[Shop-talk] math wizards ??? come here
ScottyGrover at aol.com
ScottyGrover at aol.com
Thu Apr 9 17:32:24 MDT 2009
In a message dated 4/9/09 12:49:19 P.M. Pacific Daylight Time,
cak at dimebank.com writes:
> You need a few more pieces of information in order to do the trig.
Not really ... as Randall pointed out, 'similar triangles' gets
it done with what he's got, since all the ratios remain the same.
Only if the boom has a slide on it, allowing the boom to lengthen as it
rises; Given that he has the length from the hinge to the hook and the
length from the hinge to the jacking point, a trig. table or a scientific
calculator should give the angle of which the tangent is 1"/12"; then that
angle's tangent, multiplied by 96" should give the height of the hook above
level.
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