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Paracord: Seven Twisted Nylon Yarns in a 32-Strand Braided Sheath
Parachute cord is a nylon core inside a braided nylon sheath. In the military Type III ('550 cord'), each core yarn is three bundles of fibre twisted tight, 7 to 9 yarns make the core, a 32-strand sheath is plaited over them, and the cord is steamed to tighten it (Wikipedia, from MIL-C-5040H). It must hold at least 550 lb.
The picture: Type III paracord opened to show its core yarns (Wikimedia Commons).
Juu
Days
Maagizo
1
1
Twist the core yarns
Twist the core yarns
Twist three bundles of nylon fibre tightly together into one core yarn. Make seven core yarns, as long as the cord you want.
Vifaa kwa hatua hii:
Nyuzinyuzi za nailoni100 gZana zinazohitajika:
Kisokota cha mkono
Rula2
2
Set up 32 sheath strands
Set up 32 sheath strands
Lay the seven core yarns together through the centre of the stand. Hang 32 nylon strands round its rim for the sheath.
Zana zinazohitajika:
Stendi ya Kusuka Msuko wa Mviringo3
3
Plait the sheath over the core
Plait the sheath over the core
Braid the 32 strands round and over the core, keeping the tension even, so the sheath closes tight round the yarns.
Zana zinazohitajika:
Stendi ya Kusuka Msuko wa Mviringo4
4
Steam it tight
Steam it tight
Steam the finished cord to tighten it.
Zana zinazohitajika:
Kipulizia mvuke cha nguo5
5
Check it
Check it
Type III should give at least 225 ft per pound of cord, hold at least 550 lb, and stretch at least 30 % before it breaks.
Zana zinazohitajika:
Mizani ya mizani-mbiliRulaVifaa
1- Kishikilia Nafasi
Zana Zinazohitajika
5- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
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