Message from @ricardo__

Discord ID: 801909600995246171


2021-01-21 20:18:32 UTC  

It's an old rocket, so it's to be expected

2021-01-21 20:18:37 UTC  

Still

2021-01-21 20:18:58 UTC  

They're just begging to test the angara

2021-01-21 20:19:01 UTC  

They wanted to launch human moon missions on that

2021-01-21 20:19:14 UTC  

When the n-1 hit the fan

2021-01-21 20:19:26 UTC  

Yeah, that would have been a disaster

2021-01-21 20:19:33 UTC  

Not safe at all

2021-01-21 20:19:33 UTC  

And didn’t the have the NK-33 at that time

2021-01-21 20:20:07 UTC  

Haha ya

2021-01-21 20:20:21 UTC  

That was an environmental disaster

2021-01-21 20:20:34 UTC  

It killed all the wildlife in Baikonur

2021-01-21 20:20:40 UTC  

Even with kerosene you have a huge problem of a RUD

2021-01-21 20:20:48 UTC  

Yeah

2021-01-21 20:21:07 UTC  

Pretty much with any highly energetic fuel

2021-01-21 20:21:15 UTC  

Methane or any other cryo boils away

2021-01-21 20:21:27 UTC  

If not combusted

2021-01-21 20:21:44 UTC  

Hydrogen is pretty good, but it has it's own problems

2021-01-21 20:21:51 UTC  

Yes

2021-01-21 20:22:22 UTC  

It has a reeeeally low density

2021-01-21 20:22:27 UTC  

Yes

2021-01-21 20:22:54 UTC  

It leaks through the tanks

2021-01-21 20:22:55 UTC  

And makes the engines have horrible engineering problems

2021-01-21 20:23:03 UTC  

Yea

2021-01-21 20:23:03 UTC  

With the TWR

2021-01-21 20:23:23 UTC  

Expander cycle is the best

2021-01-21 20:23:41 UTC  

The RS-25 is a good one, but it's super complex

2021-01-21 20:24:00 UTC  

Yes it’s too expensive if it’s not reused

2021-01-21 20:24:26 UTC  

It's like 40 million dollars for a single unit

2021-01-21 20:24:27 UTC  

And the rs68 failed to live up to its promises

2021-01-21 20:24:54 UTC  

A expander bleed cycle is the best option for a hydrolox first stage

2021-01-21 20:25:04 UTC  

Yeah

2021-01-21 20:25:06 UTC  

It has good thrust and low complexity

2021-01-21 20:25:21 UTC  

It’s impossible to do that with a closed expander

2021-01-21 20:25:28 UTC  

For a first stage

2021-01-21 20:25:41 UTC  

Yeah

2021-01-21 20:26:11 UTC  

The Raptor is probably the best, since it uses Methane

2021-01-21 20:26:19 UTC  

True

2021-01-21 20:26:36 UTC  

It depends on your design consideration

2021-01-21 20:27:02 UTC  

The raptor is probably the the most complex modern engine

2021-01-21 20:27:51 UTC  

The pressures in the GG lines are 500+ bar oxygen