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sevenperforce

Kexploration Missions 2 and more

5 posts in this topic

Done in pursuit of Doing It Orion Style:

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My three intrepid explorers, preparing for the first crewed launch of the glorious SLS!

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Pad view.

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Since this is the first crewed test, I'm starting with a little pad abort...

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All clear so far...

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Fairing and LES jettison.

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Drogues out...

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Popped the mains.

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Success!

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Reverted to the pad. SSME ignition!

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SRBs ignited; up, up and away.

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Nearing Max-Q, and...
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Whoops, aborting again! Couldn't resist doing a max-Q abort.

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Dropping nicely.

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Nominal splashdown.

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All right, for real this time.

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Majestic to be sure!

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Quite a clip.

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Heating up and leaning over.

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SRB jettison!

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High enough now to get rid of the LES.

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If you look closely, you'll see that I used a three-segment fairing.

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Burning very gingerly now. As usual, the SLS can make LKO easily on the core.

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EUS separation and ignition! 

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Fairing jettison. Only a tiny burn to get up into LKO.

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Circularized! Orion's SM has solar array deployment.

Now, here's where it gets messy. The current NASA plan calls for the EUS to place the entire stack -- DSG component & Orion + SM -- in a high Earth orbit with a period of approximately 24 hours. After this orbit, Orion will separate from the stack and enter its own free-return trajectory, while the EUS places the DSG component in a lunar flyby.

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I had to plot a couple of orbits ahead to get the timing right.

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Burning to raise Ap.

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Done! You can see that the second node appears, after this orbit.

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Set up for a free-return.

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Hanging out at apoapse!

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Orion separates on the way back in.

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Lost the old maneuvering node, but that's okay. Putting Orion where it needs to go.

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Extending solar arrays on the Power & Propulsion Module as I swing around the dark side of Kerbin.

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Setting up the escape-trajectory flyby for EUS disposal.

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First clear shot of the Deep Space Gateway Power & Propulsion module. Note docking port for refueling, hexagonal probe core, and "airlock" up top for experiment storage, as desired.

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Orion flying free with the EUS in the background.

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Finally back at Pe, and burning for the flyby!

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Switched over to Orion; burning for the free-return.

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Free-return complete!

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Separation from the EUS. The EUS will continue to a munar flyby and escape.

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Testing the engines on the DSG. In reality, the four smaller ion engines will be on special gimbal arms, but KSP doesn't have that capability.

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Here's what the current disposal trajectory looks like.

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Firming up the flyby. In reality, the DSG will be assembled in a halo orbit around L2, but since there are no Lagrange points in KSP, a polar Mun orbit will have to do.

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The Kermans are excited for their flyby!

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Setting up my node for munar capture. Thanks to the scaled-up ion thruster, I can do the capture burn easily.

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Orion is inside the Mun's SOI.

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Nearing Munar Pe; starting to throttle up.

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Full capture burn!

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Capture complete.

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Closest approach on free return.

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Goodbye, Mun!

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Set up a node to fix inclination.

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Inclination fixed!

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Getting ready to lower Munar Pe.

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What a beautiful shot!

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Reached my terminal orbit.

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Meanwhile, Orion is coming back in toward Kerbin.

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Service Module jettison.

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Starting to get entry heating; SM visible in the background.

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Took quite a long time, really.

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Through re-entry; drogues popped.

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Jettisoned heatshield.

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Mains popped, drogues cut!

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Splashdown!

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That's a wrap.

 

Edited by sevenperforce

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@sevenperforce Nice, but I like to make a little "parachute structure" at the top with the parachutes and like a cubic octagonal strut at the top, so I have a place to attach a decoupler to decouple the DP. The DP is then offset downwards. 

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34 minutes ago, Bottle Rocketeer 500 said:

@sevenperforce Nice, but I like to make a little "parachute structure" at the top with the parachutes and like a cubic octagonal strut at the top, so I have a place to attach a decoupler to decouple the DP. The DP is then offset downwards. 

I just used an action group to cut the drogues.

EDIT: Oh, wait, did you mean docking port?

I never decouple the docking port; I use the docking port as the decoupler for the LES.

Edited by sevenperforce

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Here's Exploration Mission 3!

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First all-female crewed launch!

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SSME ignition.

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Up, up, and away!

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My TWR is really through the roof.

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Disaster!!!!

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Because of a lighter-weight payload, I was going VERY fast very low in the atmosphere at stage separation, and so one of the SRBs impacted the core. Big explosion. Samlenna and Maxsie are horrified, as expected.

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LES successful, though!

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I had the LES set to jettison the heat shield on separation, to help with TWR. This...might not have been a good idea.

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Will it work?

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I popped a single drogue to try and prevent excess heating...thankfully, I made it.

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None the worse for wear!

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Trying again. Liftoff!

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This time I'm turning 90 degrees so staging doesn't RUD me.

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Quick gravity turn.

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Moment of truth!

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Ahhh, much better.

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LES jettison.

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Staging!

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Very small circularization burn.

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Decided to follow the core back down to see if it survives re-entry.

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Toasty!

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Surprisingly, it did survive re-entry...though it obviously didn't survive impact.

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To match the weird polar orbit, I'm going to have to make the injection burn rather tricky.

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Finishing the injection burn.

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Executing the flip.

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Docked and separated from the EUS! The EUS will follow a nice slingshot out of Kerbin's SOI.

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The crew can see Kerbin below and the Hab module out the front window.

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After some adjustments, coming in nicely.

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Panels out, testing systems.

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This is a weird orbit to try and match from TMI.

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Here goes!

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Love the radiative nozzle.

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Almost done with orbital injection.

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Captured! Now to rendezvous.

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Got the first intercept to match.

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Burning to match velocity.

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Going to do the final approach and docking with the PPM to conserve propellant.

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Closing.

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Target locked!

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Kerbin in background, and...

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Docked!

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Our fledging space station doth ever expand.

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Touring the hab.

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A quick spacewalk just to check out the systems...

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Looks good from here!

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Undocked, backing away.

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Burning for home. Fuel will be tight.

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Made it!

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Preparing to jettison the SM.

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Nice shot!

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Goodbye SM; hello Kerbin.

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Toasty. Unfortunately, not toasty enough; we skipped out of the atmosphere and had to do another go-around.

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Coming in again.

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Burned off a LOT of ablator.

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Made it!

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Heat shield jettison.

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Safely down!

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