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How to build a functioning rocket engine
By James the Bond
In a nutshell, a rocket engine is pretty basic. It needs a toggle button for ignition, a throttle value, a oxygen tank and a hydrogen tank. But, in order to get all of the fuel to be used or oxygen to be used on an engine, it will need a gas relief valve. The gas relief valve is fully automatic and will release gas if the pressure it to high. If the pressure is to high and there is no gas relief valve, the engine will refuse to use the fuel tank and/or oxygen tank. So far of what I know, the gas relief valve plays a very crucial role on a rocket. It can be used in a cockpit/capsule to make sure the pressure inside does not reach high values, and it can make sure that rocket fuel tanks and rocket oxygen tanks for the engine do not reach high amounts of pressure.

I hope this guide was helpful to you. If it was helpful, please put a comment on this guide.

Have a good day :D

UPDATED: If the rocket engine is not working, check if there are any valves you are using to stop the fuel being used. For some reason, valves (except for the Gas Relief Valve) stop the gas from flowing to the rocket engine. If you have any type of valves that control the flow of oxygen or hydrogen to the rocket engine, delete them and replace them with regular pipes. Hope this is helpful.
   
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Created by
James the Bond
In-Game
Rec Room
Category: Gameplay Basics, Walkthroughs
Languages: English
Posted
Updated
14 Oct, 2023 @ 12:32pm
15 Oct, 2023 @ 11:36am
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Guide Index
Overview
Extra facts about the Space DLC 
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Extra facts about the Space DLC
So far what I know of, the Space DLC can be a hell of a headache. But, it starts to get simple as you use different things. So far, I only know the basics of the Space DLC. If you have anything that can help players learn how to use the Space DLC, please leave a comment on this guide. Have a great day! :D
10 Comments
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white Noise 31 Oct, 2023 @ 10:00pm 
About co2 i have discovered that catalytic converters actually recycle co2 with a few stages but the co2 is completely deleted.

nitrogen can be taken out with a centrifuge with pump injection and high rpms
Lazermaniac 31 Oct, 2023 @ 6:18pm 
None of what you say about gas relief valves is correct. They do not have any sort of pressure they trigger at, they simply allow only liquid or only gas to travel freely between their nodes. There is currently no penalty to having gas tanks at high pressure - they fully fill up at 60 atmospheres and that's that - they don't burst like a boiler.

Now, for my 2 cents:

The rocket engine does not have an internal shutoff however, and will leak your Hydrogen and Oxygen even while idle and un-ignited. You need On/Off valves to ensure no fuel flows to the engines before you have ignition triggered and throttle above zero. Pumps could be used in addition to that to make sure every dreg of fuel is being used from the tanks, but the engine will run fine without them.

Space is cold, make sure you bring heaters.

There is no way to remove CO2 except venting atmosphere until the concentration drops to safe levels, then backfilling to normal operating pressure from oxygen and nitrogen tanks.
CaptLeeRoy7912 15 Oct, 2023 @ 11:52pm 
I spawn my rockets in with extra tanks and pumps on the ground, then fill the rocket tanks once spawned to 180-200 atm for fuel, and 230-250 atm for breathing air. This doubles your fuel range. I do not use any relief valves on the rocket engines, instead, an on/off valve on each fuel inlet port (engines) linked to the ignition button. When you fire the engines, the valves open and it ignites. When you depress the button, the valves close, shutting down the engine and you don't waste fuel to atmosphere. I can get a large (21 block diameter, over 100 block tall) single stage rocket 3/4 of the way to the moon this way.
4Floaters 15 Oct, 2023 @ 10:47pm 
Used basically an ssto pogo stick design with a lawn chair on top and a valve to both o2 and h tanks to prevent leakage, plus rcs.

manually controlled so number should be able to be higher if automated, flown better or designed with less drag

Small
Mass space / ?orbit?: ~636**, ***
O2: 1 Huge
H: 1 Huge
Throttle: 0.2
Cut off pressure ~.42*

Medium
Mass to space / ?orbit?: ~369***
O2: 1 Huge
H: 1 Huge
Throttle: 0.05
Cut off pressure .36*

Possibly better twr unsure

Large
Haven't gotten there yet

*Seems to be based on altitude (ambient pressure), orientation, and throttle but unsure the actual mechanics
**Learned that going slightly horizontal (like real life) at some point start helps, unsure of how realistic the orbital mechanics
*** So far


Haven't gotten to the large engine yet

Number seem low so likely doing something wrong
TheShark15 15 Oct, 2023 @ 12:58pm 
On my rocket, the rocket lifts off fine, but as I reach 6,500m my speed slowly decreases until at about 7,800m my rocket slows down a lot and it tips over and plummets down. Additionally, my fuel doesn't decrease as fast as it should. I have tried using large fuel pumps and the gas relief valve, but this doesn't help. Is there a way to fix this?
James the Bond  [author] 15 Oct, 2023 @ 11:38am 
Extra Note: The rocket engines use huge amounts of fuel in short amounts of time. I am not sure if the devs meant to put this in the game as "Realism", or if it is a bug. So for now, try and place lots of fuel inside your rockets so they can work for longer amounts of time.
James the Bond  [author] 15 Oct, 2023 @ 11:25am 
Note: Relief valves release pressure is too high inside a compartment or in a tank. Usually when I didn't know this, my rocket oxygen tanks would just release the oxygen after reaching high pressures. So relief valves are very helpful depending how much oxygen is used.
Walter White 15 Oct, 2023 @ 9:38am 
My rocket engine cuts out after around 3 seconds of running. Everything is correct and the oxygen and hydrogen tanks are in the right place, can anyone help me with this?
white Noise 14 Oct, 2023 @ 7:22pm 
Where is the relife valve used and what is your setup for the rocket engine ?
hobobirdisgood 14 Oct, 2023 @ 5:43pm 
how do you spawn in a rocket ship out side