![Giulio Dondi](/img/default-banner.jpg)
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Giulio Dondi
Приєднався 9 вер 2013
I write code. I play space/flight sims. I might do other stuff as well.
KSP - Space Shuttle RTLS revisited with real guidance programs
I revisit the Space Shuttle Return-to-Launch-Site abort using my OPS1 program for ascent guidance and OPS3 for glide and landing.
_For bug reports, open up an issue on the GitHub repo_
System : i5 13600k@ 5.1 GHz , 64 Gb RAM, RTX3090Ti
KSP version 1.12.3
Modlist (non-exhaustive) :
-Real Solar system + dependencies
-EVE Raymarched Volumetrics (Early access)
-ballisticfox's RSS Reborn
-Realism Overhaul + dependencies
-Kerbal Operating system
-Principia
-Kerbal Konstructs
-KerbinSide props
-OSS statics
-Tundra space center
-kOS Ferram plugin
-My own fork of Ferram Aerospace (github.com/giuliodondi/Ferram-Aerospace-Research-modded)
-My own fork of Space Shuttle System (github.com/giuliodondi/Space-Shuttle-System-realistic-aerodynamics)
-the kOS Shuttle OPS1 script
(github.com/giuliodondi/kOS-Shuttle_OPS1)
-the kOS Shuttle OPS3 script
(github.com/giuliodondi/kOS-Shuttle-OPS3)
-My own fork of SpaceODY's STS Locations (github.com/giuliodondi/STS-Locations)
Music:
- Darkfall by Karl Casey @ White Bat Audio
- Winter Storm - Junichi Nakatsuru, AC5 OST
- Redemption by Karl Casey @ White Bat Audio
_For bug reports, open up an issue on the GitHub repo_
System : i5 13600k@ 5.1 GHz , 64 Gb RAM, RTX3090Ti
KSP version 1.12.3
Modlist (non-exhaustive) :
-Real Solar system + dependencies
-EVE Raymarched Volumetrics (Early access)
-ballisticfox's RSS Reborn
-Realism Overhaul + dependencies
-Kerbal Operating system
-Principia
-Kerbal Konstructs
-KerbinSide props
-OSS statics
-Tundra space center
-kOS Ferram plugin
-My own fork of Ferram Aerospace (github.com/giuliodondi/Ferram-Aerospace-Research-modded)
-My own fork of Space Shuttle System (github.com/giuliodondi/Space-Shuttle-System-realistic-aerodynamics)
-the kOS Shuttle OPS1 script
(github.com/giuliodondi/kOS-Shuttle_OPS1)
-the kOS Shuttle OPS3 script
(github.com/giuliodondi/kOS-Shuttle-OPS3)
-My own fork of SpaceODY's STS Locations (github.com/giuliodondi/STS-Locations)
Music:
- Darkfall by Karl Casey @ White Bat Audio
- Winter Storm - Junichi Nakatsuru, AC5 OST
- Redemption by Karl Casey @ White Bat Audio
Переглядів: 8 594
Відео
KSP -New Space Shuttle System features
Переглядів 2,1 тис.3 місяці тому
A short video to show some of the new feature I've been working on for the Space Shuttle System mod View the progress at the mod repository page: github.com/giuliodondi/Space-Shuttle-System-realistic-aerodynamics
KSP - Space Shuttle OPS3 entry and landing kOS program
Переглядів 14 тис.6 місяців тому
I showcase the newly-completed Entry and Landing kOS Script for the Space Shuttle. Adapted and inspired by the real-life Shuttle avionics. Grab it from the GitHub repo: github.com/giuliodondi/kOS-Shuttle-OPS3 _For bug reports, open up an issue on the GitHub repo_ System : i5 13600k@ 5.1 GHz , 64 Gb RAM, RTX3090Ti KSP version 1.12.3 Modlist (non-exhaustive) : -Real Solar system dependencies -EVE...
KSP- Space Shuttle Autoland with kOS
Переглядів 2,4 тис.8 місяців тому
I showcase my progress on automatic landing of the Space Shuttle using real-life guidance algorithms System : i5 13600k@ 5.1 GHz , 64 Gb RAM, RTX3090Ti KSP version 1.12.3 Modlist (non-exhaustive) : -Real Solar system dependencies -EVE Raymarched Volumetrics (Early access) -ballisticfox's RSS Reborn -Realism Overhaul dependencies -Kerbal Operating system -Principia -Kerbal Konstructs -KerbinSide...
