Announcement

Collapse
No announcement yet.

XCOR rocket plane in record books

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • XCOR rocket plane in record books

    The Rutan family strikes again....this time Burts brother Dick;

    MOJAVE, California ñ XCOR's EZ-Rocket flew into the history books today. The craft made a record-setting point-to-point flight, departing here from the Mojave California Spaceport, gliding to a touchdown at a neighboring airport in California City.


    MOJAVE, California –

    XCOR's EZ-Rocket flew into the history books today. The craft made a record-setting point-to-point flight, departing here from the Mojave California Spaceport, gliding to a touchdown at a neighboring airport in California City.

    The rocket plane was piloted by Dick Rutan, no stranger to milestone-making voyages. In 1986, Rutan was co-pilot on the Voyager airplane that made the first nonstop, around-the-world flight without refueling.

    The EZ-Rocket is a modified Long-EZ homebuilt aircraft. The vehicle is propelled by twin 400-pound thrust, regeneratively cooled rocket engines and fueled by isopropyl alcohol and liquid oxygen.

    The EZ-Rocket is able to stop and restart its engines in mid-flight, as well as perform rocket-powered touch-and-goes on a runway.

    Down and safe

    With Rutan at the controls, the EZ-Rocket lifted off at 11:40 a.m. local time. The craft touched down at the California City airport – about 10 miles northeast of Mojave – some nine minutes later.

    Stashed onboard the EZ-Rocket were four pouches of mail, a bill with a check attached, letters from around the world, and other items.

    "He's down and safe," said Jeff Greason, XCOR's chief executive officer.
    Dr. Mordrid
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  • #2
    How was that record-setting?

    Comment


    • #3
      Rtfa
      Gigabyte P35-DS3L with a Q6600, 2GB Kingston HyperX (after *3* bad pairs of Crucial Ballistix 1066), Galaxy 8800GT 512MB, SB X-Fi, some drives, and a Dell 2005fpw. Running WinXP.

      Comment


      • #4
        Yes, and so what? Ever heard about Me163 for example?

        Comment


        • #5
          ME-163 Komet had a total power on in combat of 5 minutes. It could not start-shutdown-restart and it could not take off without strap-on rocket assists. XCOR flew for 9 minutes, took off under its own power, could do touch and go and had restart capability.

          XCOR also used a binary fuel (isopropyl alcohol and LOX) while the ME-163 used hydrogan peroxide only, which was passed over a catalyst to dissociate it into hydrogen and oxygen in a very rudimentary engine.

          Dr. Mordrid
          Dr. Mordrid
          ----------------------------
          An elephant is a mouse built to government specifications.

          I carry a gun because I can't throw a rock 1,250 fps

          Comment


          • #6
            It always started on its own, had throttled engine (why you would want to stop engine in normal flight at all, except publicity stunt?). Also, its engine worked more like for 7 minutes. While still shorter, don't forget that Me163 was the fastest plane of WW2, closely approaching 1000 km/h in levelled fligh. Its "stated" combat range was 40km, and even that is more than 10 miles. Moreover, one can assume that total range for Komet was something around 90km.

            Also, only A version of Me163 used "decomposing" rocket engine (still - definatelly a rocket engine), the B version burned its fuel.

            Before you point out one thing that Komet normally couldn't do (beeing that way mostly of Komet's glider heritage...) - from the site it seems that the record wasn't about landing mid-flight

            I'm not surprised that Rutan and US press wants to make this as big publicity stunt as possible, I'm surprised that you've got tricked so easily...

            Don't get me wrong, Rutan does some amazing stuff. IMO Long Ez itself is among it, and playing in such desing with rocekt engine is at least neat. But it's not extraordinary/spectacular/record-braking. Not everything what Rutan does is...
            Last edited by Nowhere; 4 December 2005, 09:32.

            Comment


            • #7
              I thought the Komet used a hypergolic monopropellant mixed in the tank: T-Stoff (Hydrogen Peroxide) C-Stoff (Hydrazine/Methanol). Nice stuff...the Komets had a nasty habit of exploding if any oxygen was introduced into the tanks as they ran dry.

              IIRC the Komet used Nitrogen as a tank pressurizer, but sometimes the groundcrews would have to use compressed air instead - sometimes it worked, sometimes they burned..
              Hey, Donny! We got us a German who wants to die for his country... Oblige him. - Lt. Aldo Raine

              Comment


              • #8
                OK, so what's next? In the earlier article, they say this is 3 generations out of date.

                What are the plans for rocket-powered planes?
                FT.

                Comment

                Working...
                X