Which setup would best minimize off-target drift for an airspeed of 150 mph?

To minimize off-target drift at an airspeed of 150 mph, the most effective setup typically involves considerations such as droplet size, nozzle type, and application height. The ideal configuration would ensure that the pesticide or chemical formulation is delivered with precision and stability, reducing the likelihood of drift due to wind or thermal currents.

A setup that incorporates larger droplet sizes is preferable because larger droplets are less susceptible to drift compared to smaller ones, which can easily be carried off-target by wind. Additionally, using nozzles designed for high-speed applications ensures that the material is effectively delivered at the optimal angle and pressure for the given airspeed, further decreasing the chance of drift.

The operational height also plays a critical role; maintaining a lower altitude during application helps minimize the distance droplets must travel through the air, reducing exposure to wind. This combination of droplet size, nozzle configuration, and proper application height would collectively contribute to reducing off-target applications and ensuring that the pesticides hit their intended target as efficiently as possible.

Therefore, Setup A is likely optimized in these aspects, making it the best choice for minimizing off-target drift at the specified airspeed.