KSP - Space Shuttle Classified Satellite Mission
Переглядів 3 тис.Рік тому
I perform the infamous Reference Mission 3B with the Space Shuttle, involving the intercept retrieval of a satellite in less than one orbit. System : i5 13600k@ 5.1 GHz , 64 Gb RAM, RTX3090Ti KSP version 1.12.3 Modlist (non-exhaustive) : -Real Solar system dependencies -Extreme Visual Overhaul -EVE Raymarched Volumetrics (Early access) -My own fork of Ferram Aerospace (github.com/giuliodondi/Fe...
KSP - (not quite successful) SOCK reentry script test
Переглядів 1,1 тис.Рік тому
I test the SOCK Space Shuttle with my reentry script with no particular alterations to the RO configs. Reentry goes somewhat well, TAEM less so, while Approach is all over the place.
KSP - Shuttle landing in volumetric clouds
Переглядів 1,4 тис.Рік тому
Fun little video showcasing the new volumetric clouds available in Kerbal Space Program. I also show the latest improvements to the Shuttle landing script: Fly-By-Wire steering, smooth HAC guidance, and realistic HUD decluttering. Audio is a montage of recordings from STS-115 and STS-129. System : i5 13600k@ 5.1 GHz , 64 Gb RAM, RTX3090Ti KSP version 1.12.3 Modlist (non-exhaustive) : -Real Sola...
kOS Space Shuttle Re-entry Guidance improvements
Переглядів 2,7 тис.2 роки тому
I present the updated version of my Shuttle Entry and Approach guidance, with a new HUD for reentry, Control-Stick-Steering functionality for manual control and TAEM guidance in-between Entry and Approach Find the script in my GitHub repository: github.com/giuliodondi/kOS-ShuttleEntrySim System : i5 8600k @ 4.6 GHz , 32 Gb RAM, RTX2080 KSP version 1.9.1 Modlist (non-exhaustive) : -Real Solar sy...
KSP - Space Shuttle TAL abort with kOS
Переглядів 13 тис.2 роки тому
Space Shuttle Endeavour performing aTransatlantic Abort Landing (TAL) in Kerbal Space Program with RSS/RO. Endeavour lands safely in Zaragoza, Spain. The Shuttle is under complete kOS control from liftoff to approach initiation. I use my own ascent and reentry guidance scripts, modified to perform the abort. System : i5 8600k @ 4.6 GHz , 32 Gb RAM, RTX2080 KSP version 1.9.1 Modlist (non-exhaust...
KSP - Space Shuttle around the Moon
Переглядів 8 тис.3 роки тому
My first cinematic KSP video. I send Space Shuttle Atlantis around the Moon in Real Solar System using a MLV Saturn V with liquid boosters. 0:00 Launch 3:56 TLI 5:42 Moon Flyby 7:12 Aerobraking 7:56 Reentry 10:04 Landing System : i5 8600k @ 4.6 GHz , 32 Gb RAM, RTX2080 KSP version 1.9.1 Modlist (non-exhaustive) : - Real Solar system dependencies - RSS 16k textures - Ferram Aerospace - Realism O...
KSP - Lunar Landing with kOS and PEG
Переглядів 9 тис.3 роки тому
A showcase of my Lunar Landing script adapted from my Ascent script. The braking guidance is done by Powered Explicit Guidance (of UPFG ) which the ntransitions into a gentle hover and descent. The guidance algorithm is a modified version of Reddy's PEGAS System : i5 8600k @ 4.6 GHz , 32 Gb RAM, RTX2080 KSP version 1.9.1 Modlist (non-exhaustive) : -Real Solar system dependencies -RSS 16k textur...
How do rockets guide themselves to orbit?
Переглядів 4 тис.3 роки тому
This is an explanation of Powered Explicit Guidance, the guidance algorithm used by the Space shuttle to achieve orbit. My own kOS ascent script based on Reddy's PEGAS is shown as a demonstration of the algorithm. System : i5 8600k @ 4.6 GHz , 32 Gb RAM, RTX2080 KSP version 1.9.1 Modlist (non-exhaustive) : -Real Solar system dependencies -RSS 16k textures -Ferram Aerospace -Realism Overhaul dep...
