
To make a tank of rocket fuel in Advanced Rocketry, you'll first need to ensure you have a sufficient supply of rocket fuel. If you're using bipropellant engines, you'll need hydrogen and oxygen. Once you have the fuel, you'll need a Fueling Station. Place this within 5 blocks of your assembled rocket and supply it with power and fluids. If you're using bipropellant, it's best to have two fueling stations, one for each liquid. You can then use a linker to link the fueling station to the rocket. Finally, interact with the rocket and you should see the fuel gauge rising.
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What You'll Learn

Hydrogen and oxygen for bipropellant engines
For those interested in using bipropellant engines, a good supply of hydrogen and oxygen is required. The bipropellant liquid oxygen and hydrogen combination offers the highest specific impulse for conventional rockets. This extra performance offsets the disadvantage of low density, which requires larger fuel tanks.
Liquid-propellant rockets use bipropellant systems, where an oxidizer and a fuel are kept in separate tanks and mixed in the combustion chamber. In this case, liquid oxygen is the oxidizer and liquid hydrogen is the fuel. This combination was first used in the Soviet rocket programme in the Energia core stage in the 1980s.
To get the fuel into the rocket, a fueling station is required. This should be crafted and placed within 5 blocks of the assembled rocket and supplied with power and fluids. If using bipropellant, it is best to use two fueling stations, one for each liquid. The linker should then be used to link the fueling station to the rocket, and the rocket interacted with to see the fuel gauge rising.
It is important to note that the number of engines and fuel tanks depends on the weight of the blocks chosen. As the number of engines increases, so does the number of fuel tanks required. The rocket needs enough fuel to get to the destination and back, so a balance between mass, thrust and fuel capacity is crucial for a successful rocket launch.
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Fueling Stations
To fuel your rocket, you will need a Fueling Station. This should be crafted and placed within five blocks of the assembled rocket. It will also need to be supplied with power and fluids. If you are using bipropellant, it is best to have two fueling stations, one for each liquid. The fueling station will accept buckets of fluid or fluid piped in from other mods.
Use a linker to link the fueling station to the rocket, and remember to select the fueling station first. You can then interact with the rocket and see the fuel gauge rising. If you are using a high-pressure tank, you can right-click on it with the tank, and it will fill. If you are talking about getting fuel onto a ship, you will need a linker. While the rocket is unbuilt, shift right-click the linker on a Fuel Loader that is part of the rocket and then shift right-click on the rocket-building machine. You will get a message about a successful link. Then build the rocket, and it should start filling.
An alternative method is to use a Fluid Input Hatch. Pump the rocket fuel into the hatch, and you can fill the tanks in the GUI.
It is also important to consider the number of engines and fuel tanks required. The number of engines will depend on the weight of the blocks chosen. Engines provide thrust, and each rocket needs enough thrust to get through the atmosphere. As the number of engines increases, so does the number of fuel tanks required. The rocket needs enough fuel to get to your destination and back. You must find a balance between mass, thrust, and fuel capacity to launch a successful rocket.
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Fuel gauge
A fuel gauge is an important component of a rocket, as it helps monitor the amount of fuel available and ensures the rocket has enough fuel to complete its mission and return safely.
In the context of "Advanced Rocketry", a fuel gauge is mentioned as part of the rocket's GUI (graphical user interface). After powering the rocket, the assembly machine can be used to scan and check the rocket. Once the rocket is assembled, interacting with it will display the storage items on the GUI, including the fuel gauge.
The fuel gauge is a critical tool for monitoring the rocket's fuel levels, especially considering the highly flammable nature of rocket fuels and the careful handling they require. The gauge helps ensure the rocket has enough fuel to complete its mission and safely return, as well as preventing overfilling, which could pose safety risks.
The process of fuelling a rocket in "Advanced Rocketry" involves using a Fueling Station. This station is crafted and placed within a close range of the assembled rocket, and it is supplied with power and fluids. If using bipropellant engines, two fueling stations are recommended, one for each liquid fuel component. The linker is then used to connect the fueling station to the rocket. As the rocket is interacted with, the fuel gauge will indicate the rising fuel level.
In the broader context of rocketry and satellites, fuel gauges have traditionally been challenging to engineer due to the unique conditions in space. Traditional methods of fuel measurement, such as those used in automobiles, may not be applicable or accurate. A novel approach to addressing this challenge has been proposed by the National Institute of Standards and Technology (NIST). Their prototype fuel gauge employs electrical capacitance volume tomography (ECVT), a low-cost 3D imaging technique. This technique involves lining the interior of the fuel tank with flexible electrodes that emit electric fields to measure the fuel's electrical properties and, consequently, its volume. This innovative design has the potential to provide more accurate fuel measurements, helping to optimise satellite missions and prevent collisions.
