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https://www.quora.com/unanswered/I-wonder-what-is-the-reference-system-in-relation-to-the-Martian-landscape-and-more-precisely-the-mountains-on-the-surface-of-this-planet-Mars https://answers.yahoo.com/question/index?qid=20180511212254AAZg1O2

Hey guys. I'm trying to plan a mission to Duna. Launch would be around day 26. Alex Moon's calculator states ejection angle 24 to prograde, delta V of 2002 m/s at phase angle of 124.11degrees. Yet when i set up a node with those parameters, I don't even get a close approach. Any advice is welcome.

Hello fellow Kerbalnauts, I'm playing on the PS4 so sadly no mods to help me calculate things for my problem. No more So I'm constructing a massive Duna ship ( think Discovery from 2001) It is being built in a 90 orbit of Kerbin. The total dry mass of the craft is 70 tons. 55.2 m in length I'm planning on using nuclear engines to power it. My question is how much fuel do I need, to leave LKO and get to Duna ( planning launch during Duna Kerban close approach) My craft has currently 3 empty Kerbodyne 7200 1 Kerbodyne 3600 and a Rockmax X200-16, all empty. Please let me know how I achieve my goal. Cheers, Gus Grizzom

So in preparation for a laythe space plane mission, I decided to fly 2 Kerbals to Duna and back as practice. Cos’ I’ve never really flown space planes before you see. Anyways I’ve been trying to land the damned thing for an hour now and Its 1:20am, but I can’t seem to make my approach any slower than 200m/s. I did bring drouge chutes, but I foolishy positioned them at the back of the plane, so deploying them causes me to nosedive. Thinking about it now, I may need to pump some fuel further back, because my plane might have became front heavy after I completed my transfer burn. But screw it, I’m going to bed now. If you have any advice it would be appreciated.

as above

I have a rocket that I want to show and ask about, but I can't get the attachment onto here. How do I upload the photo without using other sites?

So in my Sandbox I have been to the Mun and Minmus. Now I want to get to Duna, but there are so many ways, Like an Orion/Apollo style, The Martian style with a mothership, A simple giant rocket, etc. What is the Most efficient way? Or the Easiest?

Duna presents particular challenges for spaceplane design. The low gravity and thin atmosphere means that you need big wings, but once you have them, you tend to keep going forward until you drift down low enough and smack into a dune. In other words, landing can be a nerve-wracking process and it is hard to do it at all precisely. Similarly, take-off can be very dangerous as you need to build up a significant amount of speed to have enough lift to un-stick, and sufficiently flat areas for this aren't easy to find. The Brikoleur Aerospace Kombine (BAK) Zephyr solves this problem with full (Duna) VTOL capability. It carries a full science payload, a retractable solar panel for orbital use, and has reasonable crew capacity. On-surface refuelling requires the Klaw; it has an inline docking port for in-orbit refuelling. If precise positioning is not important, it's easiest and cheapest to make rocket-assisted short landings, where your hover rockets provide the lift your forward velocity doesn't. The same applies to take-offs. Craft: https://kerbalx.com/Brikoleur/Zephyr NOTE: Since the Zephyr is optimised for Duna, it is not able to even take off from Kerbin under its own power. If you want to play with it at KSC, replace the Terriers with Darts. It won't have the dV to reach orbit, but you should be able to land on the heliport at the top of the VAB. Atmospheric entry and flight to destination Set your Pe to around 10,000 m above the destination. Enter at a moderate pitch, ca. 30 degrees, and once Pe reaches the surface, control your precise landing spot with pitch (steeper = slower). Aim for a spot a few km before the target. Approach When approaching your target, slow down by making S curves or holding a steep pitch and climbing. Maintain a nose-up attitude, lower gear (which also opens the hover thruster bays), shut down the forward jets (Action 1), and start the hover jets (Action 2). You should be able to get to about 100 m/s while maintaining normal aerodynamic flight. Short landing Maintain a nose-up attitude (10-20 degrees) and gradually apply throttle to control your descent rate. Once you're down to a safe touchdown speed (recommended 40 m/s or less), lower throttle, touch down, and brake to a halt. Hover and vertical landing Pitch up sharply and apply throttle to the hover jets to kill your horizontal speed, activate RCS. Use RCS retrograde if necessary. Then switch control to up (Action 9), level out (use SAS Surface/Radial Out if necessary), control your altitude/descent rate with throttle and your horizontal vector with RCS; to move forward toggle the main jets on and off briefly (Action 1). Lower yourself to the surface by controlling throttle. Short take-off Activate both forward and hover thrusters (Action 1, Action 2), switch on RCS, apply full throttle, and pull up. Once you have enough forward speed, kill the hover thrusters (Action 2), retract gear and close the hover thruster bays, and fly yourself to orbit. Vertical take-off Activate hover thrusters (Action 2), set control point to up (Action 9), SAS to Surface/Radial out, RCS on. Then apply throttle to lift yourself off the surface. When at a sufficient altitude, activate forward thrusters (Action 1). When you have built sufficient speed, set SAS to normal mode, control forward (Action 8), RCS off, deactivate hover thrusters (Action 2), raise gear and close bays, and you're off.

