Kerbal Space Program (KSP) is a spacecraft simulation game for Mac, Linux or Windows. Players build, launch, and pilot spacecraft and airplanes through a fictional 8 planet star system.

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KSP - Mechjeb Ascend Guidance not doing it right

I'm trying to orbit Kerbin at 100km with 90º of orbit inclination using mechjeb ascend guidance but mechjeb is not making vessel orbit correctly. The orbit is like 5º offset and the apoapsis and ...
5
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3answers
90 views

Missing buttons, options and astronauts in Kerbal Space Program

Recently, Kerbal Space Program had an update. Since that update, several buttons and options are not visible anymore. For example, the in-game settings are not shown: And at the vehicle assembly, ...
3
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1answer
63 views

How prevent orbit change while using RCS to point probe anti-radial all time

How can I prevent orbit changes, while using RCS to keep my probe always pointing down? I'm using the probe with Remote Tech 2, and I want the probe always pointing down to be more realistic, but if ...
9
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1answer
614 views

Is it possible to exhaust all ore on a planet or moon?

A while back I managed to land on a class D asteroid, and divert its orbit to Kerbin's. There I used it to supply my orbital refueling station. After a while though, I received a message stating ...
6
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1answer
91 views

What are the minimum altitudes for each warp level?

The higher warp factors have a minimum altitude requirement. What is the lowest altitude at which each warp is allowed?
3
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1answer
58 views

How can I find the way back to the runway? [duplicate]

Kerbal Space Program doesn't seem to have an option to plant flags in EVA anymore. How can I find my way back to the runway I launched a Space Plane from without using a mod?
5
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1answer
252 views

How many science points can be obtained through experiments in the whole solar system?

When you perform every single experiment in every single biome of every single celestial body in every possible situation until their return values are zero, how many science points will you gain in ...
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3answers
329 views

How to design heavy lifter rocket

I'm building a space station that will make a trip to Jool, collect science from its moons and return. Here is my reusable science module (2600kg): I tested my Laythe lander in Kerbin. The lander ...
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2answers
202 views

Why are parachutes so useless?

It seems that in one of the last few version the physics have been tweaked to make re-entry and landing much more dangerous. In particular, parachutes now (1.0.5) seem absolutely useless. I've been ...
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3answers
658 views

What's more fuel efficient, orbit or slingshot?

I didn't test it because I just had that idea. Normally, I (maybe everyone?) would send the ship to orbit Kerbin and then plan the trajectory to the final destination. Making the spaceship to orbit ...
4
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1answer
75 views

Kerbal Space Program, how do you disable autosave?

Yesterday I was in the middle of a space shuttle orbit mission when something urgent came up that forced me to leave my computer. I exited the game, Kerbal Space Program. Today I come back and find ...
3
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1answer
70 views

Can not extend Antennae after data transmission

In my current version of the game (1.05) if I have a Communotron 88-88 extended and use it to transmit data, it will automatically retract and thenceforth be unable to be re-extended since the ...
2
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1answer
155 views

Docking Port Bug

I've been working on a space station and, upon sending up the final module and getting it in place I realized I neglected to send up the "hallways" that connect them (the modules) to the core. I ...
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2answers
265 views

Does deltaV have a limit using only stock parts?

The problem: I am trying to go to as much of the Kerbal system as possible, with the technology and base facilities that most people (including myself) used to get to the mun. (Why? We go to the ...
7
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1answer
112 views

Why did Jebediah survive after jumping out of a plumeting rocket?

A weird thing happened this morning, I suspect it was a bug, but I'm wondering if this has happened to anyone else. Jebediah was coming in for reentry to Kerbin when he deployed the parachute too ...
1
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1answer
120 views

Why I ever should use a Kerbodyne S3-14400 Tank?

The Kerbodyne S3-14400 fuel tank's statistic is just the double in anything I'm considering so far of the Kerbodyne S3-7200 Tank. It costs twice as much money, is twice as high, contains twice as much ...
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2answers
97 views

How can I tell if my parachute will work?

