finished (RC, motors, batteries included), and the difference is what you need to add.