mhoram

KSP is an inspiration for young people, who will enrich scientific generations to come. Thank you Felipe for initiating and designing more than a game!

Dont know ... asparagus staging is an already widely used phrase for this kind of staging. Rebranding it in this thread will probably not change its usage and might confuse others who read this.

In addition to what @5thHorseman said, which covers the ideal departing method you can lower the amount of fuel needed by departing from Kerbin while Mohos Periapsis is exactly on the opposite side of the Sun: Your Kerbin-Moho transfer orbit has a Periapsis that touches the orbit of Moho, and an Apoapsis that touches the orbit of Kerbin. Since the Orbit of Moho has a strong eccentricity (Periapsis ~4.2e9m, Apoapsis ~6.3e9m), it matters quite a lot where you meet Moho. The nearer you meet Moho at it's Periapsis, the less fuel you need. When using this method you will probably not meet Moho the first time you reach Mohos Orbit, but you can decelerate at Mohos Orbit Periapsis, so that your transfer-orbit gets smaller and adjust it so that one orbit later you meet Moho. To explain this effect, you need to consider the Kerbin-departure-burn and the Moho-circularization-burn. The departure burn costs more the lower you push your transfer orbit Periapsis (reaching Moho at it's Periapsis ist more expensive that reaching Moho at it's Apoapsis) The circularization burn costs more the farther you are away from the Sun, which is caused by the Oberth effect. And the second effect seems to have a larger impact than the first effect. During my tests with simple transfer paths, the DV-difference was about 100 m/s between the two extremes (meeting Moho at it's Periapsis vs meeting Moho at it's Apoapsis). However using the method mentioned by 5thHorseman the difference should be larger.

This question pops up time and again. Here is a nice thread explaining different ways to understand Delta-V: It is probably best to read that thread sorted by date, since it was from before the forum change.

They are explained here: http://forum.kerbalspaceprogram.com/index.php?/topic/11297-different-conic-drawing-modes/ How to set them is explained in one of the replies.

The Landing Fuel Usage Law: Let a0 be the altitude of a ship S0 situated at the surface of a planet. And let a1 be the altitude of of a ship S1 trying to land at the same location as S0. Then the amount of Delta-V v needed to perform the landing maneuver depends on the altitude of both ships and a constant positive scalar ε > 0 which depends on the skill of the pilot: v(a0, a1) := (abs(a1-a0) + ε * 1m) / 1s (A) Corollary: "You did not pack enough fuel to land safely" Assumption 1: The ship you are trying to land has a finite amount of Delta-V available. (Proof by stating a fact ... or experimentation ... your choice. Please notify me if you found a way around this in real life or make a bugreport to Squad if you found a way around this in KSP without using cheats) For the proof of the corollary we investigate the three cases a0 > a1, a0 = a1 and a0 < a1. and prove that in each case the corollary is true. Case a0 < a1: In this case the ship is not landed, so you will need more fuel for landing Case a0 = a1: In this case the amount of Delta-V needed to land, is according to (A): v(a0, a1) = ε m/s > 0 m/s Let f be the amount of Delta-V the ship has left. If f < ε m/s, then you don't have enough fuel to land. If f >= ε m/s, then you will need need at least ε m/s for landing and you will need to repeat this step with (f - ε m/s) < f fuel left. Since according to Assumption 1, f is finite, after f / (ε m/s) iterations you run into the case f < ε m/s, where you do not have enough fuel. Case a0 > a1: You crashed and did not land safely. Q.E.D.

I had the same thought, when RoverDude explained the changes some time ago: http://forum.kerbalspaceprogram.com/index.php?/topic/105202-105-usi-life-support-020-20151229/&do=findComment&comment=2170149 Also worth reading is his response in the post after that one.

Nice work! There are a few details however that you don't take into account: how many Kerbals can you support with that setup and the duration of the trip. A while back I investigated these things.

One argument I have not yet seen in this thread. Moving the fuel from one tank to another has an influence on structure of the tanks, meaning the tanks change the direction they are facing. When engines are mounted on the bottom of the tanks, the direction, they exhaust to, is changed. So unrelated to the question whether the fuel flow alone has an impact on the rotation of the rocket, the fuel-flow has indirectly an influence on the direction, the rocket is accellerating, meaning the shift of the engines could also cause the rocket to rotate.

Cool stuff & Welcome to the forum! You might also be interested in: http://forum.kerbalspaceprogram.com/index.php?/topic/65508-jebretary-automatic-version-control-backups-for-craft-and-saves-v040/ http://forum.kerbalspaceprogram.com/index.php?/topic/60129-023-gitcraft-v09b2-craft-revision-management-using-git/

The original up goer 5 comic is from November 2012 and the "You Will Not Go To Space Today" thread is from April 2013, so it is rather the other way round and the phrase came from XKCD to KSP.

