Recent content by Rescuetech

Thank you very much. From your math, 600 lbs. would exceed the ladder rating which supports what I have been told that the ladder gin does not support 2 person load.

Hi, I have another rescue system math question pertaining to angles again. Here is the background: NFPA defines 1 and 2 person loads as being 300 lbs for 1 and 600 lbs for 2. In rescue we have this setup called a ladder Gin, a method of creating a High point anchor point as shown in figure...

Well heck, that makes sense, I think I get it. Did I just learn some Trigonometry? Very cool. This math stuff is kinda cool and to think even a guy like me can do it :) Thanks all, I think I have some more basic questions if that is okay. I would really like to take a trig class, but my...

I really appreciate the help. I had to go and watch a few you tubes on right triangles to understand how to name the adjacent and opposites. I thought they were fixed but now understand it depends on what angle I am looking at. So I did what you suggested, sin(80.6)* opposite/613 =...

Well I thought the first thing I should do for this problem is set up my right triangle and label it properly. Not sure I did. I took the 161.2 deg angle and divided by 2 for 80.6 then subtracted (90+80.6) from 180 for my other angle of 9.4 deg. Now where I am unclear is my angles. Is the 80.6...

Thanks for the quick reply. We use the term vectors a lot. Especially when using rescue tripods, our force vectors must stay within the tripod footprint or risk the tripod will topple. I am grabbing my trig book and will see if I can do this thanks.

Greetings; I am a firefighter so physics is pretty much Greek to me. I work primarily as a rope rescue/USAR tech. We work a lot with rope, pulley's, and anchor points. All of these systems have angles that affect the loading in our system. Now I been taught rules of thumb when constructing a...