Flying on other planets

Flying On Other PLanets

Developed by	Wil Neeley
Written in	C++
OS	Only tested on Linux
Platform	Ubuntu 12.04lts
Development status	Active

This Page is the documentation of trying to simulate flying on other planets in flightgear. I located the files responsible for atmosphere and gravity in the flightgear source code.

File Locations

The files are in /src/Enviroment
The names are
atmosphere.cxx
atmosphere.hxx
gravity.cxx
gravity.hxx

Simulating gravity

After looking at the source code in the atmosphere and gravity files I decided to start by adjusting the gravity to that of titan because that planet is most likely able to be flown upon.
I changed lines 48-52 to
// Geodetic Reference System 1980 parameter

1. define A 6576.0 // equatorial radius of Titan
2. define B 6576.0 // semiminor axis
3. define AGA (A*1.352) // A times normal gravity at equator
4. define BGB (B*1.352) // B times normal gravity at pole

from

1. define A 6378137.0 // equatorial radius of earth
2. define B 6356752.3141 // semiminor axis
3. define AGA (A*9.7803267715) // A times normal gravity at equator
4. define BGB (B*9.8321863685) // B times normal gravity at pole

Now to compile ....