Hi guys, So, I got my Kerbals to Duna, landed on it but since I'm not a huge pro, I used up all my fuel getting there, and now I have no chance of getting back up into orbit around Duna. I am entertaining the idea of not giving up on them, and since their lander has a docking port on the top, I was entertaining the idea of picking the craft up with another craft (docking essentially) and pulling them out into orbit. Would this be realistic and doable? Cheers

So I am trying to get to duna with as little delta v usage as possible. Is there an efficiënt and doable way to use gravity assists to get to duna? I know of the oberth effect (sorry if I misspelled it). I just need to know how i can do an efficiënt gravity assist to duna. thx Edit: thanks for the comments so far. But to clarify, I do not want to refuel. An idea: would it in theory be possible to get myself in a 10% slower orbit than kerbin and then use a kerbin gravity assist. And would this even be feasable .

Hi, Using the oft-recommended KSP Launch Window Planner (http://alexmoon.github.io/ksp/), I'm attempting to set up a mission that will take a very aggressive (totally non-Hohmann) transfer to Duna. The idea is to shave time off the transfer (and depart a good ~80-100 days before the planets are "ideally" aligned) by spending a lot more delta-v than would be "optimal". I'm about to unlock the ISRU converter and build out a Mun mining base with Extraplanetary Launchpads, so my thinking is "fuel is cheaper than time". (I don't want to time-warp through the long coast because I've got lots of contracts and station stuff to keep me busy in the meantime back in the Kerbin system.) I've built a ship with about 5300 m/s of delta-v, and have been doing dry runs of the mission in a sandbox save. Figuring I could use aerocapture to avoid the most expensive part of the trip (the braking burn at Duna periapsis to get into orbit), I put almost all of the delta-v (5000 m/s) into the ejection burn from Kerbin and used the rest to fine-tune my approach, getting a ~13km Duna periapsis on the flyby, which I've read should be enough to aerocapture. However, my best-laid plans were shattered when I actually hit the atmosphere and my entire ship burned up almost instantly. :-) In retrospect this shouldn't have been a surprise, since the navball told me my orbital speed was well over 8000 m/s when I hit the atmosphere. (Yeah, this was probably a terrible idea.) So I tweaked the design and practiced a few more aerocaptures. I found that if I use the engines to brake down to an orbital speed of 2600 m/s when I hit the atmosphere, my design can survive (even without any heatshields). But that needed a lot of delta-v, and the rocket was getting ridiculously huge; I wanted to do better. So I slapped one of the big 10m (stock) inflatable heatshields on the bottom of my lander and tried again. However, it still burned up almost instantly. It's like the heatshield wasn't even there. :-( (In fairness, some non-critical bits of the lander were clipping through the bottom of the heatshield, but if that were the only problem, I'd expect everything behind the heatshield to survive.) What am I missing here? I was sure the heatshield would solve the problem, because I've seen a Scott Manley video where he was playing RSS and aerobraked at 10 km/s on Earth coming back from a lunar free-return; surely 8 km/s at Duna should be easier??? Thanks. :-)

