Another crazy idea is that i would like to recreate one of the 2 atomic test shots in Bikini island by the US .Namely the Baker shot  which was done underwater The GHQ metal war-gaming ships due to their tiny size (1/2400) but also the very good quality they have are the only choice.After i done some rough calculations and after i found some info on the net about the size of the mushroom cloud and the composition and positioning of the target fleet ,  i estimate the width of the column to be around 25-30 cm and the overall height around 76cm and thats in 1/2400 scale!!. The width of the top cloud should be around 85cm  at the particular moment in this picture.Well as i said it is a crazy idea.