Olman, you are on the right track.
You are familiar with species and prejudge tension well. Same here. The getting into this physics thing is simply opening our minds up with some conclusive data and to make Grover suck on it.
It was his challenge that I have no idea of the forces that took us down the track ... now we'll get some accurate idea and guess what ... the odds are stacking in our favour. The forces aren't as crazy as thought.
[ QUOTE ]
Ekka, your reaction to my response to the quiz is laughable.
You throw up a geometry/engineering question which has exact answers. You specifically said you wanted to know the weights at A and B.
You obviously did not understand the question you asked.
I gave you these answers and you came back with a rough estimate,which can only be described as distorted BS.
[/ QUOTE ]
Wrong again, I neither said you were right or wrong. I even said give some time for others to have a go. And a formula would be great.
[ QUOTE ]
You missed the correct answers by miles with your incomprehensible explanation.
How do you expect anyone to take your training videos seriously?
You set yourself up as some kind of authority on geometry and engineering.
You obviously have never studied either of these subjects and clearly you have no understanding of them.
I dont mind if you say that your using experience and instinct to come up with your felling theories,
But dont, for the sake of everyone here at treebuzz try to pass yourself off as a qualified bio mechanical engineer.
Its farcical! not mention downright dangerous!
YOU ARE NOT PROPERLY QUALIFIED OR TRAINED TO BE DISCUSSING THESE SUBJECTS INTELLIGENTLY
Admit it Ekka....your just 'estimating' everything.
[/ QUOTE ]
My qualifications are publicised on my website, what's yours?
Also, asking questions even with illustrated diagrams will seldom pass you off as an expert on anything but it does display a logical thought pattern at problem solving and a desire to solve problems.
I do know via estimation that the forces are well contained within the parameters of my equipment. I also do know that the answers I got were different to yours ... hence applying your larger (worse for the display) answers to my set up in this video.
My answers were 1.1T and 1.66T on that beam. But the helpful guys above gave a hint to where theres a calculator.
http://www.forestryforum.com/members/donp/linepullclc.htm
And when I put them in I was too high also, so the forces are way lower than my calculation. I would like to see the formulae for the calculator though ... afterall can we truly say that it is infalible?
[ QUOTE ]
Using the homeowner to pull the tree over is just a joke!
Yeah...... real safety concious there Ekka!
I cant take you seriously anymore.
[/ QUOTE ]
What is your problem? First you accuse me of people in the drop zone, then you jump for other straws. The guy is outside the 1.5, is no idiot and we have worked for him 3 times before felling trees, he is a plumber and a hands on person, he'd rather drive the Kanga than miss the video shot ... it's easy, pull two sticks straight back.
The video stands, it's accurate, your attempt at crapping on it failed and you have done none other than allow some to see deeper into not only the physics of side leaners but your poor comprehension on reality.
Using the calculator I entered a horror oak.
It's a 100,000lb with 10 degree lean, it's a 100' tall but we have our rope set at only 50' and the rope angle to the tree is 35 degrees coz the rope is at 45 degrees to the ground but the tree is on a 10 degree lean ... so this is a really bad example. The centre of gravity is high too at 50'. The result is attached
