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Picture a vehicle shaped like a short stack of poker chips. The docks are at the top and bottom of the stack. You were right about the normal vectors. Using Mesh Wizard, I could see that they were all pointing inboard. I changed them all to point outboard, and now they work fine :tiphat:

I'm looking at the docks in Mesh Wizard - how should they be aligned? I see that the rotation vector is pointed to Y+ on the mesh, and that the normal vectors both point to Z+.

When these vehicles undock, they interpenetrate instead of moving away, and I can't figure out how to fix it. Parent vehicle dock list: BEGIN_DOCKLIST 0 0 -4.046 0 0 1 0 1 0 588 ; aft attach point for booster 0 in cfg 1 in sim 0 0 5.29 0 0 -1 0 1 0 588 ; visiting vehicle docking port 1...

Search for that file name online - Microsoft has an update that addresses the issue. The fix depends on what OS you're using, but basically it's missing a file in your system.

Possible Update? I love your Falcon Heavy! A question: The SpaceX Falcon Heavy page now shows liftoff thrust at around 20,400kN, while your version is at about 17,600kN. Second stage thrust is 934kN, compared to 801kN. The gross weights look pretty close, so it doesn't appear that the fuel...

I figured you'd get around to that sooner or later, which is why I only asked about qualifications for a developer, not for anyone on this forum to actually help. You (the forum's admin and a few regulars) have amply demonstrated that you aren't interested in anything except dumping on people...

Wow, that's really nice! I know the tools and resources are out there - it'd be great to have someone who actually knows what they are doing to help set up our test scenarios.

Please forgive my reluctance to discuss what we are doing in detail - my partner and I have been burnt before by attempting to work with people we weren't able to meet in person. My intent is to find someone in central or north Texas, where we can meet face-to-face to discuss what we are working...

Well, right now it's just "two guys with an idea" that we've been working on for a few years now. We could come up with a modest budget, but we'd need to scope the project to know how many work hours would be needed.

I am working on a project that would benefit from virtual prototyping in Orbiter, and I don't have the programming skills to develop the needed addons. I have the models (and an excellent modeler), the scenarios I want to simulate, but not the programming part. If I were to approach someone...

The ability to land a tail sitter would solve some other problems for me, too :-) JR

I don't have access to Orbiter at the moment, but it does have a spacecraft (the name escapes me) that is designed to handle cargo and such in orbit. As an aside, one of the major issues with orbital debris removal is that each object is in its own orbit, requiring the chasing spacecraft to...

** What I desperately need help with at the moment is translating my SC3 scenario into a DLL that will work with Glider's SpaceX addon (and yes, he's most graciously given me permission to use his models). I used a DLL translation program on the SC3 files, but I can't get the two vessels...

When I get the chance to talk to the experts, I have the research in hand to at least document that the proposal is feasible. Further, I do plan to have an engineering study done by a reputable firm at the earliest opportunity. We're painfully aware of the website's shortcomings, and your...

What questions, sir, have you asked me? There is a written record of this entire conversation - feel free to go back and point out a single question you've asked about what I actually have in mind. All you've done is bash the website and indulge in speculation based on what you *think* you know...

I'm not asking anyone to do anything for *me*. I'm asking for someone to consider what this project could mean for us all, and, if it's still worthwhile in their eyes, join in and help. If you don't see any value in it, and you don't want to actually talk with me to learn the details, then, for...

For the record, the PERMANENT website isn't mine - it belongs to a friend who has invested a lot of time, money, and effort into putting forth the idea that we should start commercial ventures in space. Yes, it's old, and yes, it needs to be updated, and no, he has no interest in scamming anyone...

I would agree, up to the point where I realized everyone was sitting back waiting for someone else to do it. NASA won't do it, the aerospace industry won't do it, and the universities won't do it - each for their own reasons. PERMANENT is a registered non-profit organization dedicated to opening...

I'm part of a volunteer grassroots effort to fly an unmanned prospecting mission to the lunar north pole. I am putting together a video to publicize the mission, but I'm not a programmer or a graphics artist. I'd like to develop a improved Orbiter scenario (over my own version) to illustrate...

I found the answer to the question about C3. A C3 value of zero is escape velocity from Earth's gravitational influence. A translunar injection trajectory is therefore less than zero. The Apollo missions had a C3 of -1.8km^2/sec^2. A Mars trajectory would carry a positive C3 value. Hope this...