How to use the T Method to calculate mechanical advantage - IRATA Rope Access Training

How to use the T-Method to calculate mechanical advantages in pulley system. Since I have released the series on mechanical advantages I have been getting quite a few wrong answers on the quizzes in those pulley system video's. Even with the T-method explanation I did in the final video on Complex pulley systems. I realised it might have been a bit short of an explanation so I decided to make a video dedicated to the "T-Method" and how to use it to calculate mechanical advantage in pulley systems.
So in this video I break it down and built from a simple 2:1 pulley system all the way to a very complex inline 19:1 pulley system. That last one is not very practical and it does show how to use the T-Method to calculate mechanical advantage.

Video's mentioned in this video:
What is a Complex Pulley System:

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This is how a SIMPLE pulley system works:

How does a COMPOUND pulley system work:

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CHAPTERS:
00:00 Introduction
03:07 T-Method in a SIMPLE pulley system
04:54 T-Method in a COMPOUND pulley system
06:43 T-Method in Crevasse Rescue System
10:46 T-Method in a Piggyback 4:1
11:51 T-Method in a INLINE Set Of Fours
13:03 SUPPORT the Channel & VRIGGER Deal
14:44 A very COMPLEX 19:1 Pulley System

[TheRopeAccessChannel]

Leave a link to the hardest MA you have found on the internet and lets see if we can solve that now

[MaxwellSimuleya]

Thanks for the videos I enjoyed them always, because rope access is my career.

[simonthomson]

Love the way you said the unit of tension keeps travelling through the system until it meets a knot, anchor or rope clamp. Very clear explanation, awesome knowledge and teaching bro!

[ehsansalahshoor]

You did it perfect and simple Alex, Thanks

[johngo]

Outstanding video, Alex, thanks for all your contributions. ❤️ 👍

[alexiroccos]

Another great video. Keep them coming.

[soriformateur]

In the french rope industry, we call the "crevasse system"..."mariner system "
Another great explanation! Thanks Alex

[Dani_Escalada]

Great content! This method it's very easy to understand!
You could add the estimate percentages on force loss by friction (based on the tests you did of the different devices and pulleys,
That could calculate pretty closely the force needed to lift certain amount of weight.

[rickrieder]

Very good video, I like how following the “T” whether it is 1 or 2 through all ropes is articulated.

[babjesa]

Great stuff! is this something you will be learning in IRATA LV1 Course?

[HolsteiNDreaM]

hello, newbie here ! when you rig to the load, the pulley system is a odd number like 3:1, 5:1 or 7:1, if you rig from an anchor it's becoming an even number like 2:1, 4:1, 6:1, etc... am i right ?

[williamvanleeuwen]

Are there any books on the iratra/WOH parts u could recommend?

[ralfrussel]

How realistic are these ratios? Friction? Pulley efficiencies?
15:55 Shouldn't it be a 10:2 (output over input) which is essentially the same as a 5:1 just that you don't come in with 1?

[unnMike]

Очень интересно, но вряд ли когда пригодиться! )

[GianlucaPonte-tepc]

But why at 8:35 the calculation comes to me like 26:1 the first and 28:1 the second? What do I wrong?

[stevenmason]

8:54 I need to know the answer. I’m not telling you my answer (guess) because I’m new to this.

[JakeGamiao]

Maybe your logic is true BUT your CAPACITY TO EXPRESS THINGS SEEMS a lost battle... You cud hardly explain things comprehensively... only you, guess, is getting what you mean.