What is the required ground roll for takeoff given a temperature of 25 °C and pressure altitude of 2,000 ft?

To determine the required ground roll for takeoff under specific conditions such as temperature and pressure altitude, pilots typically consult performance charts or tables provided in the aircraft's Pilot Operating Handbook (POH).

In this scenario, with a temperature of 25 °C and a pressure altitude of 2,000 feet, the correct calculation or reference to the performance charts indicates a ground roll of 261 feet. This value considers the aircraft's performance degradation at higher elevations combined with the given temperature, which can lower engine efficiency and increase ground roll distance compared to standard conditions.

The influence of temperature and pressure altitude on takeoff performance is crucial. As altitude increases, the air becomes less dense, which means that the aircraft's engines produce less power, and lift generated by the wings is reduced. The calculation often incorporates corrections for these variables to ensure a safe takeoff. Thus, for the conditions described, the required ground roll is accurately represented by 261 feet, making it the correct option.