Final answer:
Group 1 Unmanned Aerial Systems (UAS) are typically hand launched, while the other groups are not.
Step-by-step explanation:
Group 1 Unmanned Aerial Systems (UAS) are typically hand launched. These UAS have a maximum takeoff weight of less than 0.55 pounds and are used for recreational purposes. They are commonly known as hobbyist drones.
Group 2, Group 3, and Group 4 UAS are larger and are not typically hand launched. They have different weight limits and are used for various purposes, such as commercial aerial photography, scientific research, and military operations.