Electric-jet engines or plasma-jet thrusters can connect with solar energy.

Image 1)

The plasma-ion thrusters and plasma-jet engines can have virtually unlimited operational time. The problem with electric jet engines is that they must have electricity from somewhere.

There are two ways to make virtually unlimited operational time for aircraft. The first one is to use nuclear power.

And that kind of system is otherwise easy to make. But nuclear power technology is an extremely dangerous thing. A damaged nuclear reactor can deliver highly radioactive containment to a very large area. If that craft will drop. It can cause nuclear pollution in large areas.

There is the possibility to make solar-powered aircraft that use plasma jets or plasma ion thrusters. The idea is that the aircraft. Much like a U-2 spy plane would fly at high stratospheric attitudes. In those altitudes, long wings are necessary.

Lockheed U-2 "Dragon lady" (Redditt)

Those wings can be coverer by using solar panels. The thin air makes low friction. And it makes it possible that this system can fly at quite a fast speed. But solar-powered aircraft can also be hypersonic. Energy production can boost by using windmill turbo generators.

But another way is to make hypersonic aircraft that use plasma thrusters or plasma jet engines. The system bases the ability to make origami-type lightweight solar panels that can be pulled inside when the craft is not using them. The hypersonic aircraft can jump away from the atmosphere, open its solar panels. When the batteries are loaded that craft can drop back into the atmosphere.

While traveling in the atmosphere, the aircraft can use a windmill turbogenerator. For slowing the emptying of batteries.

The fact is that the solar-windmill generator combination can use along with remote loading systems. The remote loading system can shoot the aircraft by using radio rays. '

For loading the electric systems in the night time. The thing is that imagination is the limit in futuristic concepts. Energy production with green systems is a very interesting thing because there is always a risk of accidents.

https://geekerhertz.com/article/uncovering-chinas-new-electric-plasma-jet-engine

https://interestingengineering.com/new-electric-jet-engine-actually-works-inside-the-atmosphere

https://www.theengineer.co.uk/plasma-jet-microwave-wuhan/

https://en.wikipedia.org/wiki/Pulsed_plasma_thruster

https://en.wikipedia.org/wiki/Lockheed_U-2

Image 1) https://geekerhertz.com/article/uncovering-chinas-new-electric-plasma-jet-engine

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