Optimal Engine Charts for Kerbal Space Program 1.1.1

Chart parameters

Basic Instructions

1. Select fixed variable: set which variable you want to keep fixed out of Payload, Minimum TWR and Delta-v. The other two variables will be on the axes of the plot.
2. [fixed variable]: set the value of the variable that will remain fixed.
3. [variable] ranges: set the minimum and maximum values of the variables to plot. These can be changed later directly on the chart.
4. Atmosphere: set the atmospheric pressure (in atm). Note that many engines have substantially worse efficiencies (Isp) in the atmosphere. Use the Presets dropdown to set the pressure from a list of KSP bodies with atmospheres.
5. Max # of engines: configure the maximum number of engines allowed in the analysis. Use it to filter out ridiculous solutions with hundreds of engines. Check the Unlimited checkbox if no limit is desired.
6. Chart quality: if the chart is taking too long to generate (shouldn't take more than a second), set quality to Low (faster).
7. Engine selection: select the desired engines using the checkboxes on the right of the page.

Click the Calculate! button to calculate and plot the chart; further interactivity is provided on the chart itself. Click the Load example button to load an example set of chart parameters.

For more information on how these charts are calculated or to ask a question about the app, see the discussion thread on the KSP forums.

Calculate! Load example