Still playing Kerbal Space Program.
The thing uses conic approximations for orbitals. It's actually quite good. Unlike the last time I played, there's more than the Mun and Minmus (the small outer moon)--there's a whole solar system. Duna is the Kerbin equivalent to Venus, and your first window of opportunity to visit (based on phase angles) is on day 54 of the game. I'm on day 41ish, so I don't have much time to prepare, because another window doesn't come around until around 200 days later.
Because the window of opportunity is so small, I want to launch everything I need to get there in one day. Thus far, I've been launching ,orbiting, and landing single spacecraft on the Mun and back. So, to practice, I launched the skeleton of a satellite into orbit, along with a bunch of fuel tanks. The satellite was about 60 tons, which is pretty much at the top end of what I can lift with stock parts. Each fuel tank was 62 tons if you include the delivery vehicle.
Then I had to manage capturing those spacecraft in Munar orbar, each about 10 minutes apart from the other. Once in place, I had to match each fuel tank to the satellite orbital plane and Hohmann transfer to meet up, match velocities, and then carefully bump the docking ports together. A big pain in the ass when you're dealing huge masses. This is definitely a game for nerds. I did it in two batches..once with three fuel tanks to prove the concept, and then the next with the remaining 6.
The satellite itself was the tallest thing I've built, and I actually maxed out my hanger height building it.
Liftoff!
The fuel tank component
Each tank weighs 36 tons full, plus the delivery vehicle. It really does take that many rockets to get into orbit. I'm using an asparagus style lifter, with each tank feeding fuel into it's neighbor in an S configuration. Each tank drops off in pairs until I end up with one single tank and rocket just on the edge of orbit for circularizing the orbit. Then I drop off all the big tanks and use the little lander to get to the Mun.
Juggling multiple insertions and orbital maneuvers.
Fuel tank and delivery vehicle, intercepting my already-placed satellite.
Separation of structural support and empty fuel tanks and rockets.
On approach. Slowing to match velocity.
Docking with RCS thrusters
Delivery vehicle separation.
Using RCS thrusters to fly retrograde until my orbit decays.
Crash! The unmanned delivery vehicle is no more, and no longer cluttering up my orbital space.
My fuel station in all of its glory 40KM off the surface of the Mun, with Kerbin in the background. This satellite configuration probably has enough on-board fuel to feed 20 missions to the outer planets.
Naturally, I plan on hanging one of these around each of them, too
The thing uses conic approximations for orbitals. It's actually quite good. Unlike the last time I played, there's more than the Mun and Minmus (the small outer moon)--there's a whole solar system. Duna is the Kerbin equivalent to Venus, and your first window of opportunity to visit (based on phase angles) is on day 54 of the game. I'm on day 41ish, so I don't have much time to prepare, because another window doesn't come around until around 200 days later.
Because the window of opportunity is so small, I want to launch everything I need to get there in one day. Thus far, I've been launching ,orbiting, and landing single spacecraft on the Mun and back. So, to practice, I launched the skeleton of a satellite into orbit, along with a bunch of fuel tanks. The satellite was about 60 tons, which is pretty much at the top end of what I can lift with stock parts. Each fuel tank was 62 tons if you include the delivery vehicle.
Then I had to manage capturing those spacecraft in Munar orbar, each about 10 minutes apart from the other. Once in place, I had to match each fuel tank to the satellite orbital plane and Hohmann transfer to meet up, match velocities, and then carefully bump the docking ports together. A big pain in the ass when you're dealing huge masses. This is definitely a game for nerds. I did it in two batches..once with three fuel tanks to prove the concept, and then the next with the remaining 6.
The satellite itself was the tallest thing I've built, and I actually maxed out my hanger height building it.
Liftoff!
The fuel tank component
Each tank weighs 36 tons full, plus the delivery vehicle. It really does take that many rockets to get into orbit. I'm using an asparagus style lifter, with each tank feeding fuel into it's neighbor in an S configuration. Each tank drops off in pairs until I end up with one single tank and rocket just on the edge of orbit for circularizing the orbit. Then I drop off all the big tanks and use the little lander to get to the Mun.
Juggling multiple insertions and orbital maneuvers.
Fuel tank and delivery vehicle, intercepting my already-placed satellite.
Separation of structural support and empty fuel tanks and rockets.
On approach. Slowing to match velocity.
Docking with RCS thrusters
Delivery vehicle separation.
Using RCS thrusters to fly retrograde until my orbit decays.
Crash! The unmanned delivery vehicle is no more, and no longer cluttering up my orbital space.
My fuel station in all of its glory 40KM off the surface of the Mun, with Kerbin in the background. This satellite configuration probably has enough on-board fuel to feed 20 missions to the outer planets.
Naturally, I plan on hanging one of these around each of them, too
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