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First Flight on Mars!

Discussion in 'Bad Dog Cafe' started by maxvintage, Apr 19, 2021.

  1. maxvintage

    maxvintage Poster Extraordinaire

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    Well they pulled it off--the little helicopter that the perseverance rover brought to mars made its first brief flight. They have video of it on Twitter but I can't figure out how to post it yet
    https://twitter.com/NASA/status/1384098512984363014?s=20

    It went up about ten feet, hovered, and landed safely

    They actually have low frame rate video of it in the Martian "air"


    Amazing
     
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  2. uriah1

    uriah1 Telefied Gold Supporter

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    Was curious how that would work since there is no or limited atomosphere for lift.

    No pics from helicopter yet..?
     
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  3. Jipes

    Jipes Tele-Meister

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    Amazing now that opens up the possibility to send it around to shoot more pictures
     
  4. thunderbyrd

    thunderbyrd Poster Extraordinaire Silver Supporter

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    yes, i don't understand this either. but i'm glad they pulled it off.
     
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  5. Bluey

    Bluey Tele-Meister

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    Thought the same being helicopters need air for lift. Like swimming in space I thought.
     
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  6. Telekarster

    Telekarster Tele-Afflicted

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  7. maxvintage

    maxvintage Poster Extraordinaire

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    The helicopter took a picture of its shadow from the air

    Apparently there is enough atmosphere to generate enough lift to get a four pound device into the air. It has two rotors and rotates I think four times as fast as it would have to rotate on earth. Lower gravity helps.

    It's mostly "proof of concept" at this point I think, although it can scout ahead of the rover, which moves very slowly, and suggest places to visit
     
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  8. Telekarster

    Telekarster Tele-Afflicted

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    I don't quite understand it either but I think, maybe, it has something to do with the duel rotors creating their own lift by compressing what limited atomosphere they have between them? Not sure but prob something like that I'd guess...
     
  9. Seasicksailor

    Seasicksailor Friend of Leo's

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    Clearly they didn't!! Obvious evidence that the whole thing is staged and a giant conspiracy! I'm sure Kubrick was involved!!

    PS Just for the record... kidding! :p
     
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  10. John Backlund

    John Backlund Poster Extraordinaire Gold Supporter

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    So......they can start delivering pizzas with it then?
     
  11. GunsOfBrixton

    GunsOfBrixton Tele-Afflicted

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    Cool stuff.

    The rotors spin at over 2000 rpm, enough.to generate lift on Mars. On Earth, helicopter rotors only need to spin about 500 rpm to produce lift / flight.
     
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  12. Guitarteach

    Guitarteach Doctor of Teleocity

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    Low gravity assists (0.38g) and they spin the blades much much faster.
     
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  13. bgmacaw

    bgmacaw Poster Extraordinaire

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  14. trapdoor2

    trapdoor2 Friend of Leo's Gold Supporter

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    You can think of producing lift as a Newtonian action/reaction. The blades hit atmospheric molecules and the reaction moves the helicopter. The density of the Martian atmosphere is known, so they just did the math to scale flight from the Earth version to Mars.

    Not exactly that simple...but close.
     
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  15. Ironwolf

    Ironwolf Poster Extraordinaire Gold Supporter

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    Mars has an atmosphere. It is just very thin. About 1% of earth's pressure at the ground.
     
    Last edited: Apr 19, 2021
  16. Dan German

    Dan German Doctor of Teleocity

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    And it has a piece of fabric from the Wright Flyer. This is nearly as cool as the first moon landing, but the world is too bored with everything to get that.

    Well, the world can just get off my lawn.
     
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  17. tweeet

    tweeet Tele-Afflicted

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    I love it....great achievement. Back to the Moon in 3 years too :)
     
  18. hemingway

    hemingway Poster Extraordinaire

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    I've tried.

    I've really tried to care what happens when big rocks fly past other rocks in the sky.

    I know there are a lot of them, and that some are really big. And they fly past each other.

    I've tried to understand why we want to send golf buggies and drones to these rocks at the cost of kersquoopians of our earth pounds/dollars.

    But I don't.

    I don't care.

    I'm not angry about it.

    I just don't care.
     
  19. dented

    dented Doctor of Teleocity

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    I was just watching that! Very cool achievement.
     
  20. getbent

    getbent Telefied Silver Supporter

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    thats it. I'm gettin a drone.
     
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