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User: EMUPhysics

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  1. Re:There is another option on Can the Ares Program Be Salvaged? · · Score: 1

    Although to be fair the Falcon 9 will use 9 Merlin engines and will not have enough thrust to lift the Orion CM/SM combo. It would require the Falcon 9 Heavy which would use 27 Merlin engines. That is a lot of points of potential failures.

  2. Re:There is another option on Can the Ares Program Be Salvaged? · · Score: 1

    NASA also had a nearly unlimited budget, post-1963, to get the job done. Modeling still can only go so far, you still have to go ahead and build it.

  3. Re:There is another option on Can the Ares Program Be Salvaged? · · Score: 1

    The problem lies in the size of the Altair lander that NASA wants to use not just for simple landing but long duration stays. It is significantly larger then the Apollo lunar lander. It would take a colossal rocket to launch the mission in one rocket. We are also much further along orbital rendezvous then they were in the '60s, the Progress spacecraft can automatically dock with ISS.

  4. Re:There is another option on Can the Ares Program Be Salvaged? · · Score: 1

    SRBs are more efficient, the RD-171 burns kerosene not liquid hydrogen so it takes more propellant. Plus it would take four of them on the first stage. Now you are talking about a stage the size of the first stage of the Saturn V. The first stage of the Saturn V weighed just over 5,000,000 lbs versus the the 2,600,000 lbs for the SRBs combined.

  5. Re:There is another option on Can the Ares Program Be Salvaged? · · Score: 2, Insightful

    The SRBs have been redesigned since Challenger which is why there hasn't been another accident related to the Solid Rockets Boosters. If you remove the SRBs then you will have to design a whole new engine, in the class of the Apollo era F-1s since each SRB puts out the equivalent thrust of almost TWO F-1 rocket engines each.

  6. There is another option on Can the Ares Program Be Salvaged? · · Score: 3, Insightful

    http://www.directlauncher.com/

    http://en.wikipedia.org/wiki/Direct_Launch_Vehicle

    The DIRECT system is a better option:
    1) Most of the hardware is man-rated; unlike Ares

    2) NASA does not have to retool manufacturing; unlike with Ares

    3)Can be ready sooner with heavy lifting as an option

    Why NASA is completely dug in on Ares is mind boggling. Orion, the capsule, is a go no matter what.

    Also, the contractors won't really be affected: ATK would still make the SRBs, Lockmart would still manufacture the capsule, and Boeing would get it's money from being part of United Space Allaince.

  7. Re:This only works at night? on HAARP Amping It Up · · Score: 1

    No it works during the day. All three sets of my experiments run there have been run during the day.

  8. Re:HAARP is a weapon? on First Artificial Aurora May Lead to Night Sky Ads · · Score: 1

    They just upgraded the site so knows? I have seen vids about artifical aurora generated by HAARP from years ago

  9. Re:Perverse. on First Artificial Aurora May Lead to Night Sky Ads · · Score: 1

    The HAARP site is in the middle of nowhere. It is on the site of what was going to be an Over-the-Horizon Radar site, but the Cold War ended.

  10. Truth on First Artificial Aurora May Lead to Night Sky Ads · · Score: 1

    There are multiple sites around the world like this. HAARP is based in Alaska. The other sites are in Norway, Russia, and, once it is reconstructed, there will be one at Arecibo. (The other one was on the other side of Puetro Rico but was destroyed by a hurricane in the mid '90s). UCLA also has a site near Fairbanks. I personally have been to both HIPAS and HAARP.

  11. Re:Watch the Tigers ??? on Major League Baseball Releases Webcasting Plans · · Score: 2, Interesting

    The toughest part about watching Tigers game is knowing that the payroll from last year opening day was about $55,000,000. The Red Wings, the greatest team on the planet, has a payroll of $66,085,756 (as of Feb 14th). Hopefully Tram can turn things around.