By education , I am Eng. mechanic. But I dealt with making the sound at concerts my apparatus .. It so happened that a few times , even ten times , I made a concert in Gdansk Shipyard Hall (which is then burned )
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We have always had a pass to the shipyard , because the entrance to the hall was the scene from the side yard. I as the driver of the car, after a few hours of driving , I've always had a break , and my employees were unloading acoustic equipment and lined it . I have two hours of free time , and this pass, always walked across the yard and spied on how the technology of shipbuilding . Often talked with employees who explained to me the various ins and outs of building ships . Then I met shipbuilding quite accurately , because she was always very interested mechanics ... Then I came to realize concert .. With these trips , I know how much free space is on a big ship . Here I present figure of the ferry , which sink .. Knowing its importance , which is 6800 tons , and subtracting approximately 1,500 tons , steel, wood , fuel , and such a variety can displace water , leaves us to displace the water about 5300 tons. , And then ship will not drown .. an average of 5300 tonnes divided by the length of the vessel is 146 meters = one meter will fall an average of 36 tons. so much water should displace to get afloat .. Now the height of each side of the free spaces submerged to 2 x 10 meters. .. For the average 15 meters wide double bottom .. together gives us 35 running meters , part of the flotation technique around the ship ( floating section ) .. So enough that the average thickness of 1 m polystyrene foam , applied to each inner metal shell of the ship , provided the to always buoyancy of the ship .... only 1 meter thick ..
When it comes to airplanes, it also thoroughly know their structures .. In carrying about 1,000 concerts in the former Soviet Union, every change of concerts, took place only airplanes * Once was a car, but I said 'never again' J. I had to upilnowania 40 boxes with equipment weighing about 3 tons .. Always, as soon as possible, guarding the proper loading and unloading, personally entered the baggage compartments, aircraft, whom the trip was .. And these were the aircraft from AN2 to Il 82 all types which were in the Soviet Union .. So exactly what I learned there are opportunities. And I know that a lot of them too .. Especially as it applies molded styrofoam possible to remove, to do the service ..
Happy Easter for all