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EXW - Expeditionary Waterborne Fundamentals TEST questions and answers.
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EXW - Expeditionary Waterborne Fundamentals TEST questions and answers.
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EXW - ExpeditionaryWaterborne Fundamentals
TEST questions and answers
What is a security zone?
Are established to provide protection to HVAs and to control
civilian/commercial vessel traffic in the designated area.
Security is in three zones
1. Reaction Zone
2. Intercept Zone
3. Assessment Zone
Reaction Zone
- extends at least 1,000 yards/meters from the HVA. - unidentified or
potentially hostile contacts are engaged with increasing levels of force
until they retreat outside of the zone or are no longer a threat. Potentially
hostile threats are not allowed to approach the HVA inside this minimum
distance. Any vessel traffic in this zone must be kept under positive
control.
Intercept Zone
- extends at least 1,000 yards/meters from the outer boundary of the
reaction zone away from the HVA. - to increase the time to react to a
threat. Screening vessels (SVs) patrol this zone and intercept COIs
entering this zone to determine their intent. Vessel traffic in this zone is
controlled
Assessment Zone
The assessment zone is the outermost security zone for HVA protection
and extends to the reach of organic and inorganic sensors.
Zone Considerations
The size and layout of a tactical security zone should be the minimum
necessary to ensure the safety of the HVA, while minimizing the impact on
legitimate port operations. The key factors that determine the size of a
security zone are the physical characteristics of the area, the threat, and
available assets. The speed of tactical boats and the predicted speed of
threat boats and weapons' effective employment ranges should also be
considered when determining zone sizes.
, Zones
Factors that determine navigability of waterways
currents
depths of waterways
water levels
natural obstacles
manmade obstacles
Currents
The river current along a route has a significant effect on fuel
consumption and speed capability, anchoring, craft orientation, and
tactical operations.
Depth of waterways
The depths of the various waterways in a riverine AO affect route selection
as well as anticipated speed of advance.
Water levels
In most riverine areas, water levels are an important factor in riverine
movement planning and execution. For safety, chart datum display depths
on a navigation chart from a low-water surface or a low-water datum.
Riverine forces must possess up-to-date navigation charts and know how
water levels compare to chart datum wherever they operate.
Natural Obstacles
Natural obstacles in the riverine environment include floating debris,
rapids/whirlpools, low hanging branches and limbs, underwater stumps
and roots, and sandbars.
Manmade Obstacles
Manmade water obstacles are numerous and can range in complexity and
size from simple fish stakes to earthen dikes. The enemy may place some
obstacles designed to damage craft or foul propellers just below the
surface to avoid detection.
Guard Mount
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