In a recent (relatively, stopped playing for a while) update of KSP, drag is much more of an issue now. Prior to this update, the staging icon (the orange icon to the left of the screen while in ...
4
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1answer
61 views

Why does short pressing the left shift key switch the view mode in addition to increasing the throttle?

When flying a spaceship if I press left shift briefly and let go immediately it beeps1 and switches the view mode2 in addition increasing the throttle. If I long press it it just increases the ...
9
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1answer
520 views

Sane career mode lowest tech levels

I am requesting guidance on the sane limitations of technology in Career mode. I've been beating my head into a brick wall with the game, and I'd appreciate knowing if it's my incompetence or I'm ...
2
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2answers
60 views

How to make a dockingport not detatch it self?

Actually I'm experimenting with dockingports because before I sent a spacecraft into orbit which later should be dockable, I'm experimenting I got it correct how the ports are working. Fortunately I ...
2
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1answer
81 views

Why is my parachute deploying without input

I have build a simple rocket to bring 2 tourists into space. The final stage consists of, a a MK1 Command Pod, a MK1 Crew Cabine, a small heat shield, and an MK16 Parachute. After flying a few minutes ...
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1answer
99 views

Any way to edit game files to revert a flight in KSP?

I was showing my friend what Kerbal Space Program was all about, and I wanted to launch a quick mission to the Mun and land so I could EVA just to show him the massive scale of the game. When I got to ...
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1answer
71 views

Half of my training missions are missing

After not playing for a while I re-launched KSP and went back to refresh my skills with the training missions - however I only have the more advanced missions available - how do I reset or re-acquire ...
3
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1answer
152 views

In this Kerbal Space Program tutorial, why does the commentator put the Stayputnik module on top of the crew capsule?

I have been watching Scott Manley's KSP tutorials, specifically this one here. He intentionally strands a Kerbal in orbit, then shows how to build a "rescue rocket", but doesn't go very in depth on ...
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2answers
1k views

My Mun encounter trajectory intersects the Mun. Is this optimal?

My encounter trajectory is pictured below. From a fuel-efficiency standpoint, is it optimal for my encounter burn to intersect the Mun, then perform another burn to curve my periapsis out to a ...
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1answer
161 views

Kerbal Space Program Unmanned modules

How can I fly an unmanned module? It shows SPU:no connection when I right click on it. I have tried adding batteries, comms dts m1 on it but no luck.
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2answers
125 views

Parachute activates on launch problem

So in Kerbal Space Program Im using the MK2 Radial Mounted Parachute, attached to the side of a Science Jr. Module. The issue im facing is that at launch the parachute automatically activates causing ...
4
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1answer
247 views

Is there any way to reduce repeated science experiments?

There are many science experiments in the game that only give you part of the (remaining) value whenever you carry them out and retrieve the data. So, even if you rerun the experiment, you only get ...
4
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1answer
383 views

Can one replace/add a ship part in orbit? [duplicate]

I have a reusable ship in orbit and wish to add some parts to it (e.g. parachutes, heat shield, Mono-Fuel ...). Is it possible? Is there a mod that lets an engineer to do it?
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2answers
601 views

How can I cheat docking in Kerbal Space Program

To make things clear, I know how to and can dock, CoM thruster placing, translation, RCS build aid, 'cotrol from here' etc inclusive. I've built a multi-piece orbital station that was assembled in ...
6
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1answer
466 views

Are Fuel Cell Arrays efficient enough for mining ships?

In Kerbal Space Program I'm developing a refueling/mining network. I've got miners scattered across the stellar system, but now that I'm out on Jool's moons, I've found that solar panels aren't as ...
2
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1answer
181 views

Does an RTGs efficiency decrease?

I've got a ship with Radioisotope Thermal-electric Generators (RTG), they're the stock PB-NUK variety. When I right click on them they say "Efficiency 1.0". In reality RTGs wear out over the ...
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3answers
94 views

Does items/modules breaks or malfunction in KSP?

I've played for more than 100 hours, nothing stop working so far, but does it happen?
5
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2answers
149 views

Mounting a time-limited rescue mission for kerbal inbound to Kerbin

I have a poor kerbal who, due to poor planning by mission control (erm, me), is returning to Kerbin, but does not have sufficient fuel to enter orbit. The situation: She has 84 days of supplies ...
3
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2answers
213 views

Kerbal - Is it possible to transfer fuel with a probodobodyne OKTO in the middle?

