An unmanned aerial vehicle (UAV) adapted for transit in and deployment from a projectile casing is provided. The UAV includes a wing assembly coupled to the projectile casing and the wing assembly moveable between a closed position and a deployed position. The UAV further includes a propulsion system including at least one rotor disposed on the wing assembly to generate lift, wherein in the closed position, the wing assembly is substantially integral with the projectile casing and in the deployed position, the wing assembly is extended outwards from the projectile casing.

An unmanned aerial vehicle (UAV) adapted for transit in and deployment from a projectile casing is provided. The UAV includes a wing assembly coupled to the projectile casing and the wing assembly moveable between a closed position and a deployed position. The UAV further includes a propulsion system including at least one rotor disposed on the wing assembly to generate lift, wherein in the closed position, the wing assembly is substantially integral with the projectile casing and in the deployed position, the wing assembly is extended outwards from the projectile casing.

A non-motorized flying unit for observation according to an exemplary embodiment of the present disclosure includes: a body part which is mounted on a launcher, launched in a direction toward a preset target when the launcher operates, and falls, by its own weight, toward the ground from a position of a top dead point (TDP); a propeller unit which is coupled to the body part, and automatically generates rotational force by means of drag force applied to the body part when the body part falls so as to decrease a falling velocity of the body part; and an image capturing unit which is installed on the body part, and obtains image information in respect to the ground when the body part falls.