I watched @Matt Lowne's Hard Mode submission for the Reddit Roads to Duna challenge and wondered if I could do the same thing with a space plane. And not just launching the same space plane five times, but launching that thing once, and servicing it at each landing. Channeling my inner @Cupcake..., I came up with this. I'm still uploading as I post this and I have two copyright disputes to submit, so please bear with any delays. Matt's the trail blazer though; the module design is almost all his. But think about what that crew has to do each time you hit that Launch button. Not to mention @Thrimm's original LTS Kestrel design made this possible. Remarkably, after recovering all support craft and crew, the mission cost less than the space plane used to send it up there. But I'd rather not spend four days of off-time making another one of these... where does Cupcake Landers get the time to do these?

Brief This thread will tell the tale of the brave four kerbals that traveled to Duna with kerbalism. The Kerbal Space Agency has mastered the Kerbin system and with regular flights to Mercury Station in LKO and Atlantis Base on the Mun the time is right to go out in the great void and travel to the red planet. Will they make it? or will they die in the process? So far only one kerbal died on the moon when the fission reactor of the Atlas 4 roving lab collided with the terrain, but there were many near misses. Time will tell if they are prepared enough. I will update during the mission and it will be picture heavy. Contents 1.) The dawn of the Odyssey 2.) Some assembly required 3.) Arrival and farewell presents 4.) The chosen ones 5.) The bucket of bolts 6.) The Magic Carpet Ride 7.) Return of the Falcon and the great silence 8.) The Great Abyss 9.) The kiss of the Dunatian 10.) The ride of the stung bull 11.) First flags 12.) The face of Duna 13.) Snowstorms 14.) A sparkle in the sky 15.) Household chores 16.) Flight of the red dragon 17.) The unexpected detour 18.) A hike on Ike 19.) Up, up and away 20.) The return 21.) Epilogue

I've been meaning to go to Duna for a while now. I made a custom flag and sent several probes, but never got around to sending any kerbals. But the other day I was watching some Statzenblitz videos and thought to myself, 'Screw it, I'm going to Duna." After about 5 minutes of work, I had a Duna ship. There was some krakening with the launcher, but after a revision and turning on autostrut, everything was just fine. I originally kept the booster leftovers on the ship for extra delta owV, but when I switched back to the ship, they krakened out, so I ejected them. After waiting in orbit for a year and a half, the ship leaves for Duna. The ship on the edge of Duna's SOI. After a braking burn and some circularization, the ship was left in a 160km orbit, and the lander was detached from the ship. It was here that I realized the heat shield obstructed the lander's engine. It was promptly dumped. I remembered the parachutes! They slowed the lander down to 20m/s. The landing went smoothly. Success! Also, I forgot Jeb. The kerbals ascend. The lander returns to the transfer ship. Here, leftover liquid fuel was transferred to the transfer ship. The lander was then abandoned. The ship leaves Duna for Kerbin Burning to slow down. The re-entry periapsis was 35 km. Later, the Kerbal Space Program would face lawsuits for improper disposal of nuclear material. I remembered the parachutes again! Mandatory after-flight shot. Total mission time was about 3 years. Destiny fulfilled.

