Board index FlightGear Development Spaceflight

Space Shuttle - Flight

Discussion about development and usage of spacecraft

Space Shuttle - Flight

Postby Thorsten » Tue Dec 04, 2018 8:23 am

Use this thread to discuss mission scenarios, to share advice how to do certain maneuvers or share your experiences in space.
Thorsten
 
Posts: 10156
Joined: Mon Nov 02, 2009 8:33 am

Re: Space Shuttle - Flight

Postby GinGin » Tue Dec 04, 2018 5:30 pm

A compilation of Space stories and videos so far:



Videos

Launch Video with real voices
https://forum.flightgear.org/viewtopic.php?f=19&t=35009



Landing Video with real voices
https://forum.flightgear.org/viewtopic.php?f=19&t=35001




General Stories

Shuttle Approaches contest
https://forum.flightgear.org/viewtopic.php?f=19&t=32790




EatDirt Stories:


The Van Allen Mission
https://forum.flightgear.org/viewtopic.php?f=19&t=35011


On Orbit TimeLapse
https://forum.flightgear.org/viewtopic.php?f=19&t=35234





Thorsten Stories


Meeting ISS
https://forum.flightgear.org/viewtopic.php?f=19&t=35276




GinGin Stories



From Ground to Orbit
https://forum.flightgear.org/viewtopic.php?f=19&t=32851



From Orbit to Ground
https://forum.flightgear.org/viewtopic.php?f=19&t=33167



Return to Launch Site
https://forum.flightgear.org/viewtopic.php?f=19&t=33030




Transoceanic Abort Landing in Zaragoza
https://forum.flightgear.org/viewtopic.php?f=19&t=33368





Abort Once Around
https://forum.flightgear.org/viewtopic.php?f=19&t=34315




Contingency Abort: Landing in Bermuda
https://forum.flightgear.org/viewtopic.php?f=19&t=34254




Contigency Abort: East Coast Abort Landing
https://forum.flightgear.org/viewtopic.php?f=19&t=34969




Electrical failure and TAL
https://forum.flightgear.org/viewtopic.php?f=19&t=34810



Impending Loss of Hydraulics and AOA
https://forum.flightgear.org/viewtopic.php?f=19&t=35048





Fictionnal Mission into Polar Orbit from Vandenberg
https://forum.flightgear.org/viewtopic.php?f=19&t=34700




Deorbit and Landing in Easter Island
https://forum.flightgear.org/viewtopic.php?f=19&t=34229
Last edited by GinGin on Tue Jan 22, 2019 1:34 pm, edited 1 time in total.
GinGin
 
Posts: 471
Joined: Wed Jul 05, 2017 10:41 am
Location: Paris
Callsign: Gingin

Re: Space Shuttle - Flight

Postby wlbragg » Wed Dec 05, 2018 5:59 pm

Wow, thank you for doing this!
Kansas(2-27-15)/Ohio/Midwest scenery development.
KEQA (2-27-15), 3AU, KRCP Airport Layout
User avatar
wlbragg
 
Posts: 4302
Joined: Sat Aug 25, 2012 11:31 pm
Location: Kansas (Tornado Alley), USA
Callsign: WC2020
Version: next
OS: Win10/Debain/nVGT640

Re: Space Shuttle - Flight

Postby eatdirt » Fri Dec 14, 2018 3:07 pm

Wow! 10 days out of FG and I am back with a brand new forum structure for space flight, beautiful! Congrats to all!!

Cheers,
Chris.
eatdirt
 
Posts: 178
Joined: Wed Aug 15, 2018 2:06 pm

Re: Space Shuttle - Flight

Postby eatdirt » Tue Dec 18, 2018 11:40 pm

A few snapshots from 4k of elevation, not sure to come back in one piece from that one, V_HP > Mach 31 ;)

Home and home:
Image

Atlantis over the Pacific
Image

Cheers,
Chris.
eatdirt
 
Posts: 178
Joined: Wed Aug 15, 2018 2:06 pm

Re: Space Shuttle - Flight

Postby legoboyvdlp » Mon Jan 21, 2019 6:46 pm

This <orbital-targets>
<section-defined type="bool">true</section-defined>

<object-label type="string">ISS</object-label>
<inclination-deg type="double">51.64</inclination-deg>
<alt-km type="double">410.0</alt-km>
<node-lon-deg type="double">7.72</node-lon-deg>
<anomaly-deg type="double">1.0</anomaly-deg>
</orbital-targets>
should match the current orbit of the ISS.
User avatar
legoboyvdlp
 
Posts: 6129
Joined: Sat Jul 26, 2014 1:28 am
Callsign: YV-LEGO
Version: 2018.3.1
OS: Windows 10 HP

