Hi Roger,
I have put a couple of bits of flat lead sheet in it but not very much. With a flat bottom hull it really isn't very stable, with little of the hull in the water and no real 'self centering' influence. Having a high centre of gravity (almost all the weight is in a boiler full of water) doesn't help either. My boat does not like a windy day since the keel-less hull has no bite in the water and its easily blown windward. I have considered adding a lightly weighted keel like a yacht (removable?) which would solve all these problems but have as yet ignored it and gone on and built three other boats since that one.
regards,
Laurie

Hi Laurie, since my last post I have filled a short length of 15mm copper pipe with lead and tied it under the keel. What a difference, now sits in water better and very stable Cant believe the difference moving the weight under the keel makes. Thonk I will bolt it through the keel so I can remove it for display, thanks for your help good sailing
Roger

HI Roger,
hadn't thought of a tube, and it's a lot simpler than my yacht keel idea!
Laurie