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    Senior Member headchange4u's Avatar
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    Oct 2006
    Dual Layer WB Blackbird
    OES Cuben
    Asym - This refers to a hammock whose shape is not symmetrical, such that if it were folded in half along the long axis, the two halves would not match. This is a technique used to allow for a more comfortable 'diagonal' lay in the hammock by creating more room for the head and feet.

    – This is when the hammock occupant lays straight down the middle of an end-gathered hammock, causing their feet and head to be much higher than their butt. Most hammock occupants find this to be uncomfortable.

    Bear Burrito - A derogatory term used by some bear pancakes ground-dwellers to refer to a hammock and it's occupant.

    Bishop Bag - A typical stuff sack with a small hole on the end opposite the normal drawstring opening (often a button hole). The hole allows a hammock or quilt suspension cord to exit the bag such that the bag can be left in place when the contents are deployed. It is functionally different than a double-closure stuff sack in that there is never any doubt which end of the sack is which, and it allows easier stuffing of the sack since there is no second drawstring to fasten. The concept is named after one of the early members of HF.

    Bivy – Also known as Travelpod or Hammock Sock. A shell that encompasses the hammock to provide wind or water resistance.

    Bug Net - Netting that keeps bugs out of the hammock. Can be permanently attached like the Hennessy line of hammocks, or can be removable like Speer hammocks.

    Catenary-Cut – This is a method of cutting a straight edge of a tarp into a curved line in order to; allow a more taut pitch to the fabric surface and to reduce flapping in the wind.

    Cold Butt Syndrome
    - is what happens to the hammock occupant when the insulation under their buttocks compresses therefore; losing the insulating value resulting in a cold butt.

    Cold sleeper – one who tends to feel colder than that of the temperature rating of their gear (i.e. sleeping bags, under quilts and the like).

    Constrictor ropes - refer to both Whoopie Slings and UCRs, which are both suspension methods made by creating adjustable constricting splices in cording.

    Darts - Z shaped overlap way to shorten the edge of a piece of material. Several darts used on each edge can create a pouch like effect for the enclosed perimeter of the cloth.

    Diagonal Lay - is a method in which the hammock occupant lays with their head on one side and their feet on the opposite side of the hammock. With proper sag in the hammock fabric, this method allows for a flatter lay.

    Diamond fly – is a diamond or square shaped tarp whose ridge line is pitched diagonally over the hammock and has only two stakes to hold it down to the ground.

    Durable Water Repellent - also called DWR. A fabric treatment that improves wind and water resistance but allows the fabric to remain breathable. Can be a chemical wash-in or spray-on treatment to an existing fabric or can be incorporated into the material's manufacture. Generally comes in 1.1 oz and 1.9 oz weights, and useful for projects requiring breathability like hammock, windsuits, quilt shells, etc.

    Dutch clips - These are small lightweight aluminum clips that replace the function of a carabiner in an adjustable webbing suspension. They are named after their designer, who is a member of the forum.

    Figure 9s - small lightweight aluminum clips, marketed by the company 'NiteIze', that are designed to allow the easy holding and adjustment of cording. Commonly used on tarp ridgelines.

    Fly – See tarp.

    Foot box – a compartment in a top quilt or an extension on the right hand side of a Warbonnet Black Bird (a brand and model of hammock) that you put your feet into.

    Grosgrain - (pronounced "grow grain") a ribbon-like material used as trim on many projects or as a structural element on some designs, such as tarp edging or bug netting, allowing tension to be pulled on the netting without ripping the cloth.

    Ground dweller – This is a person who uses a tent, bivy bag, cowboy camps, or otherwise sleeps on the ground while camping for some reason or lack of sense.

    Hammock sock - A shell that encompasses the hammock to provide wind or water resistance and to retain some body heat.

    Hangers – Ones who uses a hammock while camping.

    Hex fly – This is a hexagonal shaped tarp, often elongated. It has a central ridgeline and at least four stakes to hold it to the ground. These usually contain at least one caternary-cut edge.

    Neo tarp - Colloquial name for the camouflage Guide Gear tarps, named after one of it's most famous advocates on the forum.

    Noseeum - netting similar to mosquito netting but with smaller holes. Used to keep insects out of hammocks and as baffle material to separate down chambers in some quilt construction.

    PeaPod - An oversized sleeping bag by Speer Hammocks that completely envelops the hammock, providing insulation above and below the hammock. Because the PeaPod does not drape over the body, a top quilt is often required below about 50 F.

    Quilt loops - single tied stitches from one side of a quilt or under insulation that are often used with batting insulation.

    Ridge Line - Two types of ridgelines.

    First, the structural ridgeline is very tight, non-stretchy, and sets the amount of sag on the hammock. When you pull the hammock supports tight, you're also pulling the ridgeline tight...but since the ridgeline holds a fixed length, the fabric in the hammock body isn't affected. I like it b/c no matter how you hang your hammock, it always has the same amount of sag. Also, you can tie the supports to the tree at a lower level and still have a comfortable hammock b/c it increases the sag.

