Aerial rigging applies to the hanging of aerial silks. It later transitioned to an aerial reconnaissance role. Some U.S. commands also credited aircraft destroyed on the ground as equal to aerial victories. His aircraft became entangled in an aerial belonging to a wireless station. This resulted in the quadcopter configuration becoming popular for small unmanned aerial vehicles. His team uses technology platforms for ground, aerial, and satellite-based remote sensing. The process also involves capturing of digital aerial photographs. Evolution of aerial warfare introduced its own air combat tactics. Testing continued through 1999, finishing with sea trials and aerial refueling demonstrations. The festivities concluded that evening with fireworks, both aerial and ground displays. Field units were given maps that were only of use for aerial navigation. Intended primarily to protect armored formations on the move against aerial attack. Specialised aeroplanes for aerial combat were introduced in 1915. Public imagination seized upon the novelty of aerial combat. The US also engaged in a sustained aerial bombing campaign.