My first guess would be Jool.

Take the velocity after you get into the SOI of the Mun. The larger this velocity is, the less the gravity of the Mun will bend your flightpath. In order to do "a loop around the [mun]" (which I interpret as leaving the Mun's SOI in the opposite direction of entering it) you should have a minimal velocity (near to 0 after entering the Mun's SOI. For this the mentioned velocity "1625 relative to the Mun" is way to much. Also 2ve is the maximal velocity change, that can be reached, but it is not guaranteed that you get that in a gravity assist. I also doubt, that it would be realistic that in the given setting the satellite would make "a loop around the earth". As a further info: Gravity assists not only change the velocity vector, but also the altitude of where you enter Mun's SOI is different from the altitude where you exit Mun's SOI.

Previously this Subforum contained at least two kinds of threads: questions with answers discussions about game mechanics Best way would be in my opinion to keep the questions in here and to start new discussions in another subforum. For the lack of subforum that now handles gameplay mechanic discussion, General discussion seems to be the best option for that.

To the left of the thread-title there is a blue circle or star. Click on that.

Somehow I am missing Serenity/Firefly in the list.

It seems like my question was missed in this fast moving thread: Thanks!

From what I saw, all my subscriptions were after the automatic migration to the new forum set to "Do not send me any notifications". So I assume that the subscriptions of the other forum users were also set to not send notifications.

Have a look here for the mentioned tool: http://forum.kerbalspaceprogram.com/index.php?/topic/73174-win-flyby-finder-v082-ksp104/

Thanks for letting us know. Is it possible to retreive a list of the threads that I had a subscription for in the old forum?

Quick question about the new "follow" mechanic. I saw that my subscriptions to threads of the old forum were ported to the new forum. After I have updated the settings to get my daily notifications, now all the subscriptions seem to be lost and gone: On my "Manage Followed Content" page I only get a "There's nothing here yet" text. Is there an easy way to recreate my list of followed threads or is that something temporary that will get sorted out by itself?