DADV-1. (Ver 1.1) 4 seat Duna Ascent & Descent Vehicle. Can be used in conjuction with the DBC01(Duna Base Camp) space station to land to the surface of Duna and return to orbit, refuel and repeat. Features a habitation module and a science lab. It is recomended you use the HOYO docking port which fits the DADV nose cone. Find it here. Included is a decoupler that can be used to attach the ship to the AresV LonesomeRobots rocket so you can put the ship to orbit and send it to Duna. Find it here. Alternatively it will fit any 7.75m rocket. For the IVA players, in order for the huge helmets to fit the interior, the default pilot/co pilot views are pretty low. If you want a better view click on the front windows. Same applies for the Habitation module views. I tried several approaches to emulate the elevator but nothing worked. If anyone has any suggestions please PM me and i will credit you for your help. Please suggest any improvements you may have in mind for the mod. This mod comes bundled with dependencies. Module Manager, TexturesUnlimited (For Reflections), RasterPropMonitor (For functional interior), KSPWheel (For the landing legs. It is absolutely needed for the landing legs to work.), ASET Props 1.5 & ASET Avionics 2.1, TDProps 1.1.1. INSTALLATION Be careful, this mod comes bundled with the latest version of ASET Props (1.5) & ASET Avionics (2.1). Delete these mods if you have older versions before installing this mod. Unzip and merge with your GameData folder. The folder GameData/LonesomeRobots from the zip must be merged with, not replace, any existing GameData/LonesomeRobots folder. DOWNLOAD https://spacedock.info/mod/1602/DADV-1. LonesomeRobots Aerospace .craft files for all LRAERO ships can be found here . These are saved from KSP 1.3.1. Licensing. This mod is licensed under: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License Redistributed with this mod. RasterPropMonitor created by Mihara & MOARdV. Redistributed as per license. TexturesUnlimited created by Shadowmage. Redistributed as per license. ModuleManager created by Sarbian. Redistributed as per license. KSPWheel created by Shadowmage. Redistributed as per license. ASET Props 1.5 & ASET Avionics 2.1 created by Alexustas. Redistributed as per license. TDProps 1.1.1 created by TiktaalikDreaming. Redistributed as per license. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ DADV-1. (Ver 1.0) 4 seat Duna Ascent & Descent Vehicle. Can be used in conjuction with a space station to land to the surface of Duna and return to orbit, refuel and repeat. DBC01 (Duna Base Camp) space station is in the works and will be the next release. Features a habitation module and a science lab. It is recomended you use the HOYO docking port which fits the DADV nose cone. Find it here. Included is a decoupler that can be used to attach the ship to the AresV LonesomeRobots rocket so you can put the ship to orbit and send it to Duna. Find it here. Alternatively it will fit any 7.75m rocket. For the IVA players, in order for the huge helmets to fit the interior, the default pilot/co pilot views are pretty low. If you want a better view click on the front windows. Same applies for the Habitation module views. I tried several approaches to emulate the elevator but nothing worked. If anyone has any suggestions please PM me and i will credit you for your help. Please suggest any improvements you may have in mind for the mod. This mod comes bundled with dependencies. Module Manager, TextureReplacer (For Reflections), RasterPropMonitor (For functional interior), KSPWheel (For the landing legs. It is absolutely needed for the landing legs to work.), ASET Props 1.5 & ASET Avionics 2.1, TDProps 1.1. INSTALLATION Be careful, this mod comes bundled with the latest version of ASET Props (1.5) & ASET Avionics (2.1). Delete these mods if you have older versions before installing this mod. Unzip and merge with your GameData folder. The folder GameData/LonesomeRobots from the zip must be merged with, not replace, any existing GameData/LonesomeRobots folder. DOWNLOAD https://spacedock.info/mod/1602/DADV-1. LonesomeRobots Aerospace .craft files for all LRAERO ships can be found here . These are saved from KSP 1.3.1. Licensing. This mod is licensed under: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License Redistributed with this mod. RasterPropMonitor created by Mihara & MOARdV. Redistributed as per license. TextureReplacer created by ducakar. Redistributed as per license. ModuleManager created by Sarbian. Redistributed as per license. KSPWheel created by Shadowmage. Redistributed as per license. ASET Props 1.5 & ASET Avionics 2.1 created by Alexustas. Redistributed as per license. TDProps 1.1 created by TiktaalikDreaming. Redistributed as per license. Screenshots Cockpit Habitation module Science lab and airlock

