What is the approximate ground roll under the following conditions: temperature 60 °F, pressure altitude sea level, weight 3,000 lb, headwind 10 kts?

To calculate the approximate ground roll distance for takeoff under the given conditions, we need to consider several key factors, including the weight of the aircraft, the effect of air temperature on engine performance, the influence of pressure altitude, and the effect of wind conditions, especially the headwind component.

At a temperature of 60 °F and a pressure altitude at sea level, the air density is relatively high, which enhances engine performance and lift generation. This results in a shorter ground roll. The weight of the aircraft is also a crucial factor, with a load of 3,000 lbs indicating that the aircraft is at a manageable weight for takeoff.

The presence of a 10-knot headwind is particularly significant. The headwind effectively reduces the ground speed required for takeoff, allowing the aircraft to achieve takeoff speed more quickly. This means that the aircraft will cover less distance on the ground before becoming airborne. Considering these factors, a headwind will contribute to a reduction in the ground roll distance needed for takeoff.

After applying the relevant performance charts or calculation methods, including adjustments for the headwind and the weight, we arrive at an approximate ground roll distance of about 660 feet. This reflects an appropriate response to the aircraft’s weight