"Lehman8" and "Zeppelin loop " - which is more difficult to untie ?

Please shed your own brightness on where Mobius
said ANYthing in this thread about “Hunter” ?!
(The computer search is pretty easy & quick,
and there is no such statement; only I brought
in that name, as part of a descripiton.)

So, you referred to nonexistent statement(s).

:frowning:

No, Mobius himself was referring to the “false Zeppelin” - replying to what YOU wrote ! :slight_smile:
Perhaps you think that there is ( and that you can describe it…) a difference between the structure of the Hunter s bend and the Hunter s-like structure you were talking about… To me, the important structural difference, ( which has nothing to do with the good or not “balance” of a Zeppelin-like knot ) is the difference of how the first curve of each link of the bend is attached to each other. As I had mentioned MANY times in the past, when those first curves are parallel and not “hooked” to each other, we have Zeppelin-like bends - when they are hooked ( = interlinked directly, without an intermediate “pivot” ), we have Hunter-like bends. Of course, one can tie falsely tied Zeppelin-like bends, and falsely tied Hunter-like bends, but that is not the point I was talking about.
( To learn more about what a Zeppelin-like bend is, and about other Zeppelin-like bends, visit again some threads you may have forgotten… (1) - you may see what I mean ).

  1. http://igkt.net/sm/index.php?topic=4090.0

P.S. What is the relevance of what dL is talking about, with the subject of this thread, only KnotGod knows…
Of course, shifting the goalposts as far away from the “Lehman8” and the “Zeppelin loop” swamp as possible, is, perhaps, the wisest thing one can do… even if it is the ONLY thing he can do.

The standing parts interlock directly with the smitHunter, wheras the Zeppelin does not. The smitHunter knot and the Zeppelin I know the difference and can recognise it. The ‘false’ Zeppelin I tied is a “b” “d” and the standing parts are not “hooked”, I just was not careful enough forming the “q” and interchanged the roles of the standing end and the tail. My false Zeppelin collapses under load and jams at around 20% MBS, or less, in the trials I did with it.

Cheers,

mobius

I doubt that your "false Zeppelin" was the "falsely tied Hunter s bend", as you believe it was. An unstable knot, which becomes elongated and even can be untied by itself, does not jam ! ( Unless you had made it become "compact" - but then you would had spotted the mistake immediately ). It should had been an X-ed ( X=crossed tails ) or a "twisted" form of it, or even the Hunter s bend itself, which is known as an easily jamming bend.
We had a long thread 4 years ago about the "falsely tied Hunter s bend" in this Forum, with dozens of pictures of all its "twisted" variations. (1)

( Of particular interest is the contribution by dL :slight_smile: - about something ELSE, of course, as always ( about the Buttefly bend …)

1. http://igkt.net/sm/index.php?topic=3204.0

Thank you xarax.

The knot I tied I consider to be a failed Zeppelin rather than a failed smitHunter, however the knot is the same as the one you show on your link and describe in that link as “so the whole bend works more like a Zeppelin bend, than a genuine Hunter s bend, i.e. it is a kind of rope made hinge” . The hinge part of it and the non-hooked standing parts led me astray.

Below are some trial images of this ‘false’ Zeppelin. I snugged the knot as tight as I could by hand before load. The rope material I am trialling in these images is a 6mm PE/PP marine grade blend rated at 630kg MBS. The 2nd image is at only 10% MBS and the knot is already not going too well. The last image is at 20% MBS (about 125 kg) and the knot is completely collapsed and is jammed solid.

Cheers,

mobius


bd false z.JPG

bd false z10%.JPG

bd false z20%.JPG

  1. Indeed, the name of this knot should had better been “false Zeppelin bend” than “Falsely tied Hunter s bend” - but I had found the name, which existed before my time, and so I had left it as it was.
  2. I had never loaded the “false Zeppelin” / “falsely tied Hunter s bend” so heavily, to see if it would become compact by itself, or remain “flattened” so I did nt know that it could ! ! I was under the ( false, as you show ) impression that, when it will be loaded, it will be elongated ( as it happens in your second picture ) and then it will slide along the “pivot” and it will be untied - but that it will not jam. Therefore I had not believed that this was the knot you had tied. However, this may had been helped by the fact that I never pull the tails of the Zeppelin bend : it is one of the bends that, after you form and set it up, it is self-dressing - moreover, like the Ashley s bend, during tightening it does not “consume” its tails ( the Hunter s and the Butterfly s bend do ). It seems that if you pull it snag in the first place, as you did, you may help it to go all the way to the compact, spherical form, without been elongated very much.
  3. Now, if you simply cross the tails of this bend ( i.e., tie the X=crossed tails variation ), then yes, it remains more stable and 'flat", and it does not become more elongated, even if its tails are not pulled at all - and so I supposed that you may had tied the X-ed version - which looks like the Zeppelin bend, indeed, and may be mistakenly seen so ( the compact form, shown in the third picture, is so different, I could nt believe that it was mistakenly seen as the Zeppelin bend ! )
  4. When / if this bend reaches the compact / spherical form you show in your third picture, it would be anticipated that it will jam easily - because it is not much different from the Hunter s bend, which does jam easily, indeed. I could nt imagine you had tied this bend, and thought that you had tied a Zeppelin bend ! That is why I was joking with dL s comments. Of course, in the end I was right, because I know what his real motive was : just push the goalpost of the difficult-to-untie bends which were supposed to be the subject of this thread a little further ! :slight_smile: :slight_smile:

