Medium-Large Plane Engine
A plane engine with counter-rotating propellers that can run perfectly fine and even comes with an optional power booster.
The components in green that are outside the engine are a debug panel and engine/propeller control panel. Please ensure you connect things properly when using this in your creation.
Under normal full throttle (non-power boosted) and a propeller pitch of 0.67 the engine's temperature will stabilise at a temperature of ~92.
The power boost will cause the engine to spin faster, but will also make it's temperature stabilise at ~102, so use it sparingly.
At the bottom of the engine there is a fuel valve and bypass that allows fuel to both flow into the engine, and to flow through and feed another engine in the line, a fuel pump is recommended if you chain engines together.
The props can have their rotation reversed while at full throttle without killing the engine thanks to the large flywheel which handles most of the reversal loading before the engine spins it back up again.
This engine should be problem free, but if you find any issues, please let me know and I will fix it.