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Air Density

This mod affects the physics of:
- Aerodynamic blocks (props, wings, etc)
- Flying spirals
- Balloons (and the new Hot Air Balloon)
- Vacuums
- Flamethrowers
with altitude.
It uses a decaying exponential function to calculate air pressure, mimicking real life.

It also adds a light system to flamethrowers.

Dependencies
- Object Explorer - since this mod doesn't have its own UI, this is the only way to actually use it. See images.
- Instrumentality - this mod has an air gauge and altimeter which integrate with this mod.

Preset Modes
'Disabled' - vanilla behaviour, default
'Normal' - see images; 100% at 0m, 10% at 2000m
'Low' - 100% at -500m, 10% at 1500m (half of normal)
'None' - 100% and 10% at some insanely low value (i.e. nothing)

These altitudes can also be set manually without presets.
They're also not capped - you can set the sea level altitude above 0 and you will get higher density air.

Krautregen came up with some funny thumbnails.