About Rocket Fuel Calculator for ONI
This app helps calculate the amount of rocket fuel needed in “Oxygen Not Included”.
It is designed for the “vanilla” version of the game without any DLCs.
The app calculates the required fuel based on the rocket’s components (dry mass) and engine type (output).
This is an unofficial fan-made app and is not affiliated with or endorsed by Klei Entertainment Inc.
Usage Guide
1. Choose your target distance and engine type.
2. Add rocket modules to set the dry mass.
The rocket engine and command capsule are mandatory modules and are already included in the dry mass.
For petroleum and hydrogen engines, at least one liquid fuel tank is required; calculations cannot be performed without it.
The calculated fuel amount will never exceed the storage capacity of the installed fuel tanks.
(Example: If only one liquid fuel tank is installed, the calculation will not exceed 900 kg.)
3. Load the calculated fuel amount into the tanks in Oxygen Not Included.
• Steam engines: Load the calculated fuel amount as is.
• Petroleum and hydrogen engines: Load the calculated fuel amount into both the liquid fuel tank and the solid oxidizer (or liquid oxidizer) tank.
Notes:
Loading more fuel than the calculated amount will increase the total rocket mass,
which may prevent the rocket from reaching the target distance.
If both a solid oxidizer tank and a liquid oxidizer tank are installed for petroleum or hydrogen engines, the app assumes the fuel is distributed between the tanks based on their count.
For example, if the required fuel is 300 kg and you have two solid oxidizer tanks and one liquid oxidizer tank, load 200 kg into the solid oxidizer tanks and 100 kg into the liquid oxidizer tank.
Otherwise, the rocket may not reach the calculated distance.
Tip:
The app saves your module setup for each engine type – so switching engines or reopening the app will always restore your custom configuration.
It is designed for the “vanilla” version of the game without any DLCs.
The app calculates the required fuel based on the rocket’s components (dry mass) and engine type (output).
This is an unofficial fan-made app and is not affiliated with or endorsed by Klei Entertainment Inc.
Usage Guide
1. Choose your target distance and engine type.
2. Add rocket modules to set the dry mass.
The rocket engine and command capsule are mandatory modules and are already included in the dry mass.
For petroleum and hydrogen engines, at least one liquid fuel tank is required; calculations cannot be performed without it.
The calculated fuel amount will never exceed the storage capacity of the installed fuel tanks.
(Example: If only one liquid fuel tank is installed, the calculation will not exceed 900 kg.)
3. Load the calculated fuel amount into the tanks in Oxygen Not Included.
• Steam engines: Load the calculated fuel amount as is.
• Petroleum and hydrogen engines: Load the calculated fuel amount into both the liquid fuel tank and the solid oxidizer (or liquid oxidizer) tank.
Notes:
Loading more fuel than the calculated amount will increase the total rocket mass,
which may prevent the rocket from reaching the target distance.
If both a solid oxidizer tank and a liquid oxidizer tank are installed for petroleum or hydrogen engines, the app assumes the fuel is distributed between the tanks based on their count.
For example, if the required fuel is 300 kg and you have two solid oxidizer tanks and one liquid oxidizer tank, load 200 kg into the solid oxidizer tanks and 100 kg into the liquid oxidizer tank.
Otherwise, the rocket may not reach the calculated distance.
Tip:
The app saves your module setup for each engine type – so switching engines or reopening the app will always restore your custom configuration.
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