Shuttle Deorbit planning with kOS and Trajectories
Переглядів 2,1 тис.3 роки тому
A short video explaining how to use my script and the Trajectories mod in conjunction to deorbit the Space shuttle in Kerbal Space Program RSS. The script : github.com/giuliodondi/kOS-ShuttleEntrySim Trajectories : forum.kerbalspaceprogram.com/index.php?/topic/162324-18-111x-trajectories-v240-2021-02-07-atmospheric-predictions/ System : i5 8600k @ 4.6 GHz , 32 Gb RAM, RTX2080 KSP 1.9.1
Space Shuttle Deorbit and Re-entry Guidance with kOS
Переглядів 26 тис.3 роки тому
I finally released on GitHub my kOS scripts to perform deobit, re-entry and landing of the Space Shuttle. You can find them at github.com/giuliodondi/kOS-ShuttleEntrySim This video is a demonstration of how I use them in concert with other mods to land the Shuttle in KSP System : i5 8600k @ 4.6 GHz , 32 Gb RAM, RTX2080 KSP version 1.9.1 Modlist (non-exhaustive) : -Real Solar system dependencies...
KSP - Space Shuttle RTLS abort with kOS
Переглядів 41 тис.3 роки тому
Space Shuttle Discovery performing a Return To Launch Site abort following an engine failure in Kerbal Space Program. The Shuttle is under complete kOS control from liftoff to approach initiation. I use my own ascent and reentry guidance scripts, modified to perform the abort. System : i5 8600k @ 4.6 GHz , 32 Gb RAM, RTX2080 KSP version 1.9.1 Modlist (non-exhaustive) : -Real Solar system depend...
KSP - Space Shuttle reentry and landing in Real Solar System
Переглядів 110 тис.4 роки тому
KSP - Space Shuttle reentry and landing in Real Solar System
KSP - Space Shuttle Challenger in RSS
Переглядів 15 тис.6 років тому
KSP - Space Shuttle Challenger in RSS
Hi, congratulations for the Shuttle fork and the programs!, however, when I try to use ops3.ks I get the following error: "not enough rudder control modules found". What did I do wrong? Thank you very much
Does the Space Shuttle have the forward RCS enabled during re-entry like that in real life? Or they just use the rear ones
I seem to remember they disable the forward RCS to avoid plume-plasma hotspots, but I cannot find a reference document for this. Indirect evidence is that the flight procedures have all the steps to dump the forward RCS fuel to depletion for CG balancing. I keep all the RCS active because I need the extra yaw authority, while in reality the entry DAP used the elevons as sideslip dampers when the AoA was high and so the aft RCS was enough
@@giuliodondiI have one more question, how much crossrange does your Space Shuttle mod have? In Kilometers and the AZ Error
It should have at least 1500km, which is roughly a delaz of 15° at a distance of 7400km. I don't know the upper limits but this is enough to do the 3B reentry mission
@@giuliodondi How do you find the crossrange in km? Are there methods for it or you just calculate it? (In KSP)
you need a measurement of distance to target (d) and delaz(psi), then the formula comes straight from spherical trigonometry: xrange = Re*arcsin(sin(psi)*sin(d/Re)) and careful about degrees to radians conversions
Really late comment but I think that once you get the contingency aborts finished up that you should showcase them in a video recreating the STS-26 RTLS Test Simulation. It’d be a neat way to test it out and would fit perfectly.
I know the video, that might be a good idea for the 2EO blue case, although it would end in a bailout
How did you properly install internal view for the shuttle I have tried so many times and my kerbal camera goes way above the cockpit like if it was sticking it’s head out, and ASET is not loading, it displays only RPM screens
post bug reports on GitHub please
Would it be possible to use the OPS1 and OPS3 scripts without far and principia? the two just eat at my resources when im playing...
Principia is not listed as a requirement anywhere in the readmes. FAR is a necessary requirement of RO and the Shuttle System fork, these will never work without
hello giulio i asked to raiz space but my script doesn't work when I put run shuttle or ops1 or ops3 nothing happens just a line error or something like that
1 - This is not the place to be asking for support. Go to the GitHub issues 2 - "just a line error or something like that" - am I supposed to understand what your problem is from this?
ok i try
What do you sue to get the engine flares for the SRBs?
the SSS fork has all the dependencies listed
Concorde space shuttle edition
Really impressive work!
