Aerospace companies including Facebook, Boeing and Google have been trying for years to create a solar-powered plane that can fly at high altitudes for years at a time, and can provide broadband communication services. They could have many uses, for example…
“China is building a modern and regionally powerful navy with a limited but growing capability for conducting operations beyond China’s near-seas region,” said CRS report “China Naval Modernization: Implications for U.S. Navy Capabilities—Background and Issues for Congress.” “Observers believe China…
Despite their airborne maneuverability, helicopters, with their skid-or-wheel landing gear, still need a level surface to set down which are scarce in combat and rescue missions. Landing on an uneven surface could them to tip over or the rotor blades…