With the forum migration to IPS 4 the previously available blog section disappeared. For a lack of a more fitting subforum and based on a recommendation from Red Iron Crown, I reposted my linkcollection blog here in the tutorial section. Please refrain from suggesting new links. (originally created 24th November 2013) (3072 Views) Collection of useful links ... at least for me. General The Drawing Board: A library of tutorials and other useful information Kerbal Academy Different Conic drawing modes Collected Tools and Cheat Sheets to Help Make Your Rocket Kerbal-Proof Centripetal vs centrifugal explanation Forum-Support for Latex petition Kerbonaut Leveling-Experience Minimum altitudes for each warp level Handy/interesting graphs/charts Kerbal Maps (Forum) Explanation of the "Max physics delta-time per frame" Building Stuff Basic Aircraft Design - Explained Simply, With Pictures Basic Mk2 Spaceplane Guide Multi Stage Rocket Design Staging Methods Overview The "reverse rocket equation" explained NASA Beginner's Guide to Rockets KSP Optimal Rocket Calculator (forum) / Old Version (forum) Antenna Range Diagram Optimal Engine Charts with DLC (forum) (Pre 1.0 version by tavert) Air Intakes Orbital Mechanics http://www.braeunig.us/space/ Orbit Resonance Timing (forum) Oberth effect Oberht effect and Gravity Assists Oberth Effect detailed Discussion How much dV do you lose with a higher LKO really? Gravity Assists explained in a few pictures Setup Gravity Assists Apoapsis plane change manoeuvre Δv Efficient 90° Plane changes Orbit darkness time Gravity Assists in the real world LKO and then hohmann to final orbit vs. straight to final orbit Setting up an Earth-Moon Aldrin Cycler Atmospheric Stuff Overhauls for 1.0 Great New Physics Thread Understanding the drag box format Nose Cone Experiments KSP floatCurves and you - the magic of tangents On the particulars of drag in 1.0.4 The drag of parts Payload Fairing Comparison V0.22 Ascent & Descent Optimization RAPIER + Nerv SSTO Mini Guide Aerobraking Calculator (forum ) (forum) Fuel consumption as a function of atmospheric pressure KSP Parachute Calculator (2016) A handy chart for Aerocapture at Jool (pre v1.0) Calculating Drag and Lift (pre v1.0) I need someone help me do some math for launch optimization Finding the best ascent path for rockets Ascent Optimization as an Optimal Policy Problem Mini-challenge: max altitude with this supplied spacecraft V0.16 Launch Efficiency Exercise V0.21.1 Efficient landing Reverse gravity turn landing technique for airless bodies Delta-V Budget What Is Delta V Cheat Sheet WIki Delta-V needed to escape Kerbins SOI from a circular orbit - with two burns - when to use two burns Calculating interplanetary delta-v Maximum possible dV for a single stage Delta-V Maps Community Delta-V Map A more accurate delta-v map Orbital / Planetary Information and Delta V Chart Delta-V map System Delta-V Maps by JellyCubes V0.18.4 [Request] Delta-V-maps (incomplete) A Delta-V Map for simple flightpaths Interplanetary Transfer Online Calculator for Trajectories with Multiple Gravity Assists (forum) KSP Lead angle calculator KSP Planetary Transfer Quick Reference Chart (forum) KSP Trajectory Optimization Tool Interactive illustrated interplanetary guide and calculator for KSP Launch Window Planner (forum) Science Finction Space Fun Size Comparison - Science Fiction Spaceships Real Life Space Fun J002E3 Yarkovsky effect Lego Kraken Challenges BSC: Albatross 3 Cost-Effective Lifters Challenge V0.24's Delta-V Maximization Challenge V0.22 - 0.23.0 Goddard-Problem: Maximal launch altitude Challenge V1.0.4 (FTOTM) Kerbal Energy Crisis challenge Payload Fraction Challenge V0.22 - 0.23.0 The Versatility Marathon Challenge Own Crafts The Cathedral Giant Gigantor - the bit larger solar panel structure The Headlander - land a plane on "the other side" Lin Core Lin Core 2 - a space station Lopac Lifter Family - Low Partcount Lifters V0.90 Tangent Rockets - 16% Payload Fraction Lifters V0.23 Tangent Rockets - Second Generation - 18% Payload Fraction Lifters V0.23 Tuggy - stackable RCS fueled unmanned Tug USI Mun Base Interesting Crafts Cygnus family : Recoverable SSTO Rockets from 15 to 300 tons V1.0.4 Ekku Zakku - Ensoku Largest ship you've launched into Orbit What's the Largest Rocket you've ever built AddOns Must have Game Enhancement Editor Extensions Redux Kerbal Alarm Clock Kerbal Engineer Redux Kerbal Wind Tunnel PreciseNode / PreciseManeuver RCS Build Aid Trajectories: atmospheric predictions Good additional Gamecontent Final Frontier Modular Kolonization System (MKS) Principia N-Body-Physics Good Game Enhancement BetterBurnTime kOS Scriptable Autopilot System MOAR [x] Science! - KSP Science report and checklist TAC Fuel Balancer Transfer Window Planner Nice to try Civilian Population Ferram Aerospace Research Protractor - Rendezvous Plugin SCANsat Snarkiverse meets Principia Outdated Jebretary - Automatic Version Control (backups) for craft and saves MapResourceOverlay for ORS PartArranger GitCraft .craft revision management using Git Various CKAN Community Database of Module Manager Patches for Stock KSP Community Mods and Plugins Library Flyby Finder ModuleManager Documentation Life Support - Discussion and Comparison Sigma Cartographer Documentation AddOn Creation Modding Information Mod Development Links Compilation KSP API Beginners Part Modding Tutorial Part Modelling Guidelines Multiple docking nodes on the same part Kerbal Space Program Modeling Tutorial Port Sizes How do Textures work with KSP TacExamples Unity Tutorial Rigging My Creations Trackingstation Ambientlight Aptor - An Autopilot System based on Psopt (unfinished) Ascent Optimizer Software AddOns Kramax Plugin Reload: plugin development tool for rapid prototyping Tutorials Gravity assists in 4 pictures Physics of KSP (FTOTM) How to use a warp drive efficiently Warp Drive Maneuvers

[quote name='diomedea']Full Latex support isn't present currently. It may come later, as additional features will certainly be added. But please know a project to add Latex to this forum (vB4) was already in development more than one year ago, and ultimately was shelved (believe the benefits were not considered as good against the added complication and admin burden). Let's hope for IPS4, Latex could be a simpler addition to make.[/QUOTE] Thanks for answering my question.

Looking forward to the change. Will the new forum support LaTeX? See the [URL="http://forum.kerbalspaceprogram.com/threads/77543-Latex-petition"]LaTeX-Petition[/URL] for reference.

You might want to have a look at this tool: [url]http://forum.kerbalspaceprogram.com/threads/80978-WIN-Flyby-Finder-V0-82-KSP1-04[/url] There is also a version for RSS referenced in that OP.