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Thread: Let's Do Some Rocketry !?

  1. #1
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    Let's Do Some Rocketry !?

    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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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  2. #2
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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 ).
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  3. #3
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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.
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  4. #4
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  5. #5
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  6. #6
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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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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  7. #7
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    This has a landing gear it needs.

    https://www.youtube.com/watch?v=TFcCx4uR6rk
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  8. #8
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    An another comparison share light about its economical aspects that come with the "small" size.
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  9. #9
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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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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  10. #10
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    Ludicrous speed explained; https://www.youtube.com/watch?v=ygE01sOhzz0
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  11. #11
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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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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  12. #12
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    More of my space oddities can be found here; http://spacefellowship.com/Forum/vie...243863487c9d8e
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  13. #13
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    This has got more boost now.
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  14. #14
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    Here is Space Ship Two...the tank is bigger than I drew above.
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  15. #15
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    Here is more about this Spaceshiptwo.

    http://www.virgingalactic.com/human-.../our-vehicles/

    My design is pretty much based on a similar idea.
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  16. #16
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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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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  17. #17
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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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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  18. #18
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    Stageing has evolved.

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

    See how effective the solar panels can be nowadays...and lite.
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  19. #19
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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 ?
    Attached Images Attached Images  
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  20. #20
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    Here my math for the aeroplane type rocket efficiency.
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  21. #21
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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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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  22. #22
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    I have no idea why Michi Kaku abandons the MPDT drive here; https://www.youtube.com/watch?v=cLxx_saZEGY

    He gets the mass fraction of the chemical rocket wrong ( by 10% ) when talking about mass of the fuel on a rocket. He also has a magnitude error in the distance to the Alpha Centaur ( 10 000 times around the Earth ).

    But he does pretty well tell what a MPDT is all about.
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  23. #23
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    NASA on SAP ( Solar Electric Propulsion ); https://www.youtube.com/watch?v=iCPFKBo7rco
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  24. #24
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    Food and oxygen production.
    Attached Images Attached Images  
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  25. #25
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    I switched to SRBs ( solid rocket boosters ) and started to get some serious numbers for this.
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  26. #26
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    It does not sound like great achievement, but it enables to make the trip at top speed of 136 km/s ( averaging possibly 80 km/s ).

    It means around 17 days ( 15 tops ) to get to Mars using MPDT. Coming back may take a bit longer ( 20-25 days ).
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    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  27. #27
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    Let us speculate a bit. If the theory above allows us to travel 37,5 % more efficiently to orbit it actually means that we can get 37,5 % more stuff to orgit than regular rocket. Then I am able to even increase the theorethical delta-v of the 100 000 s ISP of the MPDT engine. At half of that 830 km/s speed I am travelling at 420 km/s ( added orbital speed ) and trip to Xenon rich Jupiter would only take 16 days....and if it was possible to harvest Xenon on a flyby of Jupiter and I pushed the metal to the pedal I would reach Jupiter is just 8 days for "refueling".

    At any rate I would no reject the MPDT drive at this stage. I still have the planetary acceleration in my sleeve.
    Attached Images Attached Images  
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  28. #28
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    This here to display how systems are converted to serve new functions once in space.

    Lander will be removed under the belly ( fuselage has hinges to do this ) serves as extra room and escape pod.

    Solar arrays housing will be the beds for 4 people ( yes this is a 4 astronaut ship ).
    Attached Images Attached Images  
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  29. #29
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    Systems explained and 10% increase in size.
    Attached Images Attached Images  
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

  30. #30
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    Comparison with Skylon.

    Solid rocket boosters have 11 x more density than the pure LH2/LOX engine. I think that explains the size difference.
    Attached Images Attached Images  
    If it looks good, it will fly good !
    -Bill Lear & Marcel Dassault


    http://max3fan.blogspot.com/

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