Preamble. Good morning all. I have an idea for a collaborative story, a format that has worked on another game forum I spend some time on, and I am curious what those who value "story" here would think about it. The general premise is that "my" KSP is ready to attempt a manned (balled? no, can't do it) Duna flight, but that some major decisions need to be made about the program and a "proceed" call made. It strikes me as a moment in my game's history when some artistic drama could occur. So what I am asking here is if anyone would be interested in participating. What I envision is writing up a "history" of things to get the story to this point, then lay-out the present situation by having a main character (probably Gene) give a presentation and then open the floor for discussion. Other writers would then "introduce" their characters at the meeting, and we would all weigh in on the topic and debate. Eventually the meeting would conclude, and I would then "pay-off" everyone's participation by chronicling the ensuing mission(s). At this point I am only proposing this as a possible story- it will depend both on feedback and health (a faint concern), but at the moment I feel highly inclined to proceed. First post would probably be next week. So, would anyone be interested? (For what its worth, the following event occured in the same game, and would be part of the discussion's history;)

So since I've started playing I've somehow never launched a proper mission to other planets (other than the odd probe). I got back into KSP a while ago thanks to adding a pile of mods that add the depth I was after (mainly everything and anything USI and Near Future) and I've now decided that a massive mission to Duna sounds like a plan to step up from my multiple 20 kerbal colonies on the Mun and Minmus. Currently I'm figuring something along the idea of a Martian style mission - probe dropped supplies ahead of the mission with a minimum duration on the surface of 30 days (just cause). Basically this all boils to a rather simple question - assuming the stock solar system - roughly how long sounds like a good budget for life support supplies / habitation? I reckon I need to allow at least 300 days for the transfer there plus surface mission time (30 days) but when is the best launch window for return? Is this going to be the expeditionary mission I'm planning on or should Jeb and co be planning for a year or more sat there?

Hi everyone! I just wanted to share my latest and best creation, real life Lockheed Martin's Mars Base Camp. For those of you who don't know what it is, I recommend you watch this video: https://www.youtube.com/watch?v=vLpZUMfIJX0&t=72s You can watch more of my content on my YouTube channel: https://www.youtube.com/channel/UCdCcDVpmo_ZRyYNObtKZhfA I had to use many mods (really, MANY mods), so many that I don't even remember which ones are needed for this vessel, I even had to modify some to change part sizes so I can't provide a download link because it would be useless. Nevertheless, enjoy the photos and please let me know what you think! Mars Base Camp was just finished around the Moon Mars Base camp arrived on Mars and Ronie Kerman is enjoying the spacewalk I kind of invented how the Martian lunar exploration may work based on the images provided by Lockheed Martin, I hope I got it right. Dammit, a micrometeorite just hit the fuel tanks, let’s check them… We may not be landing on Mars yet, but we are not leaving before a visit to Deimos Ronie is eager to collect some surface samples We descend during a beautiful Martian eclipse And we start the exploration of a small new world Good news, astronauts just got back from their mission with a lot of valuable data Time flies, we’ve already spent a year on the Martian system and we have to leave, but don’t you think this is all, the next time we come here it will be to land. It feels great to orbit your own giant piece of dead rock again Astronauts undock the Orion from the Mars Base Camp The crew prepares for a safe ride home I hope you liked it, it was quite a lot of work (and the damm thing wanted to keep blowing up and falling appart) haha.

Shocked no one has done this yet...but glad, because I wanted to be the one to do it. I'm sure most of us have seen Elon Musk's 2017 IAC presentation, which raises the bar (even though that "bar" is somewhat smaller) tremendously over the 2016 version of BFR/ITS/MCT. If anyone hasn't had a chance to see it, I highly recommend checking it out: What's the challenge? Build the 2017 version of the BFR, of course. Specifically: Build a large two-stage fully-reusable launch system capable of propulsive landings on Duna, Kerbin, and the Mun. It must be capable of in-orbit propellant transfer and needs to be able to deliver substantial payload (at least 20 kerbals, or a fully-functioning autonomous ISRU unit) to Duna. No nukes, ions, jets, rolling landings, or parachutes. Tweakscale is the only allowed part mod for engines and tanks. Once you've demonstrated proof of concept with a single launch, subsequent launches (for refueling, etc.) may use the debug menu to get into orbit. You can also use Unbreakable Joints and No Crash Damage as long as your landings are under 5 m/s. The scoring system is designed so that the closer you make your version to the one revealed by Musk, the more points you get. I may add additional ways of earning points as the challenge progresses, but I'll try to keep it balanced. Scoring: Basic challenge (two-stage, reusable, propulsive landings on Duna, Kerbin, and the Mun): 5,000 points Booster executes RTLS: 200 points Dedicated propellant transfer ports in tail: 50 points Single-stage to Mun and back to Kerbin after Kerbin orbit refueling: 600 points Demonstrate single-stage return from Duna to Kerbin after Duna ISRU: 800 points Six engines on second stage: 60 points Thirty-one engines on first stage: 31 points No reaction wheels: 200 points No monoprop (Vernor engine RCS only): 175 points Booster lands in launch cradle: 650 points Delta wings on second stage: 85 points Dedicated crew vehicle, cargo vehicle, tanker: 400 points Ties are broken by total upper stage dry mass, the lighter, the better.

