Recent content by aftercolumbia

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    Tutorial A cue-sheet based general approach to atmospheric entry

    Thorsten, welcome to Orbiter. Your name rings a bell, but I can't figure out why. Your formula is a basically the same as mine, which is the simplification where v_end = 0 Yours: d = v0 * (v0-v_end)/a - (v0 - v_end)^2/(2*a) Mine: d = v0^2/(2*a) I plug that into my Advanced DAL EL-520W...
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    OHM SpaceX launch vehicles and Dragon

    So, for my first flight, my recorder crashed, meh. Left it after the first stage. For my second flight, I wanted to configure my AerobrakeMFD before launch. AerobrakeMFD is selected using Shift-E. See where this is going yet? Stay tuned, it'll be on Youtube in a couple of days!
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    Challenge Shuttle-A Ascent

    Ah, the forward hover tailstand (which I haven't tried deliberately because of high angular rates; the one time I did it by accident, I was flat on my back faster than I would be in a boxing ring.) The reason I don't think it works as well is because it probably saves quite a bit of propellant...
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    Idea planets acting as universes

    It sounds like you might be looking for Celestia... http://shatters.net/celestia/ It's a lot easier to fly in ... mostly because it is a universe viewer, not a spaceflight simulator. I had lots of fun in it, but being of the engineering bent, I got bored of it fast.
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    OHM UCGO Satellite

    I want to try this add-on! I once had my laptop go to sleep during a really standard DG entry over Earth. When it woke up, I was already outside the orbit of Jupiter :rofl: I do know that the Moon has a relatively weak mu, which makes it hard to stabilize orbits around him. In real-life, he...
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    OHM Trajectory Optimization Tool v2.1

    Hi, all I want to let you guys know there is a naif0010.tls file due to a new leap second introduced for July 1 of this year. All of the SPICEy trajectory planners i can find at www.orbithangar.com are still using naif0009.tls. (I want to install it in my thermostat, lol. I live in a no-DST...
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    OHM Gliese 876 system v-0.9

    I haven't downloaded/installed it yet, but I was wondering, do you actually place it the 15.3ly away? If so, it would be one major pain in the backside to get to. I'm thinking it it could be fun to "dockskip" my way there, but that would largely be luck of the draw, as the launch vector has a...
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    OHM Trajectory Optimization Tool v2.1 - No MATLAB Compiler Runtime

    Waypoint list in "Flight Plan" under "Simulation Options" does not show columns for "Departure Transfer Type" or "Revolutions Before Arrival", and the "Body" column (depicted in manual) is labeled as "Waypoint Body" (otherwise behaves as expected.) Resizing the "Waypoint Body" column reveals...
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    Flight Question Banking Entry

    I don't think anyone models skin temperatures in Orbiter with much accuracy, and also, the real issue with the Shuttle's necessarily high alpha is wing and drag loading. The shockwave standoff distance is mostly a function of how round the object is, and this is part of the reason why wing...
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    Flight Question Banking Entry

    I've seen a lot of "How do I enter and land?" and I'm a little surprised at the paucity of information on bank-controlled lifting entries. Almost all entry tutorials I've come across are alpha modulated and nearly ballistic, which is not normal for real spacecraft, and IMHO, quite difficult to...
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    Challenge Shuttle-A Ascent

    http://youtu.be/ioebMyVY5tM (will be up sometime Monday (120220) morning.) The challenge is to launch from Havana (a standard scenario in the base package) and achieve an orbit with a periapsis over 200km with the maximum amount of fuel left over. On this flight, it was 18383kg left, my...
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    Challenge Safe Lithobraking

    I've landed the Delta Glider on the moon with nothing but the RCS, but the touchdown speed was just under 1500m/s, so it is obviously not realistic. On Mars, I was a lot less dead with a 650m/s landing, but of course, heaven and hell don't care if you're a little dead or really super dead, yer...
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