Altaïr
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Edit: latest version here.
Hi guys,
For those of you who developped high skills at SFS, here comes IRIS: Inspired from Reality Intermediate System!
IRIS is meant to be a challenging pack, as well as being as close from reality than possible. The solar system has been modeled at scale 1:4. Those who tried a real solar system (1:1) probably noticed how hard it was to play with. This is because engines characteristics and most parts in SFS are nerfed compared to real rocket pieces for balance reasons. IRIS takes this into account and is meant to recreate the difficulty you would experience in real life.
In one word, IRIS is a world in which you need no less than a Saturn V to perform a Moon mission.
Additionally to this, here are some of IRIS features:
Here are a few screenshots of the pack:
Here are a few hints:
Note: Special thanks to BANDWITH that helped me by providing some accurate terrain data for Deimos and Phobos.
Hi guys,
For those of you who developped high skills at SFS, here comes IRIS: Inspired from Reality Intermediate System!
IRIS is meant to be a challenging pack, as well as being as close from reality than possible. The solar system has been modeled at scale 1:4. Those who tried a real solar system (1:1) probably noticed how hard it was to play with. This is because engines characteristics and most parts in SFS are nerfed compared to real rocket pieces for balance reasons. IRIS takes this into account and is meant to recreate the difficulty you would experience in real life.
In one word, IRIS is a world in which you need no less than a Saturn V to perform a Moon mission.
Additionally to this, here are some of IRIS features:
- All sizes and distance are to scale 1:4, proportions are fully respected.
- Body characteristics are accurate, gravity is the real one for each body, the atmospheres have been balanced to be as realistic as possible
- All spheres of influence are realistic.
- Deimos and Phobos have been redesigned from real topographic data
- Mars terrain has been recreated and offers some notable places to visit, including the Olympus Mons and Valles Marineris (partially done to date, I'm still working on it )
- Because in real life there's no magic line above which the atmosphere suddenly vanishes, IRIS introduces a new feature: the VLEO zone (Very Low Earth Orbit). In practice, this zone is located between the no time-warp line, and the upper atmosphere limit: the atmosphere still exists in that zone, but the pressure is very low. It makes it possible to fly through it at orbital speed with very few losses. Your orbit will slowly decay over time, which makes it not suitable for a satellite or a space station, but is perfectly viable for a parking orbit (avoid opening your solar panels there though). Use this to your advantage!
- All planets from Mercury to Mars are currently available. More planets will be added later.
Here are a few screenshots of the pack:
Here are a few hints:
- your usual rockets may not work anymore, you will have to rebuild them for this pack. For an usual launcher, expect a payload to total mass ratio around 5% in practice: if you want to send 10 tons in LEO, your launcher may weigh around 200 tons on the launchpad.
- Understanding the importance of staging and knowing how to design your launcher will be crucial here if you want to go far.
- The atmosphere diminishes really quickly, don't overestimate its effects: it becomes negligible above 40 km. There's no absolute need to cross the 75 km limit before establishing your orbit.
- On the other hand, you will need to build your horizontal speed as quick as possible: you have to reach 3850 m/s to reach LEO!
- If you try this pack for the first time, don't be too ambitious at first, and start with small missions. You may be surprised at how hard is a Moon return mission!
Note: Special thanks to BANDWITH that helped me by providing some accurate terrain data for Deimos and Phobos.
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