Bloody incredible. Your simulation makes it all seem so simple, but it's downright terrifying to think of actually executing an RTLS Abort with crew aboard.
Congrats! I'm waiting for your Buran Energia version
Your camera work is awesome. Great video.
Guilino - maybe you wanna take a look into the Flight Sim DCS - there's PLENTY of realism in there, and communitys the nicest I know.
Wow !!!!!!!
there's a miscalc in either the drag or lift profiles (or both), or in the reentry energy available, since airbrakes werent deployed on the shuttle until touchdown. the recoverable error upon reentry was too much energy not too little, but excess energy was easy to burn through a more aggressive flare/stall procedure during short final or additional S-turns if their reentry calcs were way off. either which way, its an impressive physical feat - as well as being pretty damn well modeled in KSP.
It's false that the airbrakes weren't used until touchdown. Read page 5-81 of the Entry flight procedures: gandalfddi.z19.web.core.windows.net/Shuttle/JSC-11542%20-%20Flight%20Procedures%20Handbook%20Rev%20E%20200504.pdf They were first opened around Mach 10 to help with pitch trimming, lowered to 65% prior to TAEM interface, then used to actively modulate dynamic pressure when subsonic. Also this program does not do active drag modulation on a profile like the real Shuttle guidance did, if you read the commentary. Have a look at my more recent work for a closer recreation
Great Video in Love the size of the video because I can full screen it on my tablet and I still can't believe that was a real plan that NASA wanted to use
how can I activate the reentry glow effect ? Is it an engine, is automatic or something else ?
it's just an emissive wired to the part temperature, you don't do anything yourself
please make a video of how to install your shuttle mod dependiences etc
Really love the glowing on reentry but I would say that that plasma forming on the ship is not really cloudy but still epic!
This is honestly incredible, I just have one question does it work with SOCK and ksrss
no, the programs are calibrated for my fork of SSS and full RSS/RO
@@giuliodondiok thanks great job though
RTLS abort aka taking the shuttle out for a spin
That was so cool to watch
This is already so amazing. But think about this. They built this complicated software into the shuttle during the era of disco music. It also had to be synchronized across multiple computers with the power to detect and vote out a broken system. And it HAD to work. There was no way a human could calculate all this by looking at the instruments. It either had to work or the president was going to have to make a sad speech. My respect to the software and hardware engineers and the many people that contributed to this amazing piece of software history. And thank you for doing your part to show us this amazing piece of history.
For those reasons they had the BFS, an isolated computer running a sinplified version of the guidance equations and the OS. There is this presentation on software-induced Loss of Crew and Vehicle (LOCV) www.slideshare.net/slideshow/space-shuttle-flight-software-pass-loss-of-crew-errors-jk-orr-20150827-52150515/52150515 which details one simulated emergency where two rapid engine failures bricked all four primary computers, without the BFS it would have been fatal
Can it do Columbia?
What do you mean?
Hi! Is EVE Raymarched Volumetrics (Early Acess) the volumetric cloiuds mod from blackrack?
Yes
@@giuliodondi Thank you!
Lovely lovely programming there mate
Tasteful Ace Combat 5 music. Though it would be rather sudden in a funny way if Ofnir and Grabacr showed up as they did. Very nice video all in all!
Awesome video, I enjoyed watching this. My son is learning about this stuff and i wanna learn it with him!
Amazing to see such automated control, but why does is broken engine lit at times after it fails?
In the several takes I did, sometimes the right engine was shut down. The first engine to fail is either the left or the right at random
Worm shuttle > Meatball Shuttle.
I have no doubt Eileen Collins would have aced this had it been required for STS-93
This is so fucking awesome. Fantastic work!
holy shit your aerodynamic model handles so well, I'm definitely flying the shuttle with a joystick now
"Single engine Zaragoza 104"
Wow, that's really cool!
