Recent content by cells

the longer the line the lower the acceleration force for a given velocity at 10km radius and 100g, assuming a drone could do 100g velocity should be ~3.1km/s being crazy you would need to get toward 300g and 20km radius to get towards 8km/s and into orbit. detach a payload and let it fly and...

:) is that a joke to say that they will fall and not fly? google have some project called project makani where they seem to be flying a drone on a teather

by electric jet engine i meant an electric engine on a jet so no specific design. I remember watching a video about jet engines and it said that at high speeds (>2x the speed of sound) one of the bigger problems is the need to slow down the air in the compression stage and then speed it up...

I would have thought during the acceleration phase being lower in thicker air would help as thats the stuff you are pushing against?

Just being silly but lets say an electric jet motor could produce twice as much thrust at half the weight of a conventional jet engine. Well they can do 500KN at a mass of 8 tons so lets just pretend an electric version can do 1,000 KN at a mass of 4 tons Lets pretend we have two such engines...

Im not sure what you mean The blackbird aircraft holds the record of speed at close to 1km/s and at a high altitude. That is done by a normal jet engine carrying fuel and breathing air But anyway this idea is to get a lot of speed when very close to the ground, in the order of 1km/s - 10km/s...

I was just thinking, what is the max speed and acceleration an electric jet could reach if it didn't have to carry any batteries. Imagine a jet flying just a few feet off the ground pulling power from a live and earth strip it is just touching lightly via some conductive pole or even perhaps via...