Abstract: The ParaDrop Operation Transponder (100) is a device that increases safety, visibility, and separation of paradrop operations by aircraft and air traffic controllers at high-volume airports and remote off-airport DZs (drop zones) for use at all altitudes and during night and day operations. The ParaDrop Operation Transponder (100) provides aircraft the ability to avoid parachute canopies utilized during high speed free fall, all weather and/or night operations. When the aircraft cannot physically see the parachute canopies, the aircraft can still locate the ParaDrop Operation Transponder (100) location on their traffic in-cockpit screens in real time. The GPS transponder (700) within the device is an ADS-B/Mode-S out device that enables the aerial jumper (90) to be detected by Secondary Surveillance Radar (SSR), Traffic Collision Avoidance Systems (TCAS), and ADS-B IN receivers.

Abstract: A rotating wing aircraft has a rotating fuselage and wings. The aircraft is configured to rotate with the air passing over the wings because of the rotation providing the lift needed to keep the aircraft aloft. The wings have rudders coupled to them, such as at the tips of the wings, to provide force for laterally moving the aircraft. The aircraft may be able to remain airborne by hovering for a long period of time, on the order of days. Power for the aircraft may be provided by a central diesel electric generator, which provides power for electric motors that turn propellers that are on the wings. The aircraft may be used for any of a variety of applications, such as for surveillance, communications, or as a radar platform.