Final answer:
Both aircraft should adjust course to the right when a larger UAS is converging head-on to prevent collision. Pilots must consider wind velocity using a vector equation to maintain a correct ground track and perform last-minute maneuvers for a safe landing.
Step-by-step explanation:
When a larger Unmanned Aircraft System (UAS) is converging head-on, it is a common flight rule that both aircraft should adjust course to the right. This ensures that the aircraft avoid each other safely. This convention is similar to vehicular traffic rules on the road, where each driver shifts to the right to avoid a head-on collision.
In the context of navigation and dealing with crosswinds, pilots have to account for wind velocity when setting their bearings to make sure the aircraft's ground track aligns with the intended direction of travel. This involves creating a vector equation involving the velocity of the plane with respect to the air and the velocity of the air with respect to the ground. Pilots use the angle indicated by this equation to compensate for the crosswind, aiming the plane slightly into the wind to maintain a straight path over the ground. For landing, a pilot must calculate the angle to approach the runway relative to the air mass, considering factors like wind speed and direction, and the plane's airspeed. Following these calculations will help the pilot ensure a safe landing with the wheels pointing straight down the runway.
Lastly, pilots might have to perform last-minute maneuvers known as a crab or a slip to align the aircraft with the runway just before landing, countering the lateral drift caused by the crosswind.