i will not count the entrance as a wrap eitherDadatwins said:I would call that 3 wraps, I don't count the entrance rope going up the tree, or the exit tail coming off the tube. I would only count the actual rope that is on the tube as being part on the friction device and I see 3 wraps.
Of course, it could be on the metric system and then it would be completely different.
ah okTheTreeSpyder said:Double RoundTurn; 3 wraps. Then plus that final bend as a seperate consideration.
Noting if the pull direction on tail was up; i'd 'rate it' 3.5. But here, i take the change in direction as breaking off to another mechanic type; to be recognized and accounted for seperately. Similarly, i take a RoundTurn (2) as 4x or so better than a Turn(1). i think of a Turn as some friction, some slip; but a RoundTurn more as an empowered stop/ lots less-Zer0 slip. Hence, i think of a RoundTurn as worth 3 Turns. i think of 4 turns as a 'Coil', to make our friction hitches; then a single Turn mechanic maid separately as a some slip/some grip mechanic to precede the coil. So, the preceding Turn/Hitch of Distel etc. is separate mechanically from the 4 Turn coil/ does a separate job/ is not a continuation of the Coil.
You really have to watch this power mechanics i think, because at high loads especially, simple changes make pivotal changes in the mechanics. Like, a CrossedTurn pulled 1 way slips, with the Standing Pull under the Bitters. But the same exact lacing pulled the other way, so that the Standing Pull on top of the Bitters; is a Hitch formation and can seize.
Lots of stopping power none the less, mebbe too much for a lot of things; without allowing some run or elasticity to re-lease 'steam' from suddenly high loaded system. We have the pressure X surface area contact; but then for every real complete choke around (a good choke being really more than a Turn); we get this gripping choke folding back into itself for awesome grip power that a Turn just ain't got! Of course; i think that the real power in anything is capturing the equal and opposite forces to fold back on itself (so it runs towards the work along with your efforts and not running away from work!) back into the work!
didya try the mini portie yet accepts a halfinch lineTreeCo said:But the direction of pull on the tail is not up! It's horizontal.
It makes almost exactly 3.25 turns.
The Port-a-wrap is a great tool. I've got two of them. Aside from a great friction device.....I like the way it can be locked off so easily.
Dan
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