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Fuel ratios
The number of engines and fuel tanks in a rocket depends on the weight of the blocks used. As the number of engines increases, so does the number of fuel tanks required. The rocket needs sufficient fuel to reach its destination and return. To launch a rocket successfully, a balance between mass, thrust, and fuel capacity is crucial.
The Rocket Assembling Machine is used to assemble the rocket, and it must be placed on the launch pad's edge, one block higher. This machine scans the rocket to check for all the required blocks and calculates the mass, thrust, and fuel ratios. The results are displayed on the GUI of the assembling machine.
The optimum fuel ratio varies with the specific engine design. The mass ratio of 2.77:1 is provided as an example. The ratio is based on the molecular masses of the fuel and oxidizer. The Wikipedia page on liquid rocket propellants provides further details on combustion and exhaust velocity.
The mixture ratio, or the proportions of fuel and oxidizer burned, can be expressed in several ways. One method is to use the percentage of the total mass flow that is fuel. Another approach is to use the molar ratio, where a mole is the mass equivalent of the molecular weight of the fuel and oxidizer. A stoichiometric mixture ratio refers to the exact proportion of fuel and oxidizer required for complete combustion. For instance, one mole of hydrogen combines with a half mole of oxygen to produce a mole of water.
In the 1950s, another popular method to express the mixture ratio was to use the percentage of the total mass flow that is fuel. The specific impulse, or the thrust divided by the total mass flow of propellant, is also used to express rocket performance. However, due to unfamiliarity with specific impulse units, exhaust velocity is often used instead, measured in meters per second (m/s).
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Fluid Input Hatch
The Fluid Input Hatch is a crucial component in the process of fuelling a rocket for advanced rocketry. It serves as a convenient and effective solution for transferring rocket fuel or any other liquid from a non-compatible container into high-pressure tanks.
Here's a step-by-step guide on how to utilize the Fluid Input Hatch:
- Obtain Rocket Fuel: Ensure that you have a sufficient quantity of rocket fuel. If you are employing bipropellant engines, you will need both hydrogen and oxygen.
- Set Up the Fueling Station: Construct a Fueling Station within a close proximity of your assembled rocket, ideally within a range of 5 blocks. Provide the Fueling Station with the necessary power and fluid connections. If you are using bipropellants, consider setting up two separate Fueling Stations, each dedicated to one type of liquid.
- Use the Fluid Input Hatch: The Fluid Input Hatch is specifically designed to facilitate the transfer of fluids from non-compatible containers into high-pressure tanks. Simply pump the rocket fuel or liquid into the Fluid Input Hatch, and it will direct the fluid into the high-pressure tanks. This process can be monitored and controlled through the graphical user interface (GUI).
- Link the Fueling Station to the Rocket: Utilize a linker to establish a connection between the Fueling Station and the rocket. Remember to select the Fueling Station first before interacting with the rocket. You should observe the fuel gauge rising as the fuel is transferred into the rocket.
- Prepare for Launch: Once the fuelling process is complete, perform the necessary pre-launch checks. Ensure that you have crafted a space suit and charged it with oxygen using the Gas Charge Pad. Install a seat inside the rocket and confirm that all other components, such as satellite bays or space station modules, are securely in place.
- Calculate Mass, Thrust, and Fuel Ratios: Before finalizing the rocket assembly, use the assembling machine to scan the rocket. This scan will verify that all required blocks are in place and calculate crucial parameters such as mass, thrust, and fuel ratios to ensure a successful launch.
By following these steps and utilizing the Fluid Input Hatch, you can efficiently transfer rocket fuel into high-pressure tanks, bringing you one step closer to a successful advanced rocketry mission.
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Frequently asked questions
Water and hydrogen in a Chemical Reactor produce rocket fuel. You can then use a Fueling Station to get the fuel into the assembled rocket.
The number of fuel tanks depends on the weight of the blocks you've chosen. Each rocket needs enough thrust to get through the atmosphere, so as the number of engines increases, so does the number of fuel tanks required.
The easiest way to get rocket fuel into high-pressure tanks is to use a Fluid Input Hatch. Pump the rocket fuel into the hatch and you can then fill the tanks in the GUI. Alternatively, you can use a Linker to link the fueling station to the rocket.











































