https://github.com/d6y/kerbal-calculator

Scala calculators for building rockets in Kerbal Space Program
https://github.com/d6y/kerbal-calculator

Last synced: about 1 month ago
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Scala calculators for building rockets in Kerbal Space Program

• Host: GitHub
• URL: https://github.com/d6y/kerbal-calculator
• Owner: d6y
• License: gpl-3.0
• Created: 2015-06-08T21:30:56.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-02-07T14:45:01.000Z (almost 10 years ago)
• Last Synced: 2023-03-10T19:08:48.535Z (almost 2 years ago)
• Language: Scala
• Homepage:
• Size: 434 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
[![Build Status](https://travis-ci.org/fommil/kerbal-calculator.svg?branch=master)](https://travis-ci.org/fommil/kerbal-calculator)

# kerbal-calculator

Once you've designed your payload (or any combination of upper

stages), and plan your manoeuvres, you'll know how much mass you need

to get through a minimum deltav and how fast you'd like to be able to

do it (to avoid missing flight windows).

To work out your engine and fuel requirements, you'll either need to

do a lot of trial and error or solve the ideal rocket equation with

some educated guesses. This calculator will do all that for you.

The calculator is available at [http://fommil.github.io/kerbal](http://fommil.github.io/kerbal)

## Run Locally

To use, clone and run like so

```scala

sbt "run 1200 10 50 false Large"

```

(You'll need [sbt](http://www.scala-sbt.org/download.html) and a Java Runtime)

Input parameters being:

1. **minimum deltav**

2. **payload mass**

3. **minimum acceleration**

4. **atmosphere**

5. **payload size**

Results will be ordered by the minimum initial mass of the engine stage.

e.g. the above returns

```

Rockomax "Mainsail" with 6.9t (86%) in a Rockomax X200-16 [a = 62.8, dv = 1200, cost = 8747, mass = 13.9t]

Rockomax "Mainsail" with 7.0t (87%) in a Rockomax X200-16 [a = 62.6, dv = 1212, cost = 8755, mass = 14.0t]

Rockomax "Mainsail" with 7.0t (88%) in a Rockomax X200-16 [a = 62.4, dv = 1224, cost = 8762, mass = 14.0t]

Rockomax "Mainsail" with 7.1t (89%) in a Rockomax X200-16 [a = 62.2, dv = 1235, cost = 8769, mass = 14.1t]

...

S3 KS-25x4 Cluster with 33.8t (47%) in a Kerbodyne S3-14400 [a = 50.3, dv = 2683, cost = 51697, mass = 53.6t]

```