What is the approximate ground roll for an airplane at a pressure altitude of 6,000 ft and weight of 2,800 lb with a 14 kts headwind?

What is the approximate ground roll for an airplane at a pressure altitude of 6,000 ft and weight of 2,800 lb with a 14 kts headwind?

• A. 842 feet
• B. 642 feet
• C. 742 feet
• D. 942 feet

Answer: (C)

To determine the approximate ground roll for an airplane at a pressure altitude of 6,000 feet, it is critical to consider how factors like altitude, weight, and wind conditions affect takeoff distance.

At 6,000 feet, the air density decreases which generally leads to a longer ground roll due to lower engine performance and less lift being generated by the wings. It means that while the airplane's thrust and lift are negatively impacted, the airplane still needs to reach a certain speed for takeoff.

The weight of the airplane also plays a significant role in determining the ground roll. A takeoff weight of 2,800 lbs indicates a relatively light aircraft, which can typically achieve takeoff speed relatively efficiently, but still requires adequate distance to build up sufficient speed.

In this scenario, the presence of a 14 kts headwind contributes positively to the takeoff. The wind's headwind component effectively reduces the ground speed required to achieve lift-off speed, therefore shortening the distance needed for takeoff.

Considering these factors, an approximate ground roll distance of 742 feet would account for the effects of altitude, weight, and the headwind, making this answer reasonable and fitting within expected performance metrics for such an aircraft under the given conditions. Thus