Wow, best video I've watched! Short, simple fantastic explanation of how pulleys work providing the mechanical advantage. Thank for taking the time to produce this video and sharing your knowledge. Bill.
@borealriver4 жыл бұрын
Thanks so much!
@michaelodonnell57585 жыл бұрын
Best vid I've found by far!!Thank you thank you! Clear explanash & videography I show this before teaching it. 9 to 1 tho getting a wee bit carried away ther unless of course you're solo hauling some deep, heavy, booty from under the seas. But that's what friends are for.
@borealriver4 жыл бұрын
Thanks for the positive feedback! Clear explanations are what we're going for. True: pretty unusual to use a 9:1 in river rescue...it's more common for vertical raising systems where one or two people are managing a 'haul' line.
@bowlineobama11 жыл бұрын
Thank you for the video. It is easy to understand going from 3 to 1 to 5 to 1 to 9 to 1.
@borealriver7 жыл бұрын
Awesome. Thanks for your comment!
@hewagoda6 жыл бұрын
very good explanation..thanks
@janew3269 жыл бұрын
Thanks very much for the clear and helpful video. This made the z-drag easy for me to understand.
@borealriver7 жыл бұрын
Thanks Jane. We're glad the videos are helpful to you.
@svenjohnson54 Жыл бұрын
This is a great video thanks for sharing. How much cord (untied) do you usually start with when tying a prusik?
@borealriver Жыл бұрын
Around 1.2m is a good length because you could use it for multiple applications and adjust the tail lengths depending on how big a Prusik loop you want
@BryanHansen7 жыл бұрын
At 5:1 are you exceeding the limits of that 6 mil prussik?
@borealriver7 жыл бұрын
Hi Bryan, it all depends on how much force you pull with. We often use these prussiks in 5:1 systems and greater. Also: in theory the 3-wrap prussik would slip before it breaks
@borealriver6 жыл бұрын
Hi Bryan. Usually not. But it would depend on how much force you pull with. We use 6mm cord for our prussiks most of the time.