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A high altitude platform can provide observation or communication services. A high-altitude platform station (HAPS, which can also mean high-altitude pseudo-satellite or high-altitude platform systems), also known as atmospheric satellite, is a long endurance, high altitude aircraft able to offer observation or communication services similarly to artificial satellites.
The Hawk30 flying-wing is a development of the NASA Pathfinder and NASA Helios high-altitude, long-endurance unmanned aircraft built by AeroVironment for NASA. [2] Resembling the 1999 Helios, the tailless aircraft is a 256 ft (78 m) span flying wing with 10 electric-driven propellers. Orbiting at 65,000 ft (20,000 m), it is solar-powered by day ...
Timeline of artificial satellites and space probes – A comprehensive list of artificial satellites and space probes. Timeline of space travel by nationality; Timeline of spaceflight – Chronological list of events in spaceflight broken down as a separate article for each year
The first flight of the system designed for high altitude pseudo satellite (HAPS) role was planned from 2019. It is a solar powered high altitude drone with an endurance level as far as 3 months at a cruising altitude of 70,000 ft (21,000 m), weighing 500 kg (1,100 lb).
Expanded data set of previous Explorer missions and collected data from Argus high-altitude nuclear explosions. [1] 11.7 kg (25.8 lb) August 17 US: Pioneer 0: Thor-Able 1: Failure: Failed to orbit. First stage engine failure caused explosion at T+77 seconds. 38 kg (84 lb) August 24 US: Explorer 5: Juno I: Failure
The Zephyr is a series of high-altitude platform station aircraft produced by Airbus. They were designed originally by QinetiQ, a commercial offshoot of the UK Ministry of Defence. In July 2010, the Zephyr 7 flew for 14 days. In March 2013, the project was sold to Airbus Defence and Space. In the summer of 2022, the Zephyr 8/S flew for 64 days.
A series of flights were planned to demonstrate that an extremely light and fragile aircraft structure with a very high aspect ratio (the ratio between the wingspan and the wing chord) can successfully take-off and land from an airport and can be flown to extremely high altitudes (between 50,000 feet (15,000 m) and 80,000 feet (24,000 m ...
Due to its large size, the timeline has been split into smaller articles, one for each year since 1951. There is a separate list for all flights that occurred before 1951. The list for the year 2025 and for its subsequent years may contain planned launches, but the statistics will only include past launches.