Hey guys! So I'm back from a long break, and I have this question begging to get answered: I see large rigs like the stock Crater Crawler, and I wonder to myself, how the heck do you deploy something that huge? It doesn't fit the biggest fairings available, so what gives It's not even assembled in LKO, there's no docking seams! So tell me: how do you (in vanilla KSP) get something really huge up there and working?

Hi Got a ore and spacestation ship enroute duna. Is it better to have them both on ike , since a launch from duna costs alot of dV.?

So my ships have sailed and on their way to duna, i just love this game. 2 Big Ra-100 polar elliptical orbit as high as i can get. 3 Ra-2 equatorial orbit. The 2 first are now in place , but i was planning to get the 3 in equatorial in geostationary orbit 2.880.000m , but ike is in the path. So tried 4.000.000m but still ike influence. Better to go below ike or even higher ? what are your altitudes on equatorial orbits duna. Second question , i have a space station and a ore craft on the way to duna. Is it better to have them both on ike , since a launch from duna costs alot of dV.?

The Red Planet has captured the imaginations of space pioneers ever since the first days of high-powered rocketry. There's a long and auspicious list of proposed Mars missions, dating all the way back to Werner Von Braun's wildly optimistic plan to use over 400 launches to construct a massive artificial-gravity space station for Mars colonization transport. Any of us who have played KSP for a while can probably put a single-launch mission of arbitrary size on Duna easily enough, because Moar Boosters. However, the real world doesn't work like that. You can't just add more boosters; typically, mission planners have to work within the capabilities of existing (or planned) launch vehicles, which can only throw a certain amount of mass into orbit at once. As a result, most of the proposed Mars mission plans involved some degree of in-orbit assembly. The challenge is to design and execute a flags-and-footprints Mars mission with the lowest-massing payload per launch. You can assemble your mission using up to five separate launches; the goal is to make each of those orbital payloads as small as possible. There is no bonus for using fewer than five launches. For example, if you use four orbital payloads massing 8 tonnes, 12 tonnes, 6 tonnes, and 9 tonnes, then your score is 12 tonnes. If you use three orbital payloads massing 4 tonnes, 7 tonnes, and 14 tonnes, then your score is 14 tonnes, even though you did it in fewer launches with lower total mass. Obviously, lowest score wins. Thus, the incentive is to make all the launches roughly the same size in order to maximize the amount of mass you get into orbit while minimizing the size of any one launch, just like real-life mission planning requires you to work within the payload capacities of existing launch vehicles. This will require clever planning, so think ahead! A few rules to keep things more true-to-life: You can use whatever mission architecture you want, but it needs to have at least three Kerbals delivered to Duna orbit and at least two delivered to the surface. Crew must be sent up in the final launch from Kerbin. The transfer and lander (or whatever you use) must have actual crew space. It's fine to use command seats for rovers or for a separately-landed ascent vehicle. On-orbit payload is anything that goes with you toward Duna. If your upper stage is jettisoned after reaching LKO, then it's part of your launch vehicle, not your payload. If you refuel the upper stage to use for your transfer burn, then it's part of your payload. Assembly in LKO means assembly between 70 and 200 km. No ions except for unmanned probes, and then only for orbital adjustments (e.g., no spiraling out over the course of months). If you want to use nukes, you can do so, but only before leaving Kerbin's SOI. NERVAs can't be reliably restarted after a long period of time. ISRU can be used, but with some restrictions: Astronauts can't wait forever for ISRU, so if you manufacture your own fuel and oxidizer, you'll need to