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Messages - ApolloGirl

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General Discussion / menu text size
« on: March 09, 2018, 11:33:17 PM »
In case we didn't already mention, the menu text size in the Steam game is adjustable. If the text is too small just Ctrl and mouse scroll up to zoom in and increase text size.
And to increase the control window size, just drag on the bottom-right corner of the window to adjust accordingly.

General Discussion / Re: Release for Mac
« on: March 06, 2018, 11:15:58 PM »
Hi there

Yes we will be releasing for MAC in the coming weeks. The first MAC release won't have any major changes from the current pc version so it's a matter of finishing up the admin work and approval process and getting it out there.

Thanks for your patience!

« on: February 27, 2018, 09:15:59 AM »
As the Steam version is much more detailed, the launch procedure is slightly different. For the Steam version we recommend using the auto checklist option to run through the missions.

Use the CHECKLIST tab to select the corresponding checklist for your mission, then hit the AUTO button to run through the checklist automatically.

Here is the guide on Steam:

General Discussion / Re: STEAM for PC is LIVE!
« on: February 27, 2018, 08:43:34 AM »
Hi Machala,

Those of you with the beta key have the retail version. We synced the two versions just before release to ensure that the beta and retail versions were the same to avoid confusion.

So no need to get it again :)

General Discussion / STEAM for PC is LIVE!
« on: February 26, 2018, 12:45:18 PM »
Hi everyone,

Space Simulator is now available for PC on Steam in Early Access. The game is available at a discounted price for a limited time:

Thank you all again for your patience and support!

General Discussion / steam release next Monday
« on: February 25, 2018, 11:39:24 AM »
I'm happy to announce that we'll be releasing Space Simulator for PC for Early Access on Steam Monday 25 Feb 2018. The game will be available at a discounted rate for a limited amount of time.

Thank you all for your patience and we hope to hear positive feedback!

General Discussion / programmers that put man on the moon
« on: February 20, 2018, 10:27:47 PM »
Much of the ground work of putting man on the moon was done by a bunch of young ambitious programmers that worked round the clock to meet NASA's impossible deadlines. The software running on the simulators was key to the success of the missions as every maneuver carried out onboard was calculated in advance by IBM computers in the Real-Time Computer Complex at Johnson Space Center. 

These are some of the programmers that helped achieve NASA's missions:

Development news / Re: Steam Release Date
« on: February 18, 2018, 03:59:23 PM »
Hi peteduggan35,

The release date on Steam is set to Feb 2018 so we will stick to that. Indeed we are not making any major changes at this stage of the process. We are currently just waiting on a few administrative decisions to come through. We will launch before the end the month for PC and then followed by MAC.

Thank you all for your patience!

General Discussion / SpaceX Falcon Heavy flight
« on: February 14, 2018, 08:48:25 PM »
The Falcon Heavy successfully launched for the first from Cape Canaveral on 6 February sending Musk's Tesla into orbit towards Mars. The flight proved successful in many ways. Two boosters returned to Earth. The Falcon Heavy is now the most powerful rocket able to lift  141,000 lb of payload. Only the Saturn V has delivered more payload into space. We are now one step closer to more affordable spaceflight.

General Discussion / barbecue roll
« on: December 17, 2017, 07:00:23 PM »
The Passive Thermal Control maneuver, aka the barbecue roll, is a maneuver used by the Apollo spacecraft on its coast to the Moon. The CSM rotates along its x-axis (along the length of the body) of about one revolution per 10 minutes or slower. The in order to disperse heat from the Sun and heat up the spacecraft evenly.  

Active torquing was required to maintain the desired attitude because the moment of inertia principal axes were not precisely aligned with the spacecraft axes. This was accomplished by using the rotational hand controller to create a pure torque about the roll axis, instead of using the active attitude control mode.

This maneuver was first successfully tested in Apollo 7.
In Apollo 13, the crew performed a barbecue roll before powering down the spacecraft to avoid further thermal damage to the ship. 

General Discussion / Saturn V fuel vapor
« on: December 14, 2017, 08:10:08 AM »
Ever wondered was that steam coming out of the side of the Saturn V rocket is? If you look closely, you'll see vapor steaming out of the top of the fuel tanks hours prior to launch.

All the three stages of the Saturn V use liquid oxygen (LOX) as oxidizer. The LOX is kept liquid at about -183 degrees Celsius. To main this temperature it continuously boils off and is replenished through the fill and drain line between loading and prepressurization.

General Discussion / Early Access roadmap ahead
« on: December 11, 2017, 09:48:29 AM »
As many of you already know Space Simulator is coming soon to Steam Early Access. We plan to roll out the game in various stages through Early Access. 

Initial launch will include a detailed Apollo 8 mission. This includes launch, translunar injection, lunar orbits and return to Earth.

In the following months we plan to finish work on the Lunar Module to release Apollo 9, which was the first mission with the LM, then Apollo 10 and 11, etc. in successive months. 

Once all the Apollo missions are in place we'll start implementing the Steam Space Shuttle missions. This will likely be 6-12 months down the track from now.

Of course, if time permits we will enable VR to make this a truly immersive experience.

General Discussion / apollo 8 earthrise
« on: December 11, 2017, 09:32:26 AM »
Many of us know that famous earthrise image showing a profound contrast between the gray of the Moon and blue of the Earth and the dark of space.

Although entrenched in the popular imagination, this image was in fact not the first photograph ever to be taken of the Earth by a human. 

The first ever picture taken of the Earth rising from the Moon was taken a minute before the above iconic image, but in black and white.

As Apollo 8 circled the Moon for the fourth time, LM pilot Bill Anders spots the Earth coming over the Moon's western horizon through window 5. Interestingly, the crew saw the horizon of the Moon running down vertically. The gap between the Earth and the horizon is much smaller than in the later pictures. 

Facing us is the Atlantic Ocean with the terminator running between South America and Western Africa.

Soon realizing the opportunity at hand, Anders quickly geared up a color roll to take that famous image through the rendezvous window.

General Discussion / Re: Skylab,mobile question
« on: December 03, 2017, 05:58:32 AM »
Skylab is scheduled for next mobile update. Steam Early Access is to feature detailed Apollo 8 mission - launch, TLI, lunar orbit and return.

General Discussion / IMU, REFSMMAT and P52
« on: November 29, 2017, 06:49:53 PM »
A very brief intro of these essential concepts of the Apollo Guidance and Navigation system.
The attitude (orientation) of the Apollo spacecraft was measured by the inertial measurement unit (IMU). The IMU was a set of three nested gimbals that supported a platform at the center. The three gimbals separated the platform from the spacecraft so that the orientation of the platform remained the same while the spacecraft moved around it. The spacecraft's attitude could be calculated relative to the platform's orientation.

The IMU measurements only make sense if we know which way the platform was oriented in space. Here is where the REFSMMAT comes in. A REFSMMAT (reference to a stable member matrix) is a way to express orientationis. It is a set of numbers that describe the orientation of the IMU platform. Since the spacecraft moves substantially with respect to the Earth and Moon, an inertial reference is used. The REFSMMAT is defined with respect to the stars. 

The IMU drifted out of alignment with the REFSMMAT over time. Periodically, and prior to burns, the platform had to be realigned. This realignment is called a P52. A P52 is performed by sighting two stars with a sextant. The computer compares the star's actual position with where it thinks it should be to calculate the amount the platform has drifted.

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