Re: Bowline Appreciation Society
i am a real DBY fan; in our lines; when set well; for many things. The life support connection is no longer one of them.
Bowline Position Leveraging Krab Warning. i maid myslef learn on a DBY; with tail out top serving cleanly over to Tautline.
i'll use one rigging to krabs all day; but for more single use setups; that are tensioned with krab in right orientation; and not just dropeed into a line. So, in this signle use (lowering); there is about no chance of dis-orientation of the bowline in a krab. Too many sequential loading/unloading of unprotected knot in climbing; asking for some change from the singular, maximum, inline strength position (of krab not being leveraged/ cross loaded). i have Tom to blame for this under-standing.
A Double Bowline gives more stength and security to our lines; if set well. The double ring gives more grip for more security and a softer arc to Standing Part for more strength. But, if not set well; that 2nd tier ring can shift; in that case the 2nd tier becomes more leverged distance of pull to upset knot, than if same force where set from on top of a single ring(L-earned that from the Knude one). Also, are lines are flexible enough not to really fight the 2 ring style; like thicker lines that would try not to stay in bowline shape unloaded.
The Yosemite tie off can similarily be fought by stiffer lines. But, it does add security, and cleans up the eye(in softer lines that lend themselves to this stategy); especially for re-using all day as a temporary eye (like a permananent spliced eye) for loading loaded sling/ krab sets into for rigging etc. So in most our lines i'd recomend both strategies for a DBY, but not in stiffer lines, and always set well. i like making mine quickly using the
Slip knot method of making a Bowline (DBY shown) that i can do
Blindfolded
Bill'em Dano's referance to "The Grogg's" knot sight is great; been my top, lead knot site listed for years; a very nice man (Grogno is i meant!!
). Especially nice is the step by step, and animated motion; also reversible etc.; in clear, bright color ABoK # etc. for many knots. i prefer similar my self, only an Anchor to self to form eye(as a Bowline is a SheetBend to self to form eye), or a Double/Triple Noose-Scaffold-Single Fisher Person's whatever. i like my turns untwisted/uncrossed. i think this is stronger and more secure than Anchor. More secure by virtue of buffering loading to the hitch itself on the other side of krab device with same strategy. Stronger, because usually as we come around and bend Standing Part with Bitters, we leverge the line in this area that has also stopped stretching (so is tapered, not flat-freeflow of force). So now more of line's tensile is used up; because the load now consumes the possible tensile with more than a 1:1 ratio of load to tensile strength remaining.
But, if we just bend around krab and make Anchor to self, there is more than 1 turn on Standing Part and i think that more a firming/fortifying the bend and stretch place just before krab, than just making the bend takes place. Kinda like a strain releif on cord etc. i think the turns on Standing by Bitters more uniformly and gradually bend line and also make stretching of line stop gradually; while also compressing/firming this critical area. So these types of hitches we see higher ratings out of; more for Triple, than Double. Notice if we take RoundTurn around Krab, then perform Triple Turn/"Double Anchor"(?) to self/ Noose, the ratings go down. i think that is becasue there is less force left in the Bitters after a Round Turn to perform the firming/stabilizing action. i like my turns uncrossed; so as to more allow the transferance of this 'firming action' with less resistance. Also, more streamlined; as is having the tail follow up the line like a Y-tie off; and 'cleaner' back around krab; as far as end being in your way, and posssibly upsetting it(?). Also, tooo; when the turns are uncrossed; thefinal stage of the Bitters (just before tail goes thru turns) traps into the krab more squarely and firmly (perhaps even slightly 'denting' line). Whereas if turns cross each other, the last part of Bitters before coming up through turns; seems to me to lay beside krab more. i have found in some stiffer lines, the crossing more necessary to trap turns into the stiffer line/ agisnt it's tendency to stragithen out and 'regurgitate' the knot.
So, i think lacing choice depends on strength, security, application, line stiffness, unloading cycles etc.