send an unmanned ISRU unit ahead of time. If you bring your own liquid fuel and only want to manufacture oxidizer, it's fine to have the ISRU unit on the manned lander (it's considered feasible to do this for Mars missions since cracking LOX out of the Martian atmosphere is straightforward). If you take this route, you can turn on infinite fuel when you activate your Convert-O-Tron (no need to use a drill). If the ascent vehicle lands on Duna separately from the landing craft, then you must bring a rover or other vehicle to take your crew from the lander to the ascent vehicle; no hundred-mile treks. You can earn bonuses to improve your score: On Tongues of Fire. Use no chutes; propulsive landings on both Duna and Kerbin. 10% decrease in highest payload mass. Conflicts with Wing It. Wing It. Winged, rolling landings on Duna and Kerbin. 5% decrease in highest payload mass. Conflicts with On Tongues of Fire. Old School. No nukes or ions. 3% decrease in highest payload mass. Brute Force. Assemble a Direct Ascent vehicle in LKO; no ISRU, no propellant transfer, no Duna orbit rendezvous. 12% decrease in highest payload mass. Conflicts with Loop the Loop & Justin Case. Slow Climb. Put ladders on your vehicles, if necessary, so you don't have to jetpack around on the Duna surface. 4% decrease in highest payload mass. Elon Style. Make the whole system fully reusable without using nukes, ions, or airbreathers. 25% decrease in highest payload mass. Conflicts with Justin Case & A Solid Plan. Stayin' Alive. Bring extra living space (at least one extra seat per Kerbal) for the transfer to and from Duna. 18% decrease in highest payload mass. Loop The Loop. Make your transfer vehicle a fully-reusable solution that can brake back into Kerbin orbit and be used again for the next trip. 15% decrease in highest payload mass. Conflicts with Brute Force. Consistency, Good Sir. Make all of your launches with the exact same launch vehicle. 6% decrease in highest payload mass. Justin Case. (NEW) Provide your crew with a separately-landed ascent vehicle as a reliable way to get off Duna (inspired by The Martian). 18% decrease in highest payload mass. Conflicts with Brute Force & Elon Style. A Solid Plan. (NEW) Make the Duna Ascent Vehicle (whether separately-landed or not) solid-fueled to orbit. 9% decrease in highest payload mass. Conflicts with Elon Style. They See Me Rollin'. (NEW) Bring a rover for your crew to get around Duna. 15% decrease in highest payload mass. If you find you need more than five launches, that's fine, but you'll have to assess a 15% penalty for each additional launch to represent the added real-life cost of adding an additional launch contract. There is not, however, a bonus for doing it in fewer than five launches. No part mods for the actual Duna package, although you can use part mods for your launch vehicle if you like. I may continue to add additional bonuses to enable increasingly-lower scores as the challenge goes on. Good luck! Smallcraft Leaderboard: Largecraft Leaderboard (20+ kerbals): Differences: Entries must have 20 or more kerbals. At least 2/3 of your crew must land on Duna. Stayin' Alive only requires that you have one extra seat for every 2 kerbals. You divide your total score (after bonuses) by half the total number of kerbals you take.

I want sent probe into EVE and make it burn up in it's atmosphere, collecting science (or soft land but maybe later) It was long time since i make mission to other planets in KSP, i one time ploted perfect course but forgot to add good relay antena to probe so i lost contract i just wonder does this website is still reliable for calculating transfer? http://ksp.olex.biz/ I just want do it by myself not using Kerbal Engineer or MechJeb (maybe for planet angle but only for this)

I currently am orbiting Duna with a probe containing several DMagic Science experiments. When i arrived on Duna i forgot to calculate how far Kerbin would be, so i cheated to extend the antenna's range. It communicates fine, but i cannot transmit science. i tried reloading but still nothing. [EDIT]-I fixed the issue by completely restarting the game.