Hydrogen Engine (Spaced Out)
The Hydrogen Engine is the 7th and final engine in Spaced Out!, having the longest range and power out of all the engines. It is unlocked along with the Liquid Oxidizer Tank in Cryofuel Combustion.
Unlike most other engines, the Hydrogen Engine cannot store its own fuel, and needs to be stored in Large Liquid Fuel Tanks, similar to the Petroleum Engine. Like the Petroleum Engine, it needs oxidizer to function, with Liquid Oxygen being the most efficient. Liquid oxygen will need to be stored in a Liquid Oxidizer Tank.
Exhaust
In addition to the dry exhaust present in all rocket engines, the hydrogen engine produces 1726.85C Steam at 50kg/s. This creates tremendous amounts of heat and steam that can be harvested and is tremendously mass-positive depending on the length the rocket travels.
Not only does the heat risk damaging liquid pipes, it is hot enough to melt most Refined Metal. While the rocket and the Rocket Platform cannot melt, it can still melt rocket loaders/unloaders, power and automation wires, and overheat machinery like robominers, bunker doors, and rocket extensions. It is advised to use Tungsten for any buildings with little mass such as wires to prevent melting. It will also boil most common liquids, making it harder to transfer heat away from exposed components or operate liquid airlocks without an active cooling system to move heat away between launches.
While the easiest means to handle exhaust is to simply allow it to disperse into The Void and clean up the aftermath, recapturing this steam provides enormous amounts of resources. To capture rocket exhaust, surround the launch path with Drywall or Tempshift Plates and Insulated Tiles (ideally made of Ceramic or Insulation), and use a set of Mechanized Airlocks which shut as soon as possible when a rocket has launched or landed.
Trivia
- The Hydrogen Engine is currently the most powerful engine in Spaced Out!, being good for long range journeys and carrying large amounts of modules.
- Its current description and flavor text is a word for word copy from the base game Hydrogen Engine
- It has no visual difference to the base game Hydrogen Engine.
- Like other high level engines, it produces 600W of power, which can be used with a rocket electrical port.
See Also
History
- EX1-449549: Ported Hydrogen Engine to Spaced Out Hydrogen Engine (Spaced Out)
- U35-478755: Increased Hydrogen Engine fuel efficiency to change range per tank from 9 to 16.
| Engines |  Carbon Dioxide Engine Sugar Engine Steam Engine Small Petroleum Engine Petroleum Engine Radbolt Engine Hydrogen Engine |
|---|---|
| Fuel tanks and Oxidizers |  Large Liquid Fuel Tank Small Solid Oxidizer Tank Large Solid Oxidizer Tank Liquid Oxidizer Tank |
| Cargo Modules |  Cargo Bay Large Cargo Bay Liquid Cargo Tank Large Liquid Cargo Tank Gas Cargo Canister Large Gas Cargo Canister Critter Cargo Bay |
| Utility Modules |  Orbital Cargo Module Rover Module Trailblazer Module Cartographic Module Battery Module Solar Panel Module Artifact Transport Module |
| Command Modules and Nosecones |  Solo Spacefarer Nosecone Spacefarer Module Basic Nosecone Drillcone |
