You are allowed to tri-load the seaHorse. Therefore yes, as long as it fits. For more exact information, check the manual, which can be downloaded directly on the page.
@@robindelahiguera7839 Copy-Paste from the manual: An angle of 45° of the anchoring slings must not be exceeded to prevent too high expanding forces. --> You ARE allowed to tri-load the seaHorse.
If the sling is strong there is no issue with girth hitching. Of course it lowers down the breaking strenghth by about 50%, but to say that you should not girth hitch due to that fact is a bit too simple. Girth hitches are really simple to use and really great in certain situations.
@@SlacktivityCh Yes it is probably still strong enough, but if you simply wrap the sling, it will be 4 times stronger than the girth hitch and just as easier or easier to install. Just slip the sling through the hole and then carabiner both ends together - you then have doubled the strength of the sling instead of cutting it in half via the girth hitch. The girth hitch is weak both because of the physics and because of the friction of the knot itself. Perhaps the only advantage via the seahorse is that the girth hitch won't slide around as much because of the teeth on the seahorse, but those same teeth are also an added place of potential failure of the webbing due to friction. Remember that when you use your 15:1 pulley system, you will be applying about 15kn of force (depending on how strong you are) to the girth hitch on a runner that is only rated to maybe 22KN and is reduced to around 11-15kn via the girth hitch. So yes it seems to hold for you, but you are actually approaching the breaking point of a typical runner or piece of webbing using the 15:1 system. (And just as a point of interest, slack line that is installed via a girth hitch around a tree has been shown in the lab to break at only 24kn).
@@markh16 You'll never reach such high forces. Advantage of the girth hitch when using it on the dyneema sling on the seaHorse is that the sling doesn't slide up. Thanks to the girth hitch there is enough friction caused to keep it down. If you would not use it as a girth hitch it would slide up, causing friction on the pulley system. If you don't like the girth hitch method then it is better to not use the seaHorse as a rigging plate, but use an additional rigging plate instead which totally works, but which adds some additional gear. Check out the forces we reached in the following video at the end: ua-cam.com/video/rEdHMDOHbOw/v-deo.html
@@SlacktivityCh So you reached 7.9 KN on a sling that is rated to break at 11 kn when used in a girth hitch configuration. But you had only about 52% efficiency, probably due to friction and stretch in the system. If you were able to reduce the friction and stretch you would easily break the dynema sling in the girth hitch configuration when your Hand Force reached 1.01 (bottom of your chart). Of course you are only using the girth hitch to set up the slack line, so just be careful in case it does break and you get smacked by the sudden loosening of the system. If your efficiency reaches about 75% your gonna be in trouble.
@@markh16 Good point - thanks for the hint. You got me interested on that one - we might do some break tests soon to find out a bit more on it. Good to have critical and logical-thinking people like you out there :-)
Can you connect the seahorse directly to a bfk knot (with the pin) ?
You are allowed to tri-load the seaHorse. Therefore yes, as long as it fits. For more exact information, check the manual, which can be downloaded directly on the page.
@@robindelahiguera7839 Copy-Paste from the manual: An angle of 45° of the anchoring
slings must not be
exceeded to prevent too
high expanding forces. --> You ARE allowed to tri-load the seaHorse.
Girth hitches weaken the slings by about 50%. Don't girth hitch.
If the sling is strong there is no issue with girth hitching. Of course it lowers down the breaking strenghth by about 50%, but to say that you should not girth hitch due to that fact is a bit too simple. Girth hitches are really simple to use and really great in certain situations.
@@SlacktivityCh Yes it is probably still strong enough, but if you simply wrap the sling, it will be 4 times stronger than the girth hitch and just as easier or easier to install. Just slip the sling through the hole and then carabiner both ends together - you then have doubled the strength of the sling instead of cutting it in half via the girth hitch. The girth hitch is weak both because of the physics and because of the friction of the knot itself. Perhaps the only advantage via the seahorse is that the girth hitch won't slide around as much because of the teeth on the seahorse, but those same teeth are also an added place of potential failure of the webbing due to friction. Remember that when you use your 15:1 pulley system, you will be applying about 15kn of force (depending on how strong you are) to the girth hitch on a runner that is only rated to maybe 22KN and is reduced to around 11-15kn via the girth hitch. So yes it seems to hold for you, but you are actually approaching the breaking point of a typical runner or piece of webbing using the 15:1 system. (And just as a point of interest, slack line that is installed via a girth hitch around a tree has been shown in the lab to break at only 24kn).
@@markh16 You'll never reach such high forces. Advantage of the girth hitch when using it on the dyneema sling on the seaHorse is that the sling doesn't slide up. Thanks to the girth hitch there is enough friction caused to keep it down. If you would not use it as a girth hitch it would slide up, causing friction on the pulley system. If you don't like the girth hitch method then it is better to not use the seaHorse as a rigging plate, but use an additional rigging plate instead which totally works, but which adds some additional gear. Check out the forces we reached in the following video at the end: ua-cam.com/video/rEdHMDOHbOw/v-deo.html
@@SlacktivityCh So you reached 7.9 KN on a sling that is rated to break at 11 kn when used in a girth hitch configuration. But you had only about 52% efficiency, probably due to friction and stretch in the system. If you were able to reduce the friction and stretch you would easily break the dynema sling in the girth hitch configuration when your Hand Force reached 1.01 (bottom of your chart). Of course you are only using the girth hitch to set up the slack line, so just be careful in case it does break and you get smacked by the sudden loosening of the system.
If your efficiency reaches about 75% your gonna be in trouble.
@@markh16 Good point - thanks for the hint. You got me interested on that one - we might do some break tests soon to find out a bit more on it. Good to have critical and logical-thinking people like you out there :-)