The X-ed “falsely tied Hunter s bend”, is such a stable “b & p” Zeppelin-like bend - because the robustness offered by the Xed=crossed tails enables it to regain some of the lost balance, due to the unfavourable alignment of the Standing Parts of the two links.
However, another method is simply to use, as the leaves of the hinge, one overhand knot link and one fig.8 knot link. The bend becomes asymmetric, but very stable. ( Now, which end you should collar, in order to form the fig.8 link, is something you, too, can find out… :slight_smile: ).

And here are some half decent images to assist with the discussion on topology.

I am slowly building towards another paper on ‘end-to-end-joining-knots’ (ie bends). This is just a sample of some photos showing topology.

I also have a half decent photo of the SmitHunter (#1425A) with crossed tails X.


Zeppelin_loose.JPG

Some photos of SmitHunter #1425A

…and also the X version with crossed tails (which seems to be jam resistant).


SmithHunter-X-1425A.JPG

I believe it is jam resistant. I was quite excited to ‘discover’ this knot for myself a few weeks ago. After asking Mark and Dan about it in private I found out that Asher had beaten us all to it :smiling_face:

I called the knot ‘Infinity’ at the time. It seems like a very good bend so it deserves a good name. I have yet to do more trials (this time in larger 6mm PE/PP ), however you can see what I did here http://tinyurl.com/infinitybend if you wish.

Cheers,

mobius

" half decent " … You are doing it on purpose ! OK - I decided I have to buy a new camera.
Your images are TALKING ! :slight_smile: And they look like they will start WALKING out of the paper…

My opinion is that ( symmetric ) “bends” = end-to-end knots belong to a class of knots which is relatively “easy” : That is why we already have dozens of dozens of them, and it seems like we can tie any number of “new” ones we wish : by retucking the ones we already know, twisting their Standing parts around each other at one ore more points ( the crossing of “tails” is nothing but such a transformation ), etc. There also seems to be no end in sight in the Fisherman-like bends, where each link is made from one of the many known stoppers or hitches… However, I do not believe there is anything really new to discover in the field of bends : I “feel” we know everything about them - and I have to notice that, unfortunately :slight_smile: , there is this great, superb other-bend-extinguisher, the ( single and double ) Zeppelin bend, which makes much of the journey to this part of KnotLand almost pointless…
Having said that, I also want to mention that there is a new class of knots, which are very useful and interesting, and of which we know NOTHING ! The bends tied on tropes made from the very strong but also very slippery materials ( UHMWPE, poly(p-phenylene-2,6-benzobisoxazole), and all that :slight_smile: :slight_smile: ). I would suggest, to anybody who would like to contribute to the field of practical knotting, to offer his time to this subject, rather than the “finished” subject of bends tied on ordinary material. And the procedures I had referred to, by which we can transform and improve the already known bends, is a good starting point one can start this much-needed exploratory journey, I believe.

There are TWO distinct Hunter X bends ( X=crossed tails ) :
http://igkt.net/sm/index.php?topic=3251.msg19608#msg19608

Not me in that “us” --I think I beat Asher to it by
some years, and will lay claim in any case on account
of his dismissal of it vs. the correct assessment! >:(

:wink:

Sorry Dan, I must have misinterpreted what you told me :hushed_face:

It is a very good knot, as good as, IMHO (if not better), than the Zeppelin. I still need some time to finish testing it, I was even thinking that I might try some 3mm Dyneema in it and see whether it holds.

Cheers,

mobius

Just to be clear : I am alert to attacking what strike me
as “fan boy” raves about the z. and to advance what
IMO are often --per situation-- better knots, such as either
Ashley’s (#1452) & (1425 (not “1425a”)).

But, I will also remark that my keys ring is tied onto small
binding cord (a hollow braid of nylon=>“polyester flat braid”, which semi-flattens) [2023-07-23 edit]
closed by the z. with ends so short that their fibres are
mushroomed/spread against the knot body, and this
has been in place for a decade or longer** (I have no reason
to untie it) !! --while pretty much all knots, including
a z. tied in some of the small, 3/16"(4mm?) solid
braid nylon play cords tied to this key cord (along with
a small (10’) tape measure have inevitably loosened.
The holding zeppelin is by no means “tight/jammed”,
but those mushroomed tails done=>don’t come out, and the [2023-07-23 edit]
knot must not take much of abrasion/rubbing the
way the slightly flattened small cord sits.
(**could be two decades!)

–dl*