rescue training ladder gin (derrick)

[@reamer2002]

Thanks for the great teaching moment.

[@fredcsensits4476]

After my recent CMC class.The only thing I got to say is wow

[@you2tooyou2too]

I recommend that you practice using this arrangement a few times, to iron out a few kinks, before you use it on a living person. re 1:57 I wonder who tested that pump fitting for 5kN shear/lever force safety? And the blue main guy. re 3:34The bite-8s should be dressed better, so they don't collapse under load during operations. re 4:41 The tech failed to isolate the side-guys from the patient load! & one is under and the other is over the ladder. Also, the ladder was not constructed to resist significant lateral forces on the rails. (Check the NFPA/ASTM for such a ladder standard or test.) Also, consider mounting the upper pulley directly to the ladder rung, to uncompromise the side guys, and dramatically reduce the "Awkward Angle Shift" when the haul team pulls the top tackle block out of load alignment at the start of the patient lift. re 9:44 Note that the prusik is at risk of being released by the edge of the door hinge, especially if the webbing over the end of the pump fitting slips. re 12:20 Casually interchangeable, but typically, a derrick is a hoisting apparatus employing a tackle rigged at the end of a beam(the ladder). A gin pole is usually a vertical post used to raise a post, column, or mast section during construction. re 12:51 Testing the sag with one (fat) man only 2/3 up the ladder for a life safety system expected to hoist 2 or more + gear + hauling forces(X2) is inexcusable. You should have calculated the probable load on the main (only loaded) guy, & watched more videos, and more critically before filming this "demo". Simple main guy load: 200# X 2 X more than 2 = ~1000# (assuming only pt & basket and no stretch). Double that for a rescuer & gear and the added stretch angle multiplier! Then look at your ladder & guy anchor(not shown) and ask yourself "What is the weakest component life safety rated?" BTW: Most identified life safety equipment is rated in kN (1#=4N), but pump outlets & water cannon parts are not.

[@mantisshrimp9731]

I don't like the idea of using the intake manifold or the deck gun as anchors. We always used the wheels