Today was the first chance I had to see the keel now that the foundry has added the last 650 kg of lead to the fin section. I calculated out the amount to go in each of the three chambers and the foundry batched each load separately. I was a little out with the estimates and the last few kg were added to the central chamber. The benefit of large pour is that each lead section is structurally sound while the downside was a slight bulging of the walls between the vertical pipe stiffeners due to the heat. With a little filling and fairing we will have a good finish.
The yellow lines on the side of the fin show the level of the lead. From the lines down to the base it is 1650 kg of solid lead.
The Didi 40 Cr fabricated steel lead filled keel. The two yellow lines on the side show the level of the lead so the centre of gravity of the keel is nice and low.