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Hey Z,
thank you very much for your detailed answer. What you said makes perfectly sense.
It took me a while to reply to you...sorry for that. But there is nothing I can add to your post...

Hello everyone,
I visualized for myself the jacking force. Maybe some of you find it at least “nice to look at”. I hope it is correct. If its looks wrong to you, please let me know...

Assumtions:...

Hey Tim and Pat Clarke,
you two were right, I did not read carefully enough. I probably focused to hart on the writing and not on the pictures. 'Z's Free Body diagram (on page 4) helped me to...

Hi everyone,
first of all I want to thank everyone in this forum for their posts. Most of it is very interesting. But sadly, I didn’t found the answer to my question.

From my understanding...