Let's Do Some Rocketry !?

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I have calculated several interesting scenarios and recently found out that if you have Xenon and an MPDT ( magnetoplasmadynamic thruster ) drive you can actually reach the famous " ludicrous" speed. For this 3rd stage ( or after the third stage ) it can accelerate to an almost 1 000 000 km/h speed ( with no fuel to brake ). It needs also 200 m2 solar panels ( origami like in the fuse ).
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This can speed up into 11.1 km/s speed with chemical rockets and then an additional 219 km/s with Xenon ( 500 kg ).
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Only the second stage booster is not reusable...all others are. Or would be. This is very lite and small but all numbers add up nicely.
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I'll explain a bit more. This is not able to land on Mars as it is. But packing everything tightly with solar panels and all. This has gotta be the way of the future for space travel for years to come ( MPDT ).
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An another comparison share light about its economical aspects that come with the "small" size.
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Mars flying and space travelling cannot become any cheaper than this. System may cost three fold compared to jet fighter, but that is still pretty cheap as one launch of the space shuttle cost 450 000 000 US dollars.
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Few percent size increase to get a man on the mars surface on back to Earth. This brings feasability to the " 3XD" Project.
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This has got more boost now.
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Here is Space Ship Two...the tank is bigger than I drew above.
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To tell you about the possible top speed of this device you may want to get familiar with the term Oberth effect and gravity assist. Since the MPDT is able to produce delta-v of 3500 km/s and Oberth effect can multiply this speed 16 fold when passing the sun...then here is the picture to get you familiar with the planetary aligned gravity assist. In my mind this is the only way to actually reach other star systems.
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These should convince you that at really high speed the space rocket can also be flown like an aeroplane. Space becomes dence at relativistic speeds.There are 1.8 atoms per 1 cm3 in empty space.
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The weight of the fuel has been increased by 20% ( by just making bigger casings ). So I have two stage rocket now and all stages are reusable. Any comments ?
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Here my math for the aeroplane type rocket efficiency.
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One way to explain this is this picture here. Small craft capable to reach orbit and jettison the " parasite" craft able to move from Earth to Mars...and spread the solar arrays like a sail boat....and get some decent speed increase with minimal weight loss.
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