    Next, non-structural ridgelines are just strung up support bugnets or tarps and don't change how the hammock sags. Some of these are elastic and some are cord, occasionally webbing on some homemade ones.
    Both kinds are good for holding boots, jackets, stuff sacks with nighttime essentials, etc. I always hang my headlamp and emergency whistle up there...that way I can blow the whistle when a bear comes sniffing and never have to leave the hammock. Since I switched to a soft-sided Nalgene I use my water as a pillow, but before that I always had a stuff sack with a snack and bottle of water hung on the ridgeline.

    Hammock ridgelines are also different from tarp ridgelines. Tarp ridgelines are sometimes just a sewn seam running along the center length that needs to be sealed, and some folks actually run a cord for the full length between the trees and the tarp lays on top of it. Each type has advantages...but as I said, don't confuse tarp ridgelines with hammock ridgelines.

    Ridge Ties - The tension lines that are used to suspend a tarp from the trees on tarps that don't have a full-length corded ridgeline. Those tarps typically have a seam along the ridge. (example - the OES MacCat style).

    Sag - Sag describes how tightly the hammock is strung between the trees. If the hammock is very loose between the trees and adopts a "U" shape, it has a lot of sag. This makes it easier to lay on the diagonal. If the hammock is strung tightly, laying on the diagonal will be more difficult and may cause shoulder squeeze.

    Hennessy hammocks have integral ridgelines that set the amount of sag for the hammock, and the sag doesn't change no matter how tightly you hang it. See the "ridgeline" entry for more details.

    Segmented Pad Extender (SPE) - A pad sleeve sold by Speer Hammocks that has wings to hold non-compressible insulation against the occupant's shoulders and hips. Without a pad, the hammock will compress the sleeping bag or top quilt at these points, causing cold spots.

    Shoulder squeeze - is a painful or annoying pressure on the hammock occupant‘s shoulders that happens when lying in a hammock that is too small or strung too tightly.

    Side Tie-Outs - A feature of various hammocks. Elastic lines are attached to the long side of the hammock; these tie-outs are staked to the ground to pull the hammock open. It does not change how the hammock supports the user, but makes it feel more open inside. The elastic also acts as a dampener to reduce the hammock's swing.

    Silnylon - silcone-impregnated ripstop nylon. A ripstop nylon material impregnated with silicone, creating a waterproof, non-breathable fabric. Weight for lightweight hiking gear is usually 1.1 oz per square before the treatment is applied, so the silnylon usually ends up weighing about 1.3 oz per square yard. Also commonly found in 1.9 oz/sqyd. Used for tarps and other projects where breathability is not required.

    Snakeskins – Snakeskins are a tapering cloth tubes that slide over the hammock when you are storing it. Snakeskins make it easier to setup and break down the hammock system, and can also help to keep the hammock dry. Python Skins are oversized snakeskins that are large enough to hold the hammock and an underquilt. They were manufactured by Jacks R Better until Hennessy announced a patent pending, but the term is still used to refer to oversized snakeskins.

    Spinn UL – is a water proof fabric lighter in weight than silnylon used for tarps or other applications where water proofing is important and breathability is not.

    Straps – refers the webbing, normally Ύ” to 1” in width, used to secure hammock to a tree or stand.

    Support line – See Suspension System

    Suspension System - The broad term to describe the connection between the anchoring object and the actual hammock, which can be made from a number of material combinations that consist of but are not limited to: cording, webbing, knots, hardware, etc. Sometimes just referred to as 'suspension'.

    Taco - is what happens when the hammock occupant sinks into the hammock and becomes so engulfed by the sides that they are unable to see out.

    Tarp – Also know as fly or rain fly. It keeps you dry. Tarps on hammocks are generally rectangular (8'x10'), a square hung diagonally (8'x8'), or a shaped tarp (catenary cut).

    Thread injector – a sewing machine

    Top Quilt – An insulating layer used inside the hammock like a blanket on top of the hammocker. An unzipped sleeping bag can also be used as a top quilt.

    Travel pod – see hammock sock

    Tree Huggers – Webbing straps that wrap around a tree and have loops on each end that the hammock ropes tie to. Tree huggers not only reduce damage to the tree but they also are less likely to slip.

    Utility Constrictor Rope (UCR) - is a hardware-free hammock suspension method made by splicing one length of cording through another, thus creating an adjustable constriction. These are commonly DIY items made from 12-strand single-braid cording like Amsteel.

    Undercover – fabric hung on the bottom of a hammock to keep it dry from mist or splashing. It can be used to hold additional insulation.

    Underquilt – An insulating layer that is mounted underneath the hammock on the outside.

    Warm sleeper – is one who tends to feel warmer than that of the temperature rating of their gear (i.e. sleeping bags, under quilts and the like).

    Weather shield - is a fabric panel or tube used on or over a hammock to keep cold and rain out. It is found on some models of Clark Hammocks and as a do it yourself modification.

    Whoopie sling - is a hardware-free hammock suspension method made by splicing the end of a single piece of cording back through the standing end, thus creating an adjustable loop. These are commonly DIY items made from 12-strand single-braid cording like Amsteel.

    Zigzig stitch - stitch used to allow the long length of a stitched line to lengthen with nylon cloth when it stretches under load.


    Companion thread to discuss this article.
    Last edited by Just Jeff; 11-12-2006 at 19:28.

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