Open ghobona opened 6 years ago
High-Altitude Platforms (HAPs) are aircraft or airships that operate in the stratosphere at altitudes of up to 22 km, typically to provide communication facilities that can exploit both terrestrial and satellite schemes.
High-Altitude Platforms (HAPs) are aircraft or airships that operate in the stratosphere at altitudes of up to 22 km, typically to provide communication facilities that can exploit both terrestrial and satellite schemes.