What are the vertical descent angle and rate of descent at a groundspeed of 105 knots on final approach to RWY 36?

To determine the vertical descent angle and the rate of descent at a groundspeed of 105 knots during the final approach to runway 36, a specific relationship between the angle of descent, groundspeed, and rate of descent is applied.

For a typical approach, an angle of descent can be calculated using the formula:

[

\text{Rate of Descent (feet per minute)} = \text{Groundspeed (knots)} \times 5

]

This formula indicates that for every knot of groundspeed, a rate of descent of approximately 5 feet per minute is realized at an angle of about 3 degrees. Given a groundspeed of 105 knots, applying the formula yields:

[

\text{Rate of Descent} = 105 , \text{knots} \times 5 , \text{feet per minute/knot} = 525 , \text{feet per minute}

]

However, to arrive at the specific options provided, the vertical descent angle needs to be refined to typical values used in most commercial flight approaches. The descent angle increases with speed to maintain a stable approach path.

The angle of 3.0 degrees with a rate of descent of approximately