Re: Space Shuttle - Flight

Postby Thorsten » Mon Jan 21, 2019 8:52 pm

Basically no, because our inertial coordinate reference is a bit peculiar, because it's a perfectly circular orbit with zero eccentricity and because it really moves in J3 gravity to which we can only do an approximation.
Thorsten
 
Posts: 10156
Joined: Mon Nov 02, 2009 8:33 am

Re: Space Shuttle - Flight

Postby legoboyvdlp » Mon Jan 21, 2019 9:17 pm

Is it not somewhat closer than the present definition in the mission.xml file, especially in terms of inclination? :?
User avatar
legoboyvdlp
 
Posts: 6129
Joined: Sat Jul 26, 2014 1:28 am
Callsign: YV-LEGO
Version: 2018.3.1
OS: Windows 10 HP

Re: Space Shuttle - Flight

Postby GinGin » Tue Jan 22, 2019 1:35 pm

First post updated for EatDirt and Thorsten last adventure

Nice Lego, we can use that at our own convenience in mission file :)
It is closer, but will be soon outdated by nodal precession and variations.

For a full rendez vous scenario, it will be cool data :)
GinGin
 
Posts: 471
Joined: Wed Jul 05, 2017 10:41 am
Location: Paris
Callsign: Gingin

Re: Space Shuttle - Flight

Postby GinGin » Wed Jan 30, 2019 8:51 am

Quick sum up of my last rendez vous attempt ( it is getting closer and closer) :)
Scenario ISS,
--aircraft=SpaceShuttle-ISS
--lat=0.0 --lon=5.07 --heading=44.66


ISS at 330 km and anomaly 2 in mission file, LAN and inc unchanged

After some phasing, estimation on when we will reach 60 kfeet before ISS ( here at 10h40 m)

Image


Lambert targeted burn to affinate our position at 10h40mn, it will be our Ti point ( terminal initiationà, either we go for the rendez vous then or we phase again to delay the final rendez vous phase)

Image




Then a burn at our apogee to raise the perigee from 40 kft below ISS up to 10 kft at our next estimated perigee ( quite hard to see with J3 perturbations, I am using item 12 Vz speed to estimate maxima and minima of the orbit)

Image



After some try and error, I tried to approach ISS by above to change.

Image



After the last burn, Rendez vous at 12:05 at our next perigee if everything goes well

Image


Image


ISS in sight :)
Proximity operations then, quite hard. Couldn't docked but it was fun

Image

Image


Still no luck with X BPV, it does not like me :)

Image
GinGin
 
Posts: 471
Joined: Wed Jul 05, 2017 10:41 am
Location: Paris
Callsign: Gingin

Re: Space Shuttle - Flight

Postby eatdirt » Wed Jan 30, 2019 4:46 pm

Beautiful Gingin!

I am looking forward to try, but I still have to learn the basics of RDV, I mean with spacecrafts... 8)
eatdirt
 
Posts: 178
Joined: Wed Aug 15, 2018 2:06 pm

Re: Space Shuttle - Flight

Postby Thorsten » Sat Feb 02, 2019 2:59 pm

Still no luck with X BPV, it does not like me


Can you test whether this gradually drifts out of alignment with Earth's rotation speed?
Thorsten
 
Posts: 10156
Joined: Mon Nov 02, 2009 8:33 am

Re: Space Shuttle - Flight

Postby GinGin » Sat Feb 02, 2019 5:50 pm

Can you test whether this gradually drifts out of alignment with Earth's rotation speed?


I will test that more thoroughly.

Coming in close, following some Nasa Rendez vous style

Image

Final phasing burn, rendez vous in two orbit :)

Image



@Thorsten: I had a weird " bug"


Image

After the last burn, Apogee where I was moved from 250000 feet to 150000 feet on X axis
Do you know from what it might come ?
GinGin
 
Posts: 471
Joined: Wed Jul 05, 2017 10:41 am
Location: Paris
Callsign: Gingin

Re: Space Shuttle - Flight

Postby Thorsten » Sat Feb 02, 2019 6:56 pm

Says 150000 meters, not feet - so I suspect there's some unit conversion problem at play.
Thorsten
 
Posts: 10156
Joined: Mon Nov 02, 2009 8:33 am

Re: Space Shuttle - Flight

Postby GinGin » Sat Feb 02, 2019 7:45 pm

Mm yes indeed.
Then I switch unit from metric to imperial
It was well shift from 150 kft and in spec 34 also.
magic teleportation :)
GinGin
 
Posts: 471
Joined: Wed Jul 05, 2017 10:41 am
Location: Paris
Callsign: Gingin

Next

Return to Spaceflight

Who is online

Users browsing this forum: No registered users and 1 guest