What is the total landing distance over a 50-foot obstacle at a temperature of 35°C, pressure altitude of 2,000 ft, and weight of 3,400 lb?

• A. 1,675 feet
• B. 1,475 feet
• C. 1,058 feet
• D. 2,000 feet

Answer: (B)

To determine the total landing distance over a 50-foot obstacle, various factors such as the aircraft's weight, temperature, pressure altitude, and environmental conditions play a crucial role. In this case, the specified conditions include a temperature of 35°C, a pressure altitude of 2,000 feet, and a weight of 3,400 pounds.

In general, as the temperature increases, the air density decreases, which can negatively affect the aircraft's performance. Additionally, aircraft typically require longer distances to land at higher temperatures due to reduced lift. The pressure altitude and weight also contribute to the landing performance; higher altitudes generally require longer distances to land because of thinner air, and more weight increases the landing distance due to the greater kinetic energy that needs to be dissipated.

Based on calculations or performance charts specific to the aircraft in question, 1,475 feet accounts for the combined effects of the high temperature, pressure altitude, and aircraft weight, providing an accurate estimation of the landing distance required over a 50-foot obstacle. This value is consistent with expected performance under the given conditions, which indicates that the aircraft’s performance meets the requirements for landing distance accurately, unlike the other options which may underestimate or overestimate the usual performance parameters for similar conditions