Micro-challenges for all! (Continuation of Newbie Central.)

[vyznev]

4 hours ago, SiriusRocketry said:

Anyone got screenshots of the new challenge? I'm wondering how it's possible on multiple fronts.

If you mean @Dark Lion 's rover jump challenge suggestion, it seems quite doable to me.

Note that Dark Lion didn't specify the direction for the jump. Doing it directly from the west is quite tricky, since the ramp is quite close to the building. But e.g. coming from the northeast and jumping over the pool first gives a much more practical trajectory. (Kind of hard to land on the parking lot for the platinum score that way, though.)

(Or I guess you could build your own ramp and place it wherever you want, although without a height limit on the ramp that makes the challenge kind of trivial.) 

[The Minmus Derp]

4 hours ago, Dark Lion said:

What new challenge? I thought we were waiting on the OP for one...

Yours.

[Dark Lion]

2 hours ago, vyznev said:

Note that Dark Lion didn't specify the direction for the jump

Vyznev got hops! Nice! I've been making my approach from the west... Actually feeling kinda dumb with my platinum-dubious edit.
I also didn't specify whether or not wings and 'chutes were allowed. No props OR sails would be tough though; I speak from over two hours of experience.

Just making a fun suggestion @SiriusRocketry, @The Minmus Derp ... It's not legitimately the challenge until the OP or team says so.

[Kerbalstar]

The next challenge will be posted shortly.

[obney kerman]

Sooooo sorry for the delay, I had like 5 prior commitments!  Anyway,

Challenge 2: Kerbin 3 circuit!

 

For our second challenge, we need you to land on the Mun and Minmus and return to Kerbin. This is a simple challenge, but not easy. Good luck to all!

Edited September 7, 2018 by obney kerman

[The Minmus Derp]

Initiating rocketbuilding proceduuuuure! WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO will do dis.

[4x4cheesecake]

Done

I hope you don't care about the order because in my opinion it is way easiert to reach the Mun from Minmus then the other way around, so I started my journey by heading for Minmus.

Spoiler

Lift-off

Some cool staging stuff:

Setting up the maneuver to Minmus:

After an additional correction burn and some time warping, we are reaching Minmus:

Enjoy the little explosion of the transfer stage:

Checkpoint 1: Landed on Minmus

Next step: The Mun

Setting up a Mun encounter:

Pro tip: Line up the orbital line of the Mun (white), move the cam until the line crosses the trajectory of the ship (orange) -> that's the point where you have to do your correction burn to reach a 0° inclination around the Mun

Reaching the Mun:

Aiming for a good landing spot (between the two big craters):

Checkpoint 2: Landed on the Mun

Relaunch a last time:

Reentry in Kerbins atmosphere:

Mission complete:)

Imgur album with more pirctures: https://imgur.com/a/oLux9du

Edited September 8, 2018 by 4x4cheesecake

[Alchemist]

Well, not too surprisingly I took the same shuttle out of my hangar

Spoiler

 

Boosters

ET

Circularizing

TMI

Mun orbit insertion

and...

flip to horizontal just above the surface

 

Spoiler

 

Horizontal takeoff?

Yes, of course, it's a spaceplane

And an orbit later

Going to Minmus

 

 

Spoiler

 

And going back home

Straight into return trajectory

First entry a bit far from KSC

And a bit hot

And then we bounced a bit too high - had to boost down a bit to aim for KSC. Now the second reentry

Ah, it has so much lift

It took quite some maneuvering to shed extra speed

And onto the runway

 

[Lucast0909]

Sorry the medal for last challenge took so long! (Frankly most of it was down to my own laziness) Still, here it is in all its glory:

One each, if you please.

Edited September 9, 2018 by Lucast0909

[qzgy]

On 9/5/2018 at 7:41 AM, Dark Lion said:

4 HOURS POST: So, I tried this myself for a few hours, with a few rovers. I managed to pull off every medal standard, save Platinum. I'm not sure if it's possible, but the rest are definitely possible.

Judging with this

Should be.

