Figure eight: Difference between revisions
m →Rolling: - added image description |
m →Rolling: - clarity |
||
| Line 75: | Line 75: | ||
== Rolling == | == Rolling == | ||
[[File:fig8_roller.png|200px|thumb|left| | [[File:fig8_roller.png|200px|thumb|left|When the ropes coming from the figure 8 are pulled in the opposite directions, the knot might capsize and roll over itself]] | ||
The Figure 8 bend knot can capsize and roll over itself already around 3 kN of force (then it snaps). For that reason it is not an ideal knot for tying two ropes together.<ref name=Edelrid2023>{{cite web | url=https://edelrid.com/eu-en/knowledge/knowledge-base/knots-for-connecting-ropes-when-rappelling-comparison | title=Knots for connecting ropes when rappelling - a comparison | publisher=EDELRID GmbH & Co. KG | first1=Florian |last1=Hellberg | date=14 August 2023 | website=edelrid | access-date=16 August 2025}}</ref> There are speculations that the usage of Figure 8 bend knot during rapelling is the reason why the overhand-bend knot is known as an European Death knot in US.<ref>{{cite web | url=https://user.xmission.com/~tmoyer/testing/EDK.html | archive-url=https://web.archive.org/web/20250729104327/https://user.xmission.com/~tmoyer/testing/EDK.html | archive-date=29 July 2025 | url-status=live | title=Pull Tests of the "Euro Death-Knot" | first1=Thomas | last1=Moyer | date=11 September 1999 | website=xmission.com | access-date=16 August 2025}}</ref> | The Figure 8 bend knot can capsize and roll over itself already around 3 kN of force (then it snaps). For that reason it is not an ideal knot for tying two ropes together.<ref name=Edelrid2023>{{cite web | url=https://edelrid.com/eu-en/knowledge/knowledge-base/knots-for-connecting-ropes-when-rappelling-comparison | title=Knots for connecting ropes when rappelling - a comparison | publisher=EDELRID GmbH & Co. KG | first1=Florian |last1=Hellberg | date=14 August 2023 | website=edelrid | access-date=16 August 2025}}</ref> There are speculations that the usage of Figure 8 bend knot during rapelling is the reason why the overhand-bend knot is known as an European Death knot in US.<ref>{{cite web | url=https://user.xmission.com/~tmoyer/testing/EDK.html | archive-url=https://web.archive.org/web/20250729104327/https://user.xmission.com/~tmoyer/testing/EDK.html | archive-date=29 July 2025 | url-status=live | title=Pull Tests of the "Euro Death-Knot" | first1=Thomas | last1=Moyer | date=11 September 1999 | website=xmission.com | access-date=16 August 2025}}</ref> | ||