Thanks a lot my friends!!!! I hope I will like the job. Its something totally different. I will be an Administrator Spare Parts Catalogue in a company that fabricates wheeled and armoured military vehicles .... I really wanted this job ... all things with military vehicles and weapons are interesting for me.
Today I took the hull into my flat to weight it ....
10.5kg...I call it a lightweight hull ....
...and then I had the idea put the hull into water!!! But first I made a waterproof protection out of rubbishbags.
...Ufff ... just 4-5cm left in the bathtub. The hull is 137cm long and some 125-130cm at the waterline.
... to get the hull on the waterline I used all kinds of weights .... batteries 14.7kgs, full glass waterbottles 6.5kgs, glasses full of honey or chocolate cream 11kgs and lead 10.9kgs
I needed 43.281kgs weight to get the hull on the waterline .... 43.281kgs+10.5kgs=53.781kgs
I am thinking of using a ballast tank that I can fill with water as I want ... with compartment against sloshing. It could also simulate empty boat and full (fish) boat. If I add a tank of say 5l .... will it really reduce the ballast weight 5kg? Any ideas how I can build this?