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內政部空中勤務總隊全球資訊網-英文網

Aviation Info

Helicopter rescue operations

Introduction to common rope knots

Introduction

This program is intended to improve the knowledge of rescue workers about ropes they use and the limits of using them on board of a helicopter.
This program consists of basic and advanced contents. Please point out any possible mistake as the program goes on.
The program is taught with discussions and hands-on experience.

Types and ropes and their structures

(1)Twisted structure pictures

(1)Twisted structure

(2)Woven structure pictures

(2)Woven structure

Natural fibers
- Hemp and cotton
  - Manila hemp ropes
  - Sisal hemp ropes
  - Cotton thread ropes

• Synthetic (chemical) fibers
- Nylon
  - Nylon ropes
  - Woven nylon ropes
- Vinylon
  - Vinylon ropes (Japan)
- Polyolefin
  - PE (polyethylene) ropes
  - PP(polypropylene) ropes
- Polyester
  - Tetoron ropes
  - Woven tetoron ropes

Basics of knots and their types

Every part of rope:
Types of knot: half hitch knot, fast knot, figure-eight knot

Rope collection

Common ways of rope collection:

Rope collection pictures

1. Rope collection

Strap collection pictures

2. Strap collection

Collection of rappelling ropes:

Figure-8 arrangement (rope is release outwards) pictures

1. Figure-8 arrangement (rope is release outwards)

Collection in a bag (rope is collected downwards) pictures

2. Collection in a bag (rope is collected downwards)

Figure-eight knots

Figure-eight knot (slide knot):

Figure-eight knot (slide knot): Knot making (2 total pictures)

Knot making (1)

Knot making (2)

Figure-eight slip (slip knot)：

Figure-eight slip (slip knot) Knot making (2 total pictures)

Knot making (1)

Knot making (2)

Double figure-eight knot：

Double figure-eight knotKnot making (2 total pictures)

Knot making (1)

Knot making (2)

Figure-eight bowline：

Figure-eight bowlineKnot making (2 total pictures)

Knot making (1)

Knot making (2)

Bunny knot：

Bunny knotKnot making (2 total pictures)

Knot making (1)

Knot making (2)

Directional figure-eight knot：

Directional figure-eight knotKnot making (2 total pictures)

Knot making (1)

Knot making (2)

Figure-eight sheet band (water knot)：

Figure-eight sheet band (water knot) Knot making (2 total pictures)

Knot making (1)

Knot making (2)

Rope connection knots

Sheet band：

Sheet bandKnot making (2 total pictures)

Knot making (1)

Knot making (2)

Figure-eight sheet band (water knot)：

Figure-eight sheet band (water knot) Knot making (2 total pictures)

Knot making (1)

Knot making (2)

Water knot：

Water knotKnot making (2 total pictures)

Knot making (1)

Knot making (2)

Fisherman’s knot：

Fisherman’s knotKnot making (2 total pictures)

Knot making (1)

Knot making (2)

Square knot：

Square knotKnot making (2 total pictures)

Knot making (1)

Knot making (2)

Strap knots

Water knot：
Bowline：
Prusik hitch：

Anchoring in the cabin

Anchors in helicopter：

1. Multiple anchors in series are more reliable.

2. Safety anchoring strap for cabin access

Descend anchoring [one person]：

1. Check the rope, buckles and strap.

2. Two or more anchors are safer.

Descend anchoring [2 persons]：

1. Anchoring for rope descend

2. Anchoring for rope descend

anchoring：

1. Short-distance lifting assembly

2. O-ring