# Antimatter Engine (AME)
The AME is one of the simplest engines available. You put together the multi-tile structure, stick some fuel into it, and you're all set. This doesn't mean it is perfectly safe though; you may need to deal with the AME overheating.
## Construction
Required parts:
To assemble an AME, start by wrenching down the controller on the near end of a HV wire. On most stations, there's catwalks to assist with this. From there, start putting down a 3x3 or larger square of AME parts in preparation for construction, making sure to maximize the number of "center" pieces that are surrounded on all 8 sides.
Once this is done, you can use a multitool to convert each AME part into shielding, which should form a finished AME configuration. From there, insert a fuel jar, set the fuel rate to [color=#a4885c]twice the core count or less[/color], and turn on injection. Any more than this ratio will eventually result in the engine [color=#ff0000]overheating and[/color], shortly afterwards, [color=#ff0000]exploding[/color].
## Fuel Economy
The closer you are to the perfect ratio of [color=#a4885c]1:2[/color] AME cores to fuel injection rate, the more efficient you'll be. You're cutting fuel efficiency to [color=#a4885c]50% and less[/color] if you're using more cores, but a lower fuel injection rate.
For an example, [color=#76db91]3 cores and 6 fuel injected[/color] will generate [color=#76db91]240kW[/color], while [color=#f0684d]8 cores and 8 fuel injected[/color] will generate [color=#f0684d]160kW[/color]; you'd be generating 80kW less while spending 2 more fuel per injection.
## Upgrading the AME
You can generally only upgrade the AME by installing more cores, which can be done by ordering more AME flatpacks from [color=#a4885c]Cargo[/color].