Link rear for M149?

Link rear for M149?

• A. 75
• B. 20
• C. 90
• D. 3

Answer: (C)

In sling-load operations the balance and stability of the load depend on the rigging geometry, especially how the rear lift point (the rear link) is oriented relative to the load’s center of gravity. For the M149 water trailer, the rear link is set at ninety degrees to the trailer. This right-angle configuration keeps the load level, ensures balanced tension between the front and rear sling legs, and minimizes pendulum motion during transport. When the rear link is at 90 degrees, the load’s weight is distributed more predictably, making control safer and set-down more precise. Angles like seventy-five, twenty, or three degrees would create uneven tension and cause tilting or swaying, which increases the risk of instability or contact with the helicopter or ground. So the ninety-degree rear link is used to maximize stability and control during the lift.

In sling-load operations the balance and stability of the load depend on the rigging geometry, especially how the rear lift point (the rear link) is oriented relative to the load’s center of gravity. For the M149 water trailer, the rear link is set at ninety degrees to the trailer. This right-angle configuration keeps the load level, ensures balanced tension between the front and rear sling legs, and minimizes pendulum motion during transport. When the rear link is at 90 degrees, the load’s weight is distributed more predictably, making control safer and set-down more precise.

Angles like seventy-five, twenty, or three degrees would create uneven tension and cause tilting or swaying, which increases the risk of instability or contact with the helicopter or ground. So the ninety-degree rear link is used to maximize stability and control during the lift.