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Thread: The space flight thread

  1. #51
    Verified VCDS User vreihen's Avatar
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    Quote Originally Posted by Uwe View Post
    The Minotaur-C is a strange contraption! 4 stages, all solid fuel, meaning they can't be throttled, and once you light one, it burns until it's out of fuel. I wonder how the heck such a system achieves the precision needed for successful orbital insertion?
    If I recall correctly, it was intended for air launch of small LEO packages from a carrier plane. They have to add a stage (Stage Zero) to the flight stack to launch it from a pad on the ground.

    Did you catch the drama from CapCom when they experienced the unexpected loss of telemetry late in the ascent? It sounded like they were working it as a loss-of-vehicle (because SpaceX has trademarked rapid disassembly event) until the signal returned.....

  2. #52
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by vreihen View Post
    If I recall correctly, it was intended for air launch of small LEO packages from a carrier plane. They have to add a stage (Stage Zero) to the flight stack to launch it from a pad on the ground.
    Right, but that sheds no light at all on how the achieve the precision needed for orbital insertion. Launching from a plane, they have control over speed and altitude of "stage 0", but with 4 solid-fuel stages...

    Quote Originally Posted by vreihen View Post
    Did you catch the drama from CapCom when they experienced the unexpected loss of telemetry late in the ascent? It sounded like they were working it as a loss-of-vehicle (because SpaceX has trademarked rapid disassembly event) until the signal returned.....
    Yes! My initial reaction was: "Well, I guess they had another fail.."

    Minotaur-C: $50 million launch cost, 1,320 kg to LEO.

    Falcon-9: $62 million launch cost, 22,800 kg to LEO (although that seems to be in fully expendable mode and I can't find payload numbers when the first stage is recovered).

    It seems to me that the latter is a far better value than the former, and the only reason to use the former us to keep the old-line defense contractors in business.
    Ceterum censeo, delenda est Daesh.

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  4. #53
    Verified VCDS User vreihen's Avatar
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    They can launch 21,480 kg more? That's a whole lotta CubeSat (the 21st century's GAS Can) space.....

  5. #54
    Verified VCDS User vreihen's Avatar
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    Quote Originally Posted by vreihen View Post
    They can launch 21,480 kg more? That's a whole lotta CubeSat (the 21st century's GAS Can) space.....
    Finally, an idea for a Kickstarter campaign that I would actually invest in.....

    http://www.newsweek.com/astrocat-fel...-statue-706613

    ASTROCAT FÉLICETTE: ONLY CAT TO GO TO SPACE MAY SOON BE HONORED WITH 5-FOOT BRONZE STATUE IN FRANCE

    BY KRISTIN HUGO
    11/9/17 AT 10:33 AM

    Unlike her canine and simian counterparts, the world’s only feline astronaut does not have any lasting commemoration or grave site.

    A Kickstarter campaign seeks to change that by planning a 5-foot-tall bronze statue, hopefully to be erected in the cat’s hometown of Paris.

    If successfully funded, a British creative director named Matthew Serge Guy plans to use the crowdfunded money to commission a sculptor to design and build a memorial to a black and white cat who launched into space in 1963. Guy mentions the unfortunate lack of memorials for the former stray, named Félicette, and how that needs to change.



    Félicette, the first and only cat who went to space, was weightless for 5 minutes.

    VIA MATTHEW SERGE GUY'S KICKSTARTER CAMPAIGN

    While the first dog in space, Laika, has a statue, and the first chimp, Ham, has a memorial, Félicette has close to nothing. There are some commemorative stamps honoring a mythical space cat “Felix.” But Felix's portrait doesn’t look like Félicette and it has a male name, so this is not enough for Guy. If anything, he says, the stamps simply help erase the existence of female astronauts.

    The French space program gathered 14 cats, implanted electrodes into their brains, and put them through training similar to the way that they train human astronauts. They ultimately chose Félicette to make the trip, either because of her docile personality, or because she had not put on too much weight, according to differing accounts.



    Felix, a long-haired cat with different markings than Félicette, gets the credit for going to space on these commemorative stamps.

    She was launched into space from Algeria, and made it nearly 100 miles above Earth. For five minutes, she was weightless.

    Félicette came back to Earth unharmed, parachuting down and being retrieved only 13 minutes after having left her home planet. She stayed at the program’s lab for two to three months, according to Guy, but scientists later killed her to study the effects of space travel on her body.

    Kickstarter is not a platform for charities, but for creative projects with specific products that need a minimum amount of funding in order to get off the ground. “AstroCat” needs at least £40,000 (or USD$52,501) to pay for the creation of the statue and the fulfillment of the backer rewards. In addition to contributing to the creation of the cat statue, backers who contribute enough will also get space swag, from photocopies of a commemorative Félicette postcard, to their name on a plaque on the statue.

    The way all-or-nothing funding works on Kickstarter means that the project will only receive the contributed funds if the minimum goal is met. If not enough funds are contributed, then the backers will never have their credit cards charged, they will not receive the rewards, and the project will not receive funding.

    As of this writing, there is one week left in the campaign and it is less than halfway to the minimum, at £18,562 (or USD$24,608.) You can contribute only before November 17, 2017 here.

  6. #55
    Benevolent Dictator Uwe's Avatar
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    scientists later killed her to study the effects of space travel on her body.
    Heartless bastards.
    Ceterum censeo, delenda est Daesh.

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  8. #56
    Verified VCDS User vreihen's Avatar
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