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ORBITER-FORUM will be temporarily closed at 2026-07-23 18:00 UTC while we complete some OF maintenance tasks. The amount of downtime is expected to take up to one hour, but probably less.
Back in August/September, @n72.75 posted about some significant improvements to our Skylab support. As some of you might have guessed or heard, these changes did not come out of nowhere. It was around that time that we learned there was a PGNCS system on display in the New Mexico Museum of Space...
(Un)fortunately no -- we know for a fact that almost all of the PGNCS hardware, including the AGCs, was removed from (almost?) all of the CMs after flight. There may be some exceptions like Apollo 11, but we have definite proof that the Apollo 12, Apollo 13, Apollo 14, Apollo 15, and Skylab-2...
Thanks! 😄 I've got rope readers built up and working for both Block I and Block II, and am up to 25 modules safely dumped between them. There are a couple more particularly exciting sets of modules that I'm working on scheduling reads for (stay tuned) -- but if anybody has any leads on rope...
@Zuppermati We also have a closely related document for Apollo 11 that might be interesting to you: Spacecraft Operations for SV Countdown/Countdown Demonstration, Released for SC 107. This is the equivalent countdown procedure for the CSM instead of the Saturn V.
Apologies for the delay! We added the document to the VirtualAGC website today: FO-K-0007V1-SC107 Spacecraft Operations for SV Countdown/Countdown Demonstration
Yes, I'm not disagreeing that it can appear that way on camera (as you can see in the first picture I posted). I'm just saying that when you see the screen in person, it does not look that green, at least in the lighting conditions in which I've seen it.
It's very difficult to pin down the color -- it's not quite like anything I've seen before. To try to convey that a bit, both of these pictures were taken of the exact same panel, but with different cameras and under different lighting conditions:
I will say that to my eyes, I've never seen it...
I'm trying to get the Orbiter Beta installed, but I'm having trouble with the subversion repository. When I try to checkout svn://orbiter-forum.com/orbiter, I get the message "No connection could be made because the target machine actively refused it."
Is the SVN down? Or has it moved, or am I...
Hi! Unfortunately, the hardware sections of "Apollo Guidance Computer: Architecture and Operation" are somewhat lacking, and filled with little errors and inaccuracies like these. In general I wouldn't recommend studying it too closely, or trusting what it says, if you're really trying to learn...
Hey Mikael, welcome to the Orbiter forum! Sorry we didn't get back to you quickly here; since this was your first post it was awaiting moderator approval where the people that know what they're talking about couldn't see it. :lol:
For anybody reading this in the future, Mikael popped into our...
The NASSP dev team is spread around the world, so generally speaking at least one of us will be probably awake and active in the channel (depending on where you're located). The channel is most active from ~14:00 GMT to ~22:00 GMT. Between ~22:00 GMT and ~6:00 GMT it is normally just me, and I...
Hi all! I'm a developer on the VirtualAGC team, and help the NASSP developers out with AGC/AGS-related things here and there. The NASSP development forums are officially relocating here soon, so I thought I would say hello! :)
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