Most Difficult Thing You Ever Archive In KSP?

[ThePULSAR]

Mine is building a Spaceship with Interstellar Mod and Realism Overhaul and Venture The entire Kerbol Star System(It took me nearly 3 months)

How about yours ?

[Rbenard108]

Orbiting Kerbin (I'm very very new to KSP and have only orbited Kerbin 1 time which was pretty much all luck!

[MrWalrus123]

Round trip to Eve

(pics soon)

[carneyvich]

orbiting kerbin (im new)

[March Unto Torment]

Hardest thing I've ever done?

Well, a few spring to mind. Probably the single most exhilarating mission I've ever done was getting a massive (~80-tonne) station core into orbit; I mistimed my orbit burn and ended up having to burn to orbit with my periapsis dangerously low. The thing wound up doing about 2,000m/s and 41,000 metres, and was on the verge of exploding when I finally pulled it out of the atmosphere.

'Frustrating' has always been landing on the dark side of the moon. That's annoying as hell.

My present great challenge is getting a 400-tonne SSTO off the ground. I'm not sure what's wrong with it, but it's annoying the hell out of me. It's clearly got the TWR - I'm doing over 160m/s before the end of the runway, for chrissakes - and it's got a wide delta lifting-body design (vaguely similar in structure to the Valkyrie shuttle from Avatar).

[EwingKang]

Land a probe WITHOUT SAS on Mun. No time warp (to stop the rotation) below 8km, purely wasd-ing.

It was in the early years (days, actually, in Kerbin time) of my career gameplay. I've actually miraculously manage to do that within 5 F9s

[Columbia]

One word:

Docking.

[Superfluous J]

One of:

Jool-5 mission

Apollo-style mission to Eve

Perfecting landing on a docking port on the surface of Minmus.

| That.

V

Edited September 8, 2015 by 5thHorseman

[NathanKell]

An unguide burn from LEO that ended in lunar impact.

From my post when I did it:

Probably the hardest thing I've ever done in KSP: Use an unguided, solid TLI burn to get a lunar impact. I'm rather proud. RSS/RO of course. (And RP-0, done before Stability or Basic Solids, and on a budget.)

The rocket was a 2x LR79 first stage, stretched Agena A second stage. Parking orbit of about 230x220km. The probe was a 20in X-Ray core plus 4x Comm16 and a couple 1kg science experiments in addition. The TLI stages were 1x Baby Sergeant and then 6x Baby Sergeant. I had to create a maneuver node of precisely the correct m/s delta V from the kicks (it took some doing to figure out how much kick the decoupler gave too...) The whole Agena+kick+payload was spun up by onboard RCS about a minute prior to TLI, then separated at T-10 (i.e. no more yaw/pitch/roll, just ability to stage), first stage fired at T-7, second at T+1. The result is the second picture.

Launch Vehicle:

Trajectory (ignore MJ delta V expended, it's a bug.)

[Sharpy]

[Commander Jebidiah]

Getting a shuttle to orbit and back. I did this more than once.

Or when i took my SSTO back to kerbin but on reentry the left wingw got destroyed by the VAB then i landed it perfectly on the runway.

[Mikki]

Catching asteroids in Solar orbit, only for the very patient. Hitting them deserves alot manouverclockpulling over and over again, but now i got the hang on it...

[mrclucks]

Making, flying and landing a +300part cargo ssto. Took me a few months

[Monsterlunch]

SSTO-Spaceplane in Realism Overhaul.

Nah just kidding. Is that even possible?

I found SSTO's which can actually go somewhere else after achieving LKO the hardest manageable thing to do.

[mythbusters844]

SSTO-Spaceplane in Realism Overhaul.

Nah just kidding. Is that even possible?

With proper design, it's perfectly possible. :^)

EDIT: 800 posts. woo.

Edited September 11, 2015 by mythbusters844

[Monsterlunch]

How about an SSTO that takes a fully-fueled Saturn V to Pluto orbit? I think that'd be a bit easier.

Just two Words:

MOAR BOOSTERS!

[TheMasta]

Landing on the Mun and returning.

Minmus is next though.

[federicoaa]

Eject a class D asteroid from the kerbol system.

[MalfunctionM1Ke]

Docking... took me a week to figure it out but when i got my head around it, my fantasies went wild

[Joshwoo70]

docking.. i suck at docking!

(i rarely use mechjeb so thats out of the question.)

[Vahal]

The trickiest thing I've done was to bring back a damaged lander with asymetrical thrust from the Mün surface to "circular" safe orbit. the lander had a 4x symetry propulsion around a MK1 lander can (quite common design) but I landed it "a bit" roughly, blowing 3 of my engines an 2 fuel tanks. But since Jeb was the pilot, no problem he said! I had to take off gently as possible to rise up the nose of my lander (both fuel tanks were on the same side, at the opposite of the ground). RCS gave all what they had and I was flying again... Then I found how "easy" was to fly a ship with CoM botched and CoT totally off center. A real pain in the ass! I couldn't use more than 20% around of thrust or the ship started to flip. I tried to make it spin so that would stabilize it but nope I could not make a good manoeuver enough. I sweated quite a lot especially when I was trying to circularize and saw I dangerously passed the Ap, finishing the manoeuver with Jeb pushing the lander with his own jetpack to rise the Pe above 10km... NEVER AGAIN. A crashed lander even if it had sufficient thrust and fuel, will stay on the ground and I will send a rescue mission!

[Starhawk]

My Eve Rocks! mission was far and away the most difficult thing I've done in KSP.

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Happy landings!

[Tw1]

Ooo, it's been a while now. But probably making something I constructing with KAS cables. Physics kept breaking on me.

[Gaarst]

Probably my first attempt at a trip to Moho, and the subsequent rescue missions in Solar and Moho orbit...

[Nathair]

docking.. i suck at docking!

(i rarely use mechjeb so thats out of the question.)