Stationeers Let's play Mars 49 Top tier rocket engine.

Back for some more rockets. It is time for the rolls royce of the rocket engines. It is the pressure fed liquid engine, the most fuel efficient of the engines and a little bit tricky to use. It beat me last time and now for round 2.

[@theonlyothertimbit]

i couldn't figure out rockets until i found your channel. I still cant not blow stuff up but that seems to be normal so thanks i guess

[@cowsareevil7514]

Things exploding is normal for this game. As the saying goes, you can't make an omlette without burning down the house.

[@truezulu]

We all know the real reason the pipe in the rocket exploded... It was the wrong color! :p

[@AnonNopleb]

The Rolls-Royce of rocket engines is finally roaring to life! My uneducated guess is that the pressure fed liquid engine pulls gasses and liquids with different flow rates. While the stationpedia does state explicitly that gas is also flushed out (probably to prevent super lazy setups where you just prime the fuel line once with nitrogen gas and then forget about it), I bet it is a lot slower. So while you do have a perfect mix in the pipe, the engine would output mainly the liquids and only a small amount of that gaseous oxygen. Your original mixing code might work much closer to optimal if you just ignored the gas composition in the pipe. 🤔

[@WolfPlaysGames2]

I was wondering the same thing. Even with the right fuel mix, are you losing more thrust because of the low gas flow rate than you gain from having the warmer fuel? It might not be worth it with O2, but maybe with a Volatile gas/Nitrous mix?

[@cowsareevil7514]

I have done some more testing and ignoring the pressurant and just muxing the liquids seems to work best.

[@shadowdrake082]

From my experience, it is better to make sure the liquids are mixed at the 2:1 ratio for volatiles mix (as it burns, not as a premix)... I dont know how much gases go to the engine up but it doesnt seem to be very many and a nonfactor if those pipes were almost completely filled with liquids. I still run into issues that if I have a premixed fuel mix, eventually my fuel becomes volatile rich. The separate gas tanks will probably be my next revision since I got something that kind of works for controlling volume and pressure. I do think that if the fuel pipe is under high pressure, the volume mixing will get better because then no gas volatiles or gas oxygen will be pumped in by the volume pump so that then the pumps will more closely fix the ratios. But looking at your test result... would it be better to try to pump enough liquids and keep an eye for how many mols of a liquid there are and pump in enough to fill in the missing amount? Because the biggest issue was my liquid oxygen evaporating and throwing off the whole mix pretty badly.

[@cowsareevil7514]

I was worried about the different evaporating rempertures being an issue. that is why I thought to mix as I need it might be best.

[@shadowdrake082]

@@cowsareevil7514 I think the way you did it was the best. a very consistent for a time 35kN + was pretty good. I think I have stabilized around 32kN but progressively gets worse as I run out of fuel since my oxygen is tied up as the pressurant gas.

[@WolfPlaysGames2]

Maybe adjusting the exchanger to a set pressure point isn't optimal. You're almost at the pressure already from the fuel pumping, so the heat is having limited effect on your thrust. You should get higher thrust and ISP if he heated the fuel to the highest temperature it can handle. Depending on how the engine handles the gases, either warm it just under the boiling point of Volatiles or possible just under the ignition point of the fuel mix.🙈

[@cowsareevil7514]

You could use either temperture or pressre. I thought there was more change in the pressure so it would be easier to detect.

[@Dragoonx3690]

I hate how smooth the edits are where the Walter clones are concerned 😂 my brain legit locks for a second goin wtf wait a min

[@samuraidriver4x4]

Nice one Mick. Regarding the mix it wouldn't suprise me if its going a bit wierd due to the liquid and gaseous oxygen? Starship and super have also hate gaseous oxygen and methane, they tend to cause a bit of engine rich exhaust 😅 But i am sure you figure out a way to get maximum performance out of it.

[@cowsareevil7514]

It seems to give the most power from the 2:1 mix but the exhaust doesn't make any sense. I might just have to ignore the engine mix.

[@walterverlaan1286]

Good stuff. Gooood stuffff.

[@Buzzdog1971]

I am curious if you can take the fire pit to the next level by dumping liquid H2O in the pit for a working water deluge system.

[@budwilliams7908]

When you were trying to communicate with the rocket from the computer by the launch computer, the rocket wasn't connected with the electrical umbilical. Could that be why you couldn't program it from safety?

[@lange1815]

Yes the ratios are based on moles