"#4 bolts" Huh? #4 as in 4-40 machine screws??In a situation like this ( see drawing)
Can those #4 bolts hold the 8ft section?
( is it better to make a bridle with motor 1 (M1)?
I'm not disputing the angle, but read exactly what I wrote: "As you point out, Nick, if the 2.9 tons per leg is correct..." 2.9+2.9=5.8 tons. Or has addition changed in the decades since I was in first grade?I'm going to disagree. The eye hook (assuming it is a Crosby product since it is a Crosby exam) is rated for a 5T capacity as long as the included angle of the bridle does not exceed 90 degrees. The angle of the bridle at the hook is 60 degrees (equilateral triangle = each angle is 60 degrees).
The eye bolts do need to take into account the additional load due to sling angle, but the eye hook is already rated for the sling angle given in the example.
See the Crosbly application note for hooks attached.
-Todd
No, addition is still the same- you are just adding the wrong things.
Calling @What Rigger? and @egilson1In rigging trianlge the sum of tension in legs does NOT equal to the loading seen at top .
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