(not mine of course)

[W. Kerman]

Saw challenge- Built craft- Flew Craft- Recorded Video-

Now I just need to edit and upload, and post here- But it's midnight... So....

Maybe tomorrow. 

[Dark Lion]

7 hours ago, qzgy said:

Judging with this
CHEATY HAZARDISHNESS REDACTED

Should be.

(not mine of course)

That totally counts as a kraken-drive and I did say no propulsion LOL

[qzgy]

4 hours ago, Dark Lion said:

That totally counts as a kraken-drive and I did say no propulsion LOL

I mean.... It was exploitation of wheels physics, but in fairness, it was only rover wheels that propelled it. 

[Haruspex]

 

On 9/7/2018 at 3:33 AM, obney kerman said:

Challenge 2: Kerbin 3 circuit!

For our second challenge, we need you to land on the Mun and Minmus and return to Kerbin. This is a simple challenge, but not easy. Good luck to all!

...It is Year 61 of the Kerbal Space Age. A prototype of a new series of interplanetary ships, production index K-ET8909, is about to be launched for extensive testing in the Kerbin system. If mass built, those ships will open a new age of colonization of Duna and the moons of Jool. 

 On day 155, The Twin Moons Expedition sails to the stars at dawn.

 Twin Moons Expedition (craft file)  

I. Kerbin

 

1. Assembly.

2. Pre-Launch.

3. Launch!

4. Booster stage separation.

5. Full throtle. Gravity turn.

6. Initial apoapsis: 120 km.

7. Circularization burn.

8. Launch vehicle separation. 

9. Target: Mun. Executing ejection burn.

10. Got a Mun encounter. Engines off.

II. Mun

 

1. Approaching Munar periapsis.

2. Injection burn. The Kerbals are prematurely cheering.

3. Attained a nice orbit around the Mun. We can park the Orbiter here and go down now.  

4. The Tug separates from the Orbiter and does the deorbit burn. 

5. Target: Farside Crater.

6. Touchdown at 1.5 m/s!

7. Satisfaction - and an extra star in the personal file - guaranteed.

8. In 2 days, the tug has refueled itself and is ready to go back.

9. Launch from the Mun.

10. Up, up and away!

11. Got an intercept with the orbiter at 6 km!

12. Here it is!

13. Those meditative Stanley Kubrick moments.

14. Ejection burn successful, we got a direct hit on Minmus!

15. Good bye, Mun!

Edited September 10, 2018 by Haruspex

[Haruspex]

Continued from above.

III. Minmus

1. Entering the sphere of influence.

2. Insertion burn.

3. We got in a polar orbit. Luckily, this is Minmus, and not Eve or some other abomination.

4. A 70x70 equatirial orbit would be a good place to park the Orbiter. 

5. The Tug undocks and heads down to the Flats.

6. ICECREAM!

7. One does not need to make Minmus great again, because Minmus is Always Awesome!

8. The tug launches at night, as soon as it finished filling the tanks.

9. That wasn't exactly state of the art piloting, but who cares.

10. More Kubrick moments.

11. Ejection burn.

12. It's time to go home.

13. Farewell, our minty, icecreamy friend.

IV. Kerbin

1. Crawling back into that gravity well.

2. First pass gives the "Twin Moons" a 392 km PE orbit.

3. Suicidal deorbit burn to drop off the Crew Return Vehicle!

4. One hour later, the Twin Moons have a 25 km periapsis 15 minutes away.

5. Crew is transferred to the Return Vehicle and leaves the ship. After the separation the Twin Moons, now unmanned, raises its orbit back to 80 km or so.

6. Return Vehicle jettisons the rear docking port and shroud, inflates the heat shield and plunges into the atmosphere.

7. Oh! It's the desert again! It's always the desert.

8. Chutes open and the heat shield is away. We are home.

9. So ends the Twin Moons Expedition of Kerbin Year 61.

 

Edited September 10, 2018 by Haruspex

[W. Kerman]

Blam. Done, video below. Refuel at station was just so that I could pick where to land at the end to test my new Soyuz landing setup
 

Spoiler

 

 

[Kerbolitto]

Hello

Here is my attempt to KerbinGrandTour ! To complete this challenge I used Seraph spaceplane, my most advanced but never tested before cargo SSTO. It is rated at 30t. payload to Duna (on paper) so I figured it may be able to land on 2 moons and return.

