My Ideal 2-in-1 Climbing Lanyard, with the DMM Captain Throwing Hook

Climbing lanyards are a highly personal thing and there’s no perfect solution for all climbers in every environment. It’s more about personal preference, using new or old school gear. I’ve come up with a number of various lanyard systems based on what I want to do, how I am going to do it, and how secure I’ll feel in the process.

This article focuses on lanyards which are similar but slightly different than fliplines.  A rope lanyard may be used like a steel core flipline, but fliplines are often accompanied by less tree-friendly climbing spurs that harm the tree’s cambium layer and is recommend for use, only when felling a tree. I prefer non-invasive tree climbing methods, in the hopes of leaving no adverse footprints.

In addition to the primary climbing line, a climbing lanyard is an essential component for a tree climber. It offers additional tie-in-points for added safety and affords significantly greater movement within the canopy. There are lanyards and flip-lines of varied lengths. Lanyard kits usually include a carabiner or a rope snap and some sort of rope grabbing device or hitch tending system, as the lanyard’s adjuster.

If you are relying completely on the lanyard and no longer connected to your primary climbing line, you may not always be able to abort the climb and reach the ground without a climbing line switchover in a possible emergency situation. IMHO, there’s a lot to be said for always having a your own dedicated line to the ground, or some way to make a relatively quick and safe descent to the ground at all times, so there’s that to consider too.

The traditional lanyard connects in two places, usually on the lower D-rings located near the climber’s hips, on the climbing saddle. One side remains fixed and the other is an adjustable point of contact, using a rope grabbing device like a hitch tending pulley and hitch cord, or a mechanically adjustable rope grab. This creates a moving rope system (MRS).

An alternative way to use a lanyard is by lanyarding onto the saddle’s central bridge in an stationary rope system (SRS), where both the fixed and adjustable points are relatively close together, or self-anchored. The essence of any lanyard system is that be becomes a secondary climbing system, relying on either a single or doubled rope system, commonly referred to as SRS or MRS.

The concept of a 2-in-1 lanyard takes advantage of a lanyard’s unused end. A number of augmentations are available to suit a variety of configurations. Adding another rope snap and a hitch-tending pulley can turn a single use lanyard into a true 2-in-1, but using a DMM Captain throwing hook in place of one of the two carabiner/snaps can also broadly expand a climber’s positioning ability.

The DMM Captain throwing hook gives the climber an efficient and convenient way to hook a climbing line onto a tree, with a life-bearing load potential for greater maneuverability. Beyond that of just a simple lanyard, the 2-in-1 Climbing Lanyard combines both a lanyard and a throwing hook into a multi-functional SRT climbing system. Even with all the conveniences this offers,  a climber may still want have use a separate, shorter, more basic MRS lanyard, primarily for quick tie-ins, facilitating positioning, or when needing to facilitate work positioning to advance the primary climbing line.

Connecting a DMM Captain directly to a lanyard’s sewn eye termination is an efficient option, but the hook is then committed to just that lanyard line, unless you have the right size hex wrench on hand.  It’s also important to be able to twist the hook’s line while navigating, setting or releasing the hook from an intended target. Using a swivel as way a to connect a lanyard onto the hook defeats the ability to maneuver the hook when twisting the line. Connecting the hook to the lanyard line using a Quickie, versus a bulkier carabiner is a nice way to keep the DMM Captain on your harness and then use it when needed. This type of indirect connection avoids having to unscrew the hook’s two screws using both a 2mm and 4mm size hex wrench.

The DMM Captain throwing hook’s kit comes with a stash bag and a 15m (50′) of 10mm Sirius Cord with a sewn eye at one end of the line’s termination. Because the hook’s line tends to get twisted or hockled during normal use, some may prefer not to incorporate the hook in to a 2-in-1 lanyard system. Getting a line untwisted can be a pain at times,  so some climbers prefer the less augmented throw line, rather than a 2-in-1 lanyard.

When the end of the lanyard’s throwing hook is securely engaged,  it creates a gravity dependent stationary rope / SRT, Hook-in-Point, not to be confused with a traditional Tie-in-Point. The throwing hook has a greater propensity to slip or move, without being locked in to position.

Having a throw line and throw bag on hand to use as a means to advance or re-position a climbing line or lanyard is doable, but using a lanyard, augmented with the DMM Captain saves a lot of time and hassle. For production climbers, a throwing hook and throw line are also great when used for rigging.

The virtues of the DMM Captain are still being discovered, enabling a more convenient, efficient and reasonably secure ways to traverse between trees. There’s to a lot of discussion over which rope grab or belay device compliments the DMM Captain the best. Many climbers prefer a simple friction hitch and pulley, while others prefer a mechanical progress capturing device.  There are advantages to both, depending on the type of climb and the climber’s preference.

