Systems and methods for unmanned aerial vehicle navigation

An unmanned aerial vehicle (UAV) comprising:

• a processor;
• a camera configured to detect navigational signals in the range of at least one of visible light or infrared light frequencies;
• at least one acoustic sensor configured to sense acoustic signals;
• a memory containing:
• data representing at least one flight path of a different aircraft;
• data representing at least one flight corridor;
• program instructions executable by the processor to calculate a first flight plan to avoid the at least one flight plan and the at least one flight corridor and to store the first flight plan in the memory;
• program instructions executable by the processor for the UAV to fly according to the first flight plan;
• multi-modal logic executable by the processor to calculate a second flight plan based on the first flight plan and input from the camera and at least one acoustic sensor;
• and
• program instructions executable by the processor for the UAV to fly according to the second flight plan,
• wherein the UAV is capable of vertical takeoff and landing;
• a wireless network interface;
• and
• the memory further comprising:
• program instructions executable by the processor to receive flight plan information from other UAVs via the wireless network interface;
• program instructions executable by the processor to calculate a third flight plan based on the second flight plan and the received flight plan information;
• and
• program instructions executable by the processor for the UAV to fly according to the third flight plan.