Given specific conditions, what is the total takeoff distance over a 50-foot obstacle?

The total takeoff distance over a 50-foot obstacle is calculated based on several factors, including aircraft weight, atmospheric conditions, and runway characteristics. The distance is effectively influenced by the aircraft's performance capabilities, which are often specified in the aircraft's flight manual.

In this context, if the chosen answer is 1,500 feet, it suggests that, under the given specific conditions, this is the distance required to safely clear a 50-foot obstacle during takeoff. This figure indicates that the aircraft has sufficient thrust-to-weight ratio and climb performance to meet the obstacle clearance requirement within this distance.

The figures for other choices might either exceed or fall short of optimal performance calculations for the specific aircraft and conditions presented, which could lead to safety issues if they indicate insufficient distance to clear the obstacle. Therefore, 1,500 feet reflects a balance of performance and safety, making it the correct answer.