Starship News

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  • Thread Starter
#21  
Sure hope that thing is tier 4 final!


Heh Heh, Nope...
Methalox has not been regulated on rocket emissions like diesels have been. from Quora:

It does burn relatively clean, and has several other advantages using methane vs. kerosene as rocket fuel

Though not as good as hydrogen, methane engines can produce more specific impulse than kerosene. This means more delta-v for the mass of fuel and engine. Methane is also far easier to handle and store than hydrogen.
Methane takes up much less volume than hydrogen, so the tanks can be smaller and lighter. It can be chilled before launch, causing it to shrink even further.

Methane is much cleaner burning than kerosene, eliminating problems with carbon deposits causing dangerous hot spots and blockages and greatly reducing the need for overhaul before reuse.

Methane can be made anywhere in space that power and common raw materials are available—including the surface of Mars.
Right now on Earth, methane is plentiful and cheap in the form of natural gas. In the future it will be made cheaply from solar power, water, and air.

The boiling point of oxygen and methane are close enough you can easily prevent one freezing the other with a little insulation. That’s not the case with hydrogen (which will freeze oxygen) or kerosene (which will be frozen by it).
These problems can be addressed with other fuels, but at the cost of extra weight.

Here is a Good video on rocket exhaust, including SpaceX
starts at point where the fuels are compared
 
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   / Starship News
  • Thread Starter
#23  
Looks like this is It.

T40 seconds and ...................................Launch
 
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   / Starship News
  • Thread Starter
#24  
Well it made it past Max Q and 39 Kilometer altitude
They should Learn a Lot.

SpaceX comments at some point.
 
   / Starship News #26  
Thanks for the link. I didn't listen to any of the sound. Was it just supposed to go up, spin around, then come back down?
 
   / Starship News #27  
   / Starship News
  • Thread Starter
#28  
Kaboom!

But it was more than they expected, so yay? 🤣

Yeah seems so. Was listening to the live coverage comments and one of the Camera Vans was hit with debri large enough to bend the A pillars and of course blow out the windows.

Hopefully Damage to the launch facility was minimal, some reports the water tanks took some hits

It will be Interesting to see why there was No stage separation, as of this post still no comment on whether they commanded the self destruct or forces tore the rocket apart after it started tumbling.

Debri has been an on going problem (Concrete spalling) but I thought they were moving to stainless shielding with internal water cooling to mitigate damage especially to the rockets engines since they lost what appeared to be around 6 engines. Just speculation. SpaceX has more ships in Q so it shouldn't be Long until a new launch is in the works.
 
   / Starship News #29  
Thanks for the link. I didn't listen to any of the sound. Was it just supposed to go up, spin around, then come back down?
From everything they said, they were very happy it cleared the launch pad, and anything else after that was bonus data.

I guess that's because they've never fired up all the engines at once before.
 
   / Starship News
  • Thread Starter
#30  
From everything they said, they were very happy it cleared the launch pad, and anything else after that was bonus data.

I guess that's because they've never fired up all the engines at once before.

Yeah somewhere North of 13000000 lb of thrust
Here is a screen shot
It looks to have excavated under the launch mount
 

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