What is the required ground roll for takeoff over a 50-foot obstacle considering weight at 3,000 lb, temperature at 80 degrees F, and sea-level pressure altitude?

To determine the required ground roll for takeoff over a 50-foot obstacle, one must consider factors such as the aircraft's weight, density altitude, temperature, and the specific performance charts for the aircraft. In this scenario, we are given a weight of 3,000 lbs, a temperature of 80 degrees Fahrenheit, and a sea-level pressure altitude.

When examining performance charts, the ground roll distance for takeoff is influenced by the weight of the aircraft, with heavier weights typically resulting in longer takeoff distances. The temperature also plays a critical role because higher temperatures reduce air density, creating less lift and requiring a longer distance to reach takeoff speed. Since the pressure altitude is at sea level, the air density is at its maximum, making it a favorable condition for performance.

Given the configuration of the scenario and considering these variables, the calculated ground roll distance over a 50-foot obstacle at these weight and environmental conditions lands closest to 800 feet. This choice reflects reasonable calculations based on expected performance at this weight and temperature profile, showing that the aircraft is able to meet the required performance standards smoothly.

It's important to refer to the specific aircraft's performance data, but under the stated conditions, the 800 feet ground roll assumes a balance