mhoram

The physics of KSP is a complex story and who doesn't want a guide that explains the details about it? Information is distributed over many Wiki-Pages and Forum/Reddit-Threads. I think it is beneficial to have a place where information about all physical aspects of KSP is gathered. You can get the description of KSP Physics as a PDF here. Be advised that this contains a lot of Science and is not for the faint of heart. Edit: This documentation is partially outdated. Especially the atmosphere, drag and engines have been overhauled on the V1.0 KSP release, so these sections do not apply anymore.

The pressure at an altitude is calculated via the following: Each planet has two defining factors for the atmosphere. For Kerbin these are: - Scale height (in Meter): 5000m - Pressure at sealevel (in atm): 1 atm For other planets these values are available on their wiki-pages. You can calculate the pressure within the atmosphere at an altitude of lets say 13km above sealevel by: pressureKerbin(Altitude) = Pressure_At_Sealevel * exp(-Altitude / Scale_Height_Kerbin) pressureKerbin(13km) = 1 atm * exp(-13km / 5km) ~ 0.07427358 atm (more physics stuff here)

A while back there was a discussion about ideal altitudes for refuelling stations with some charts. See http://forum.kerbalspaceprogram.com/threads/75542?p=1072850&viewfull=1#post1072850 and following posts.

Genious! This mod should be listed here: http://forum.kerbalspaceprogram.com/threads/55401-Community-Mods-and-Plugins-Library

My Endeavour with USI Kolonization Systems - Building a Mun Base.

There are several mods out there that introduce new resources. With an increasing number of resources, TAC fuel balancer gets a bit bothersome to use, because the resource selection happens in a randomly ordered list that needs to be navigated with a horizontal scroll bar. I would like to suggest the following changes: - Display the resources in an alphabetical order so they can be found in a predictable manner - Remove the horizontal scrollbar and dispay all resourcenames at once in multiple lines

This looks like a must-have addon. Trying it out right now. Edit: yes, a mod I don't want to live without anymore. small idea: - make rearranging via Drag-and-Drop possible

This mod looks great. two small ideas: - the toolbar icon should not open the configuration window, but toggle its visibility - make the low ppm cutoff value not global but per resource configurable

That is great to hear - thanks. Perhaps include also an option to display it during flight.

Part 3 of http://forum.kerbalspaceprogram.com/threads/54294-Gravity-Assists could be interesting for this problem. My approach would be to send the satellite at a time so that it arrives at Eve while Eve is in the plane of the target orbit so that you can use the gravity assist to change the inclination. Until such an Kerbin-Eve-Constellation is available, it could take a few ingame-years. Currently I have a contract for a Kerbol stationary orbit with an inclination of ~40° and decided to not use Eve for a gravitational assist.

I believe you misunderstand the map. 22.000 m/s is needed for the transfer between Low-Jool-Orbit and Jool-Ground. But since Jool has an atmosphere, landing is much cheaper. However due to Game Engine restrictions do not expect to survive a landing on Jool. In order to bring a ship from Low-Kerbin-Orbit to Low-Jool-Orbit, much less Delta-V is needed according to the map: around 4900 m/s if you don't use aerobraking and gravity assists. And this should be doable without refuelling and even with a reasonably small ship.

Pick yor poison ;-) A more accurate delta-v map http://wiki.kerbalspaceprogram.com/wiki/Cheat_Sheet http://forum.kerbalspaceprogram.com/threads/25360-Delta-V-map http://forum.kerbalspaceprogram.com/threads/20993-Request-Delta-V-maps?highlight=delta (incomplete) System Delta-V Maps by JellyCubes V0.18.4 A Delta-V Map for simple flightpaths I prefer the first one.

Usually I design my stages top to bottom. Currenty I use the following approach. - the payload gets fuel and engines that can bring it from LKO to it's destination with a reasonable TWR of ~0,3 - 1,0 (depending on burn times) and add 10% fuel for errors and additionally 300-500 m/s for circularizing the launch - then add 1-2 serial stages that have together ~3000 m/s Delta-V for the upper part of the launch with a TWR > 1,5 - add an additional radial booster stage with Solid-Fuel booster that ignites together with the next stage and that adds enough Delta-V to reach orbit. I aim for 4500-4700 m/s Vacuum-Delta-V for the lifter stages. This is enough so that the upper stage can circularize but not too much so that they don't end up as space junk. Also if the target destination requires additional staging, I try to time the stages in a way that leaves no space junk. My Lopac Lifters are a little bit too expensive for career mode since they don't use Solid Fuel Boosters.

In the VAB the Build Engineer Overlay shows the most important facts about the rocket: Delta-V and TWR. I want to request that an additional info is displayed: the partcount. Currenty I have three alternatives to get an info about the partcount that are all a bit bothersome: using mechjeb or saving and looking at the Load-Screen or counting.

Sorry for the late reply. It is in fact the "submit the error log" popup. And I was able to disable it in the settings menu - thanks for the hint. Now Jebretary works, but occasionally "an error has occurred" but can be solved by reloading the page. Oh... 0.4.0 is out.... trying out ... having the same issues as in the previous version. Seems to be an isolated problem for me - most likely nothing you can fix.

Click on the picture to get to the post with greater details. At launch it had a TWR of 2.11.

For a post I received reputation (23rd August 2014 22:48) and the user also wrote a comment. Now that I look on my reputation site, the comment is replaced by "No Comment Made". Is this a bug in the forum?

I can confirm that this "double-hump" double-hump is consistent with the results, I got. Have a look at the violet "thr" line.

A while back there was a thread about ideal altitudes for refuelling stations with some charts. Might be interesting for you.

@K^2 Very interesting approach. Lookig forward so see your progress. A major factor of this theoretical ascent optimization is drag. Stock drag is very simple for rockets of all buildforms and easily put into a formula. Far's drag calculation way more complex and depends much more on the form of the rocket and unil someone will come up with a reasonable way to theoretically calculate FAR-drag in a simulation, there will not be such a thing. Maybe one could use the FAR-sourcecode itself for such an Optimizer. ;-)

Have you had a look at PSOPT? It is open source. I managed to get some good results with this system. Nice Work! I would explain it this way. In order to reach orbit you need a lot of horizontal speed. Trying to achieve this below ~10km is inefficient because of the dense atmosphere. If you manage to do this, I would be very interested.

From the picture it looks like the Center of Thrust is centered. Which engines are you using: LV-T45 or LV-T30? They look similar but the middle one of your engines should be a LV-T45 because it has Gimbaling. Gimbaling is a property of an engine that allows it to change the direction of thrust in order to make course corrections. Without it the Remote Guidance Unit probably has not enough torque to keep the rocket flying in a straight line. The winglets offer another way of steering the rocket in atmosphere.

You can make Kerbals considerably faster by using the Shift-key to make them sprint. 100 m in 45 sec on Kerbin.

I just put together an overview of the resources and modules needed for setting up Lifesupport or a Productionline. Details are here (however it consists of simple charts but not of a video): http://forum.kerbalspaceprogram.com/threads/79588-0-24-2-USI-Kolonization-Systems-%28MKS-OKS%29-%280-19-5%29-2014-08-07?p=1357474&viewfull=1#post1357474

I use D:\Programme for software that does not work with the windows-controlled C:\Program Files So the problem you mentioned is not the issue for me. Furthermore Jebretary works for me, its just that I get these annoying Popup-messages. I tried to narrow the problem down, but was not successful :-(