Equipped To Survive Equipped To Survive® Presents
The Survival Forum
Where do you want to go on ETS?

Page 3 of 3 < 1 2 3
Topic Options
#290948 - 10/24/18 01:36 PM Re: Arizona Mine Rescue [Re: hikermor]
chaosmagnet Offline
Carpal Tunnel

Registered: 12/03/09
Posts: 3691
Loc: USA
Tjin: “Fatigue” is certainly the correct English term for how metal parts gain small stress fractures over time and lose strength as a consequence.

I’m no metallurgist but I believe you’re correct that aluminum suffers from fatigue at almost any loading (albeit small amounts).

#290950 - 10/24/18 02:44 PM Re: Arizona Mine Rescue [Re: Tjin]
hikermor Offline
Geezer in Chief

Registered: 08/26/06
Posts: 7690
Loc: southern Cal
While not practical for mountaineering situations, my favorite rappel device is the rappel rack;


Developed in 1967 and enhanced/improved since then, it is safe and relatively foolproof.

Most of my rappels lately have been down sea cliffs abd canyon walls to retrieve fossils, which I suppose is a relatively specialized use - also used by window washers, etc...
Geezer in Chief

#290954 - 10/24/18 06:17 PM Re: Arizona Mine Rescue [Re: hikermor]
clearwater Offline
Old Hand

Registered: 03/19/05
Posts: 1174
Loc: Channeled Scablands
Here is one of the first dog leg carabiners. They were a marvel on quick draws when they first came out. Notice how a gate pin at the notch just fell out. I got rid of the batch after that happened.


Can't seem to get the image to show. Anyone have suggestions?

Edited by clearwater (10/24/18 06:19 PM)

Page 3 of 3 < 1 2 3

Moderator:  Alan_Romania, Blast, cliff, Hikin_Jim 
Su M Tu W Th F Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
Who's Online
0 registered (), 69 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Newest Members
Zed6309, Scrapiron, SIMULATIONiQ, joshbrown, reeldoc
5359 Registered Users
Newest Posts
Arizona Fatality
by chaosmagnet
43 minutes 3 seconds ago
A bug that eats through your plastic gas cans
by Ren
Yesterday at 01:04 PM
Anyone here knows about stocks ?
by Chisel
Yesterday at 06:00 AM
There are many good people out there
by Chisel
05/17/22 02:50 PM
76% of Documented Handgun Defenses Against Bears H
by DaveL
05/15/22 12:11 AM
We're Moving Back to Texas
by Phaedrus
05/13/22 09:56 PM
by hikermor
05/13/22 01:09 PM
My Micro Blog
by Chisel
05/01/22 10:56 PM
Newest Images
Tiny knife / wrench
Handmade knives
2"x2" Glass Signal Mirror, Retroreflective Mesh
Trade School Tool Kit
My Pocket Kit

WARNING & DISCLAIMER: SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please review the full WARNING & DISCLAIMER about information on this site.