The consensus for a which progress capture device may best compliment a multi-functional lanyard usually  points toward the one time popular and no longer available Trango Cinch. The basic rope grab, a hitch-tending prusik with a micro-pulley, even a Sticht Hitch offers the basic benefits when used in a doubled rope system, but mechanical devices like a ID, Rig or GriGri, or even a multicender can be used as a lanyard adjuster, as long as it holds the climber’s full weight and can be used safely as a progress capture device and to rappel, using either a single or doubled rope configuration. An Akimbo may not work effectively with non-approved ropes used as lanyards, so be sure your device is compatible with your specific lanyard rope type.

The DMM Captain is not personal protective equipment (PPE) and should not be used as a primary climbing system exclusively, but only as a secondary or subsequent climbing system. With this in mind, a mechanical descender like a Petzl Rig, a Grigri, or a Trango Cinch, or similar devices offer greater ease both in descending, ascending, traversing, using an optional 3:1 mechanical advantage (Rad) system.

The DMM Captain also comes with a great little red carabiner that clips into the top of the hook for easier transporting. Despite the small size, it has a 4kN, or a 899.2358 pound force rating. It’s not PPE, nor is it intended to use as a way to connect the hook to and from other throw lines. Therefore, this high valued piece of climbing gear can be used as its intended hook storage clip, or possibly as a chest harness clip instead. It’s clearly a matter of personal preference, but just a friction knot and hitch climbing pulley as a descending device on an SRT climbing system is not recommended.

Other considerations with respect to the choice of climbing line used with a DMM Captain hook have to do with the line’s cover being able to endure  abrasion from normal wear and tear. Resilient or abrasive resistant 10 mm (2/5″) polyester or kernmantle covered climbing lines are great choices among many climbers, although some prefer 11mm to  13mm (1/2″) lines with the thicker grip. Thick grip with comfort and strength, versus thinner, lighter and more resilient for throwing purposes. The choices are endless.

My ideal 2-in-1 SRT Climbing Lanyard is comprised of the following components:

  • A 45′ bite of HTP Static 7/16” by Sterling, with sewn eyes on both ends.
  • A red Rock D Auto-locking carabiner connected on one end of the lanyard line. Keep in mind, other sufficiently rated rope-snaps or locking carabiner work to connect the lanyard onto the climber’s harness or the self-anchoring Thimble Prusik.
  • One end of the lanyard can be managed using a multicender, versus a more basic rope grab. I prefer a Hitch Hiker 2, or even a Unicender for a long lanyard adjuster, or second climbing line.
  • I like the second lanyard multicender to be easily attachable, like a Petzl Rig to adjust the throw hook end of the lanyard’s climbing line, but that only gets installed when using the throw hook.
  • A Sterling Thimble Prusik, provides a adjustable self-anchoring connection directly onto the lanyard, but many other types of rope grabbing adjustable anchors can provide a similar function.
  • Between the carabiner and the thimble are two MARCS (mid-line attachable rope and cambium savers) rope sleeves from Climbing Innovations.
  • On the other terminal end of the lanyard line is the sewn eye with a removable Tree Quickie, connected to a DMM Captain throwing hook.
  • The final component for creating a 3:1 mechanical advantage uses a Rad system , in my case, with a Hand Ascender and a Roll Clip.

Since the DMM Captain hit the scene, people have been sharing lots of great tree climbing videos, demonstrating the hook’s various uses. In some cases, people are ascending on a hook’s climbing line at various angles, including in a directly vertical manner for very short ascents, which may or may not have been the original intended use from the manufacturer’s point of view. Still, with the proper choice of a rope-grabbing adjuster, mechanical belay device or multicending device, in conjunction with a suitable choice of lanyard line and a good life-bearing load capable hook-in-point. It seems further evident that it can be effectively used in this manner, with proper discretion when identifying potential risks and utilizing specific hook-in-points with adequate strength to support and maintain the climber’s weight.

Safety wise, I check and inspect all components on this lanyard, both before and after each climb, with emphasis on the sewn eye termination end  where the DMM Captain connects onto the climbing line and wherever friction is a factor. More importantly, when using a lanyard with the throwing hook, one must be extra mindful to avoid getting it snagged, possibly due to a wayward throw, thereby causing the climber to potentially abandon the entire lanyard, pending its retrieval.

Whether this 2-in-1 can actually be called a true 2-in-1 Lanyard is open to debate. Perhaps the better name should be a Dual-in-1 Lanyard, being how it combines best of both a throwing hook augmented climbing line and a floating or fixed anchor lanyard.

Depending on the climb objective, the more basic lanyard shown below will never replace the Dual-in-1 Lanyard, but it certainly provides a far more lightweight and compact alternative. My 15′ lanyard uses a bright green 13mm  Edelrid – Direction Up climbing line, equipped with a generic aluminum rope snap on one end, and a Petzl Micrograb Flipline Adjuster.

Over time I’ve come to realize the benefits of having several size hanks of lanyard lines, each with removable components. The basic 15 foot lanyard facilitates fast and easy tie-ins, while the longer lanyard serves as a secondary SRT or DdRT climbing system in a variety of configurations. I also always remain attached onto a primary climbing system while using a non-PPE rated throwing hook/lanyard.

DMM Captain – product into

Guide to Fliplines / Lanyards and Adjusters in Tree Climbing

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