This is what happenned :

 

Part 1 : Take-off, Mun injection, Mun landing 

 

Spoiler

Take off stats :

Rocket mode ! 16 Rapiers and 2 Skiffs pushed the plane up to ~1850m/s before shut down, with Nukes finalizing circularization. You may notice that l/d ratio is quite high, because this plane is rated for Duna's atmosphere.

Mun injection :

Mun landing, had to use a bit of Ox to light Skiffs and reduce velocity :

 

Part 2 : Mun take-off, Minmus injection and landing

 

Spoiler

Speeding after take off : as you saw on a screen above, I had a pretty good rebound which allowed me to pitch the ship very early. There is also a hidden Dart in the front cargobay facing downward that helps a lot on flat surface.

Minmus injection using Kerbin fly by : this is actually quite easy to do because the orbital speed is so low around Minmus's orbit that you can almost wait for it during a whole week ! Also I launched at a bad timing because the change of plane occured really close to Kerbin and used a lot more fuel than on an optimum trajectory.

Landing : no need to use rockets on Minmus !

 

Part 3 : Minmus take off, MSS and Kerbin's return !

 

Spoiler

Changing inclination to meet MSS (asdii1970 challenge) before circularizing :

Return maneuver : I used a mun fly-by and a correction maneuver to lower Kerbin's Pe and a more horizontal plane

First aerobrake :

Second aerobrake :

Down to supersonic speed : I managed to pull 17+G with this plane without breaking xD

Fun fact : all the liquid fuel I brought "just in case" (3600units :o) was left unused ... >_<

 

Edited September 10, 2018 by Kerbolitto

[KingDominoIII]

Complete! Way harder than I expected, to be honest. Took me three tries and countless quickloads.

https://imgur.com/gallery/6Y3Xp3Z

[vyznev]

On 9/7/2018 at 3:33 AM, obney kerman said:

For our second challenge, we need you to land on the Mun and Minmus and return to Kerbin. This is a simple challenge, but not easy. Good luck to all!

I missed the deadline for the first challenge, so I resolved to get this one done in time. To make it a little bit more challenging, I tried to go for minimum launch mass. This is what I came up with:

This non-reusable spaceplane launch vehicle weighs 6.3 tonnes at launch (pilot mass not included). It's only controlled from the command seat, so you'll have to board a pilot before deploying the landing gears (or else it'll roll away ).

Getting it off the runway is also a bit of a pain. After takeoff, I recommend throttling down to about 1/3 thrust until you're at least 10 km above sea level. Otherwise the Whiplash engine will just waste most of its fuel trying to push the craft to hypersonic speeds in the lower atmosphere.

Mission screenshots:

Spoiler

Actually, it turns out that I had plenty of spare delta-v, and I probably didn't even really need the heat shield, so I'm sure I could've shaved off even more mass. Anyway, this was a fun mission to fly. Here's the craft file, if anyone else wants to give it a try.  

Edited September 12, 2018 by vyznev

[obney kerman]

The challenge is now closed!

Thank you for participating. The new challenge will be up in an amount of time.

[The Minmus Derp]

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAUGH! I was hoping to hop in KSP tonite and do the challenge. darnitall.

[Kerbalstar]

21 minutes ago, The Minmus Derp said:

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAUGH! I was hoping to hop in KSP tonite and do the challenge. darnitall.

Don’t worry, the next challenge and the medals for this one will be up soon. @doggonemess and @Lucast0909 are working hard on it.

[Lucast0909]

Kerbin Tour Challenge Medal

Here it is, folks!

Enjoy!

[doggonemess]

I'm working on finishing up the challenge now - it'll be up this morning!

[doggonemess]

Okay, so I missed the morning deadline. I'm working on finishing up now!