The new rainbow solar unmanned aerial vehicles without fuel, flying from the sun to absorb energy.
New rainbow solar unmanned aerial vehicles, wingspan of 45 meters, relying on efficient solar cells in the 20,000 meters altitude flight, the future leave time or for several months to several years.
UAV life is too short, many people feel distressed for this. If the power source into solar energy, the results may be quite different.
Speaking of solar aircraft, had to mention "Sunshine Power 2", many people also two years ago, "swagger" of the global flight memories. This Swiss-made solar aircraft, wingspan reached 72 meters, second only to the giant plane A380 wingspan, but the weight is only about 2300 kg.
The most surprising thing is its power source. The solar aircraft did not use any fuel, relying on the 17248 high efficiency solar cells on the wing. In March 2015, the plane took off from the Gulf area began flying around the world, and has come to China's Nanjing, Chongqing. 118 hours of uninterrupted flight from Nagoya, Japan to Hawaii, USA; 70 hours flying across the Atlantic Ocean. And finally in June 2016 back to the Gulf region, the completion of human first solar global flight feat.
The advantages of solar aircraft are obvious. However, this monster, but can only take a pilot, and can not carry passengers, because the solar energy efficiency is limited.
Relatively speaking, the lightweight UAV to achieve the global flight is much easier.
In fact, the world from the eighties of last century began the study of solar unmanned aerial vehicles, initially in the United States, and later the United Kingdom, Germany, China and other countries have also joined. Early relatively well-known models, such as "sun god" series of unmanned aerial vehicles are mainly equipped with scientific instruments, for the Antarctic ozone layer and other environmental hot issues, to carry out high altitude atmospheric science research task.
May 24 this year, China Aerospace Science and Technology Corporation 11 independent research and development of new rainbow solar unmanned aerial vehicles, in the northwest to complete a near space flight test, a complete success, attracted a lot of attention. China has thus become the United States, Britain, the third master of space near the solar energy unmanned aerial vehicle technology countries.
This lightweight solar unmanned aerial vehicle is also a "big head", wingspan of 45 meters. According to the new rainbow solar unmanned aerial vehicle chief engineer Shi Wen introduction, this UAV core technology and equipment to achieve all the localization.
Solar unmanned aerial vehicles without fuel, flying from the sun to absorb energy. This means that once a sufficiently high system efficiency and level is achieved, continuous flight can be achieved. Theoretically speaking, it has infinite flight, if the equipment system is reliable enough not to damage, you can always fly down. China Aerospace Science and Technology Institute of UAV UAV Institute researchers said that fundamentally speaking, solar energy unmanned aerial vehicles rely on efficient energy management, high conversion rate of solar cells, high energy ratio of energy storage batteries.
Many people still have doubts, no sunshine at night, and how to fly the solar unmanned aerial vehicles It is understood that the general to the night, no one will reduce the flight height, reduce energy consumption, relying on the day has been full of electricity in the sun battery energy flight.
Shi Wen said that the future of solar energy unmanned space can be as long as several months to several years, and the flight height of more than 20,000 meters, with "quasi-satellite" features.