UAV

Unmanned Aerial Vehicles - some sort of an ultralight aircraft, but unmanned.

Description of ultralight aviation site

Country

Aerosonde

The Aerosonde UAV is developed and operated globally by Aerosonde Pty Ltd (AePL) and Aerosonde North America (AeNA). It has been undertaking operations worldwide for over 10 years, was the first UAV to cross the Atlantic Ocean (1998), has flown for over 32 hrs in one stretch and has undertaken continuous operations with relay aircraft extending over several days.

Australia

UAV on Wikipedia

An unmanned, aerial vehicle (UAV) is an unpiloted aircraft. UAVs can be remote controlled or fly autonomously based on pre-programmed flight plans or more complex dynamic automation systems.

USA