TheTreeSpyder
Branched out member
- Location
- Florida>>> USA
Rope length is a relative thang. Rope length is related to rope tension, elasticity, length to load etc. For example a system of a line tied off to a tree; then hand tightend and tied off to a stump as anchor with line hand tight has so much rope in it. If pulled tighter with a with a Z-rig, we don't necessarily move tree, but there is less rope in system for same job; because we have taken a purchase of some rope length to the slack side/ out of the tension or higher tension side (between stump anchor and tree).
Rope is a flexible device, so as common sense we multiply force with inline pulley pulls. Wood, a non-flexible device resists bending; so this resistance X length X angle gives leverage with non-inline force/ perpendicular direction of input; in contrast to inline input of rope/pulley/flexables. But, under tension load; suddenly rope kinda becomes a stiff/ non-flexable device; so the resistance to bending can now be used to highly leverage force(with angle and tension as multipliers, not length) like a wooden lever; with non-inline/perpendicular pull to rope. The friction that you usuallty fight in pulley systems, now becomes an ally to trap the higher line tension (by grabbing hold/ taking purchase of more rope to the lower tension side by a successive process of sweating more and more purchse from a line; less rope under same load gives even more tension on high tension side of friction).
Sir Brion Toss tells grueling stories of men at sea with nothing but the wind power they could capture to get home; losing or breaking the al'mighty capstan crank that tensioned sail lines etc. They would pull the line tight with the capstan redirect to deck what they could with several men, then 1 bends the line sharply on the higher tension/ sail side; and the other man/men snatch the rope purchase form this sweat' thru the capstan to adjsut sail, and keep the purchase, and go for more. All this at night, in the wind, starving, sick and wet; without radio or any convenience they saved their lives, if they could live another 20 daze or so until port.
Pulleys give additive, arithmetic increases in a system; then multiplying between systems; with inline pull direction. But, with leveraged input/ non-line direction input on these, or any legs of line to load/target; we can immeidiatley get high multiplying/ geometric increase in power in a short, but very powerful range. The loss of power by this strategy is much quicker than the loss of power by 'sloppy angles' in inline/pulley type of strategy. This one trick of quick high power potential in a with perpendiucalr input on a tensioned line has saved my bacon, made my job easier, some tricks possible that otherwise wouldn't work. Just like those swash buckling men at sea in Toss's stories; by keeping these principals in mind and practice!
Even in tie downs i will zrig to pretighten and stiffen the line; then really levgerage it tighter with a bend. So the zrig is just the preset; then multiply it's multiplier!
Rope is a flexible device, so as common sense we multiply force with inline pulley pulls. Wood, a non-flexible device resists bending; so this resistance X length X angle gives leverage with non-inline force/ perpendicular direction of input; in contrast to inline input of rope/pulley/flexables. But, under tension load; suddenly rope kinda becomes a stiff/ non-flexable device; so the resistance to bending can now be used to highly leverage force(with angle and tension as multipliers, not length) like a wooden lever; with non-inline/perpendicular pull to rope. The friction that you usuallty fight in pulley systems, now becomes an ally to trap the higher line tension (by grabbing hold/ taking purchase of more rope to the lower tension side by a successive process of sweating more and more purchse from a line; less rope under same load gives even more tension on high tension side of friction).
Sir Brion Toss tells grueling stories of men at sea with nothing but the wind power they could capture to get home; losing or breaking the al'mighty capstan crank that tensioned sail lines etc. They would pull the line tight with the capstan redirect to deck what they could with several men, then 1 bends the line sharply on the higher tension/ sail side; and the other man/men snatch the rope purchase form this sweat' thru the capstan to adjsut sail, and keep the purchase, and go for more. All this at night, in the wind, starving, sick and wet; without radio or any convenience they saved their lives, if they could live another 20 daze or so until port.
Pulleys give additive, arithmetic increases in a system; then multiplying between systems; with inline pull direction. But, with leveraged input/ non-line direction input on these, or any legs of line to load/target; we can immeidiatley get high multiplying/ geometric increase in power in a short, but very powerful range. The loss of power by this strategy is much quicker than the loss of power by 'sloppy angles' in inline/pulley type of strategy. This one trick of quick high power potential in a with perpendiucalr input on a tensioned line has saved my bacon, made my job easier, some tricks possible that otherwise wouldn't work. Just like those swash buckling men at sea in Toss's stories; by keeping these principals in mind and practice!
Even in tie downs i will zrig to pretighten and stiffen the line; then really levgerage it tighter with a bend. So the zrig is just the preset; then multiply it's multiplier!
