With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements: I. All types of UAVs can do vertical landing. II. All types of UAVs can do automated hovering. III. All types of UAVs can use battery only as a source of power supply. How many of the statements given above are correct?
Explanation
Unmanned Aerial Vehicles (UAVs) are aircraft systems operated without a human pilot onboard. Their capabilities depend on design type (like fixed-wing, multirotor, or hybrid) and power source.
I. Vertical landing – Only VTOL and multirotor drones can do vertical landings. Fixed-wing UAVs cannot. II. Automated hovering – Only multirotor drones and advanced hybrids can hover. Fixed-wing UAVs cannot hover at all. III. Battery-only power – Not all UAVs use batteries. Larger ones may use fuel, hybrid, or solar power.
None of the statements are correct.