Especialidades JA/Amarres/Respuestas
Amarres | ||
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División Norteamericana
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Destreza: 1 Año de introducción: 2018 |
Requisitos
1
Un amarre es una disposición de cable de cuerda o cincha con un dispositivo de enlace que se usa para asegurar y sujetar dos o más elementos de una manera algo rígida. Los amarres se aplican más comúnmente a los postes de madera y se asocian comúnmente con carga, contenedorización, movimiento de exploración y navegación.
2
Los amarres se pueden usar para construir artículos útiles en un campamento. Si en un área donde se permite recolectar madera, el campista con las habilidades adecuadas puede construir los artículos necesarios en lugar de empacarlos.
Three categories of items that lend themselves to lash construction include:
- Furniture
- Table, chair, and even beds.
- Shelter
- Lean-to, super shelter, tree cot, baker's tent (frame), etc.
- Tools & Utensils
- ladder, tripod for cooking, coat hangers, etc.
3
3a
3b
The imperfections inherent in natural materials allows for greater amounts of friction to develop between the work pieces (spars and ropes). In contrast dimensional lumber pieces will require higher amounts of tension in wraps to achieve similar holding power.
4
4a
4b
4c
5
5a
Start with a timber hitch (can substitute clove hitch for smaller work pieces) and end with two half hitches backed by a clove hitch.
5b
Start with a clove hitch and end with a clove hitch.
5c
5d
5e
6
7
- Wrap
- es un giro alrededor de los dos palos para mantener los palos juntos. Por lo general, se hacen tres envolturas para formar un amarre cuadrado. Algunas otras ataduras requieren más envolturas.
- Frap
- es un giro entre los palos. Rodea las envolturas para apretarlas más. Por lo general, se realizan dos fraps en un amarre.
8
8a
8b
8c
8d
8e
9
Natural Ropes
- Manila
- Made from the leaves of the Musa textillis tree in the Philippine Islands.
- Sisal
- Made from the leaves of the Agave sisalaua plant that is native to central America. Sisal and Manila are the strongest natural material ropes with a 10% stretch factor.
- Hemp
- Made from an annual herbaceous plant native to west and central Asia. Hemp is 2/3 as strong as Manila and Sisal rope.
- Cotton
- Made from the white, downy, fibrous substance that covers the seeds of the cotton plant.
- Coir
- Made from coconut husks.
Synthetic Ropes
Synthetic ropes are all man-made from different types of plastics. They have unique names that reflect their different properties. The strength of the synthetic rope is at least twice that of Manila or Sisal rope. The main types of synthetic ropes are:
- Polypropylene and polyethylene
- These are plastic ropes which stay afloat and are not affected by water. They are designed for marine purposes; they are tough and have good abrasion resistance. However, they have low stretch and heat resistance.
- Terylene or polyester
- These ropes stay afloat and are not affected by water. They have high heat resistance, but have low stretch.
- Nylon
- These have a high level of strength, do not float and are affected by wet conditions.
They have good stretch and moderate heat resistance. Nylon 6 is used in rock climbing and nylon 66 is used in abseiling. Nylon is resistant to abrasions, bacteria and most organic solvents. It is sensitive to strong acids, alkalinity and long exposure to sunlight.
10
Rope should be Coiled up and hung up in a dry place, or put in a box or bucket. The box or bucket should have holes to let the rope breathe. This will help against rot and odors.
The wood should be bundled up and racked off the ground in a dry place, like on a wall or hung from the ceiling. If outside, the wood should be wrapped in a tarp or oiled canvas to keep out water.
11
11a
11b
11c
11d
11e
References
- Categoría: Tiene imagen de insignia
- Adventist Youth Honors Answer Book/Honors/es
- Adventist Youth Honors Answer Book/es
- Adventist Youth Honors Answer Book/Skill Level 1/es
- Categoría: Libro de respuestas de especialidades JA/Especialidades introducidas en 2018
- Adventist Youth Honors Answer Book/North American Division/es
- Adventist Youth Honors Answer Book/Recreation/es
- Adventist Youth Honors Answer Book/Recreation/Primary/es
- Adventist Youth Honors Answer Book/Stage 50/es
- Adventist Youth Honors Answer Book
- Adventist Youth Honors Answer Book/Do at home