MDA puts a reference line on _____. DH puts a reference line on _____.

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Multiple Choice

MDA puts a reference line on _____. DH puts a reference line on _____.

Explanation:
The important idea here is how minimums are referenced and displayed in the cockpit. MDA is a minimum descent altitude used on non-precision approaches and is tied to a barometric (pressure-based) altitude reference. That’s why the line for MDA sits on the barometric altimeter tape, which shows altitude above mean sea level. DH, on the other hand, is a decision height used on precision approaches and corresponds to height above the terrain (above ground). It’s shown on the radar altitude tape, which indicates height above the surface. So, MDA is represented on the baro altimeter tape, and DH is represented on the radar altimeter tape.

The important idea here is how minimums are referenced and displayed in the cockpit. MDA is a minimum descent altitude used on non-precision approaches and is tied to a barometric (pressure-based) altitude reference. That’s why the line for MDA sits on the barometric altimeter tape, which shows altitude above mean sea level. DH, on the other hand, is a decision height used on precision approaches and corresponds to height above the terrain (above ground). It’s shown on the radar altitude tape, which indicates height above the surface.

So, MDA is represented on the baro altimeter tape, and DH is represented on the radar altimeter tape.

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