Funny how the letters RTLS used to send shivers down the spines of every spaceflight fan but now those letters just mean "cool we get to see a SpaceX Booster land on land instead of at sea"
If humans were on board we would still shiver I think
@giuliodondi not as much, the Shuttle had such a low TWR during its RTLS and such a narrow flight envelope that made RTLS hair raising I rather suspect Starship's envelope will be much larger.
Shows the power of the RS-25s that even with two or one they can still get the orbiter back.
in a 2EO situation you only get the Orbiter back if you're in the last 30 seconds or so of powered RTLS or you're in a 2EO GREEN area and within range of Bermuda or an ECAL site, or single engine TAL/ATO. Any other situation and you have to bail out
@@giuliodondi yeah, but still, impressive.
That was breathtaking and frightening to watch.
Ive always admired anyone who can make kOS work well, great job!
babe its time for your daily giulio dondi guidance-posting!!!!
(In KSP RSS) While launching out of vandenberg (using your script) I actually had to do an RTLS abort. It was scary, it was precarious, but we made it home
The shuttle never did an abort, what are you talking about?
@@judet2992 he’s talking about in game
@@Kanru-5829 ah nice
@@judet2992 I was referring to KSP RSS, and there was a shuttle abort STS-51F it was an ATO (Abort to orbit) after a single RS-25 failed 5 minutes into the flight
@@nikelinq2899 ah thanks, also I meant RTLS abort.
Impressive... really impressive.
Rtls seems like something I’d do just messing around in ksp
babe wake up new Giulio Dondi just dropped
The Shuttle sure is a cool vehicle, but these abort scenarios are just insane. And to think that the shuttle could've been quite different, if not for that one very specific mission profile the DoD wanted (and never got to do it)
In 1971 the Shuttle baseline was quite different, with smaller wings and internal fuel tanks. Yet, it still had an RTLS abort scheme involving a combined aerodynamic-thrusting turn to reverse course. You can read about it here: ntrs.nasa.gov/api/citations/19720006189/downloads/19720006189.pdf , not sure if this would have been that much safer. All the problems with the Shuttle concept fundamentally stem from the horizontal-landing/spaceplane paradigm. But spaceplanes are cool. Also, the Vandenberg once-around crossrange requirement was not exactly imposed on NASA by the Air Force, I think they wanted it anyways for aborts, but I don't have a reference for this sadly
@giuliodondi I must confess, I saw that information in a Scott Manley video, stating that the modifications required for the shuttle to fulfill that specific mission profile had made the orbiter more complex than it otherwise had to be, especially regarding the extended hypersonic glide time requirement. It's been a good while since I've watched it, could very well be wrong
@@matthewdev I know exactly the video, the one about the 3A/3B missions. The Air Force requirement was being able to launch into polar orbits from Vandenberg. Then, in 1973, the Vandenberg launch was formalized into the 3A/3B reference mission profile, involving deployment or retrieva of a satellite and reentry in a once-around orbit. These missions did drive the aerodynamic and heat shield design, and yet there is no explicit mention of them beyond a couple papers in 1973/74. This 1977 paper here ntrs.nasa.gov/api/citations/19770026315/downloads/19770026315.pdf studies the exact reentry profile for a once- around mission from Vandenberg and yet doesn't mention the 3A/3B reference profiles. My speculation is that the 3A/3B missions were nothing more than wargame studies (because they're ludicrous and only make sense in a state of war) but the high crossrange WAS useful to NASA for once.around abort capability for the Vandenberg mission they actually were going to fly (STS-62A) . Moreover, high crossrange gives you two or three deorbit windows every day for pretty much any landing site at almost any inclination, so you can wait for weather to clear up, which they did a lot
RTLS is just plain crazy!
Funny to think how every single trajectory screen that the shuttle had was just basically “Here are two lines and a shuttle symbol, keep the shuttle within the lines.” Really amazing video though!
Towards the end of the program they implemented the ASCENT BEARING and ENTRY BEARING displays which basically are moving maps, kind of like the Orbiter2016 MFDs. They first flew them on STS-126
@@giuliodondi odd idea for a mission, but what if you had one where the shuttle had to be repurposed into a passenger transport across the pacific?
impressive
How do you get your fork of sts locations to work with RSS reborn?
never tried this. I would just keep the KK groups and static configs and throw the rest, like the Edwards and Vandenberg terrain
you're a god