I want to transfer fuel between two tanks while they are docked in orbit. The thing is, one of the tanks has a Probodobodyne OKTO between the docking port and the tank. I don't want to use any ...
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2answers
643 views

How to achieve Kerbin orbit without using maneuver nodes?

I'm having a very hard time to fulfill the Orbit Kerbin contract. I already saw a dozen videos of people explaining how to orbit and saw another billion texts. The problem is, when I'm in orbit, ...
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2answers
2k views

Why won't my MK16 parachute deploy?

I just started a career mode in KSP and the simplest setup fails to work. I have a RT-10 Solid Fuel booster with an Mk1 command pod on top and an Mk16 parachute at the tip. Whenever I deploy the ...
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1answer
879 views

Can't save subassembly “THE SELECTED PART IS NOT ATTACHABLE!”

When trying to save a 'science prob' (see below image), I keep getting the above message and can't save it. Action taken to produce result: Build the module (see image), drag and drop the OKTO pod to ...
3
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3answers
455 views

Do I need more than 1 Antenna / Comms / Communotron?

What might the reason for taking more than 1 Antenna into orbit / space?
2
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1answer
184 views

Maintaining control during probe atmospheric landing with RemoteTech

I've dived into unmanned exploration with RemoteTech mod for added challenge. I am at an early stage in the Career mode and my core communications constellation is 3 satellites at 700km orbit with a ...
0
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1answer
1k views

How to 'Test BACC “Thumper” Solid Fuel Booster in flight over Kerbin'?

After endless tries, how can it be achieved? Req: 5Km~14Km, 100~800 m/sec I created a craft with the device, achieved all test conditions (all is green), still I don't get the achievement. What did ...
2
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1answer
751 views

In To the Mun, Part 1, is there actually enough fuel to get to the Mun?

I'm trying to land on the Mun in the first Mun tutorial. What I find is that I can escape Kerbal orbit and intercept the Mun, then set an orbit basically going straight down into the Mun. But when I ...
2
votes
1answer
695 views

Can't make sense of launch window planner results

I've been using alexmoon's KSP Launch Window Planner to plot transfers from the Mun to Minmus, but the trajectories that I get are quite far off, and I feel like I must be doing something wrong. What ...
0
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1answer
148 views

Spaceplane speeds on Kerbin- beating 1400m/s

I'm doing my best to launch an SSTO into orbit. Currently, my primary objective is to replace my LVT-30 with an LV-909 so that I can reap the d/v rewards. Unfortunately that means pushing as high and ...
1
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1answer
143 views

How does KSP simulate objects out of focus?

I've attempted to perform a controlled aerobraking maneuver against Kerbin upper atmosphere (>55km) when returning from a moon and decided to speed things up with fast-forwarding from the Tracking ...
4
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0answers
94 views

Can a contract be written that unlocks parts?

Is it possible to write a contract that unlocks parts rather than, or in addition to, money or science? I want to make it so that, for example, to unlock a better engine you would have to prove that ...
2
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3answers
474 views

Usefulness of SSTOs and spaceplanes

There's a lot of chat about SSTOs for KSP. I recently managed to design, launch into orbit, and recover an SSTO. However I have to say that having achieved this, I don't really see what the appeal ...
3
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1answer
641 views

Is it a long term lose to transmit experiment data in KSP .23+?

We have a question that is almost the same as this one...but the question and answer both pertain to an earlier version (< .23), and note that the specific answer was to change with the newer ...
2
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2answers
219 views

How can I calculate if something can land on an atmosphere-less body?

As a part of a contract I'm bringing a surface outpost of ~10t to the surface of Minmus. I want to land that thing intact and for that I need to calculate how much engines/thrust/fuel I need on the ...
2
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2answers
581 views

Efficient solar panel placing strategy

I've built a Mun-orbiting science station to process all the experiments that I've gathered from surface and space around. Basically this is simple final-stage rocket with four 3x2 solar panels ...