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Offline wilsonphil

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Re: SpaceX launch
« Reply #300 on: November 04, 2019, 02:20:43 PM »
https://www.youtube.com/watch?v=1NLQ4bO-f58

Our competion at work, FF to 24:50 for the action, notice the brown clowd

Offline cruizng

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Re: SpaceX launch
« Reply #301 on: November 04, 2019, 05:01:37 PM »
Phil,
Just guessing but is the brown cloud due to solid rocket fuel vs liquid? Or can you not say the importance of the brown cloud.  :popcorn:
Mike
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Offline wilsonphil

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Re: SpaceX launch
« Reply #302 on: November 04, 2019, 07:42:41 PM »
Most RCS(Reaction Control Systems) thrusters are what is known as Biprop, a fuel and an oxidizer.  Typically for Fuel Hydrzine, MMH, N2H4 and then NTO Nitrogen Tetroxide, N2O4  so the Hydrizine and NTO are hypergolic (burn when come in contact) so in VERY basic terms you spray the two at one another into a chamber that burning mixture goes out thru a orifice and you make thrust.

 The big brown cloud you see is the NTO, your life expectancy is pretty short after a couple breaths as the NTO breaks down to Nitric Acid in your lungs so you drown on your own fluids.  The hydrazine attacks the central nervous system it wont kill you right away but your days a numbered as long term exposure is what dose you in.  Your body cannot process the Hydzine so it just rides around in you system until it gives you cancer or some other problem.  I hate to think how many years i have shaved off my life!!!! 

Offline cruizng

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Re: SpaceX launch
« Reply #303 on: November 04, 2019, 08:47:59 PM »
Most RCS(Reaction Control Systems) thrusters are what is known as Biprop, a fuel and an oxidizer.  Typically for Fuel Hydrzine, MMH, N2H4 and then NTO Nitrogen Tetroxide, N2O4  so the Hydrizine and NTO are hypergolic (burn when come in contact) so in VERY basic terms you spray the two at one another into a chamber that burning mixture goes out thru a orifice and you make thrust.

 The big brown cloud you see is the NTO, your life expectancy is pretty short after a couple breaths as the NTO breaks down to Nitric Acid in your lungs so you drown on your own fluids.  The hydrazine attacks the central nervous system it wont kill you right away but your days a numbered as long term exposure is what dose you in.  Your body cannot process the Hydzine so it just rides around in you system until it gives you cancer or some other problem.  I hate to think how many years i have shaved off my life!!!!
Yikes. Check. Stay away from NTO and Hydrazine.

How does that propellant differ from the SpaceX fuel?


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Mike
2008 D-Max pretty stock except small lift, tires, and intake.

Offline Flyin6

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Re: SpaceX launch
« Reply #304 on: November 05, 2019, 10:00:55 AM »
Didn't the Nazi war machine have problems with hydrazine when fuelling the rockets they flew during WW2. I believe that fuel was hyopgolic as well. First used in the manned comet, then the V2 as well...Do I have that right?
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Offline wilsonphil

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Re: SpaceX launch
« Reply #305 on: November 05, 2019, 10:32:09 AM »
Didn't the Nazi war machine have problems with hydrazine when fuelling the rockets they flew during WW2. I believe that fuel was hyopgolic as well. First used in the manned comet, then the V2 as well...Do I have that right?

Negative, they were using ethanol Among other things that didn't play nice with people and equipment, it was liquid fuel LOX and ethanol.  Of note the V2 was a copy of Goddard's design the Germans just copied the design for the info they got off the patent they got a copy of the patent from the US patent office.

Hydrazine didn't start to be used in space applications until the 50's, made by Olin(Winchester).  The French are the ones that came up with a very weak from of Hydrazine in the 1800's, they developed it to use as fungicide for grapes but it has a great secondary feature as it breaks down it forms ammonia which is a great fertilizer. 

« Last Edit: November 05, 2019, 11:02:22 AM by wilsonphil »

Offline wilsonphil

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Re: SpaceX launch
« Reply #306 on: November 05, 2019, 10:53:00 AM »
more to come on this if anyone is interested
« Last Edit: November 05, 2019, 11:00:55 AM by wilsonphil »

Offline Flyin6

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Re: SpaceX launch
« Reply #307 on: November 05, 2019, 11:37:06 AM »
OK, copy that
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Offline EL TATE

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Re: SpaceX launch
« Reply #308 on: November 05, 2019, 12:23:50 PM »
more to come on this if anyone is interested

I was pretty freakin' stoked to find my "Occupy Mars" t-shirt Sunday when I had to get behind the dryer to fix the vent. You have my attention sir.
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Offline cruizng

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Re: SpaceX launch
« Reply #309 on: November 05, 2019, 01:16:44 PM »
Count me in as always interested in what you post Phil!  :beercheers:
Mike
2008 D-Max pretty stock except small lift, tires, and intake.

Offline TexasRedNeck

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Re: SpaceX launch
« Reply #310 on: November 05, 2019, 07:10:28 PM »
Phil is the cliff Clavin of space travel. I’m totally in for more history lessons. Fascinating stuff!!


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Offline cruizng

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Re: SpaceX launch
« Reply #311 on: November 06, 2019, 07:54:50 AM »
Phil,

Not sure if you follow this stuff but what I find amazing is that after hurling through space for 42 years it is still working and sending back data.

This was created when they had rooms full of computers that equal the computing power that we have on our wrist now.

I wonder if the stuff we are making today will have the same resilience.   


(link took me to an error/repair screen)
« Last Edit: November 11, 2019, 04:52:29 PM by JR »
Mike
2008 D-Max pretty stock except small lift, tires, and intake.

Offline wilsonphil

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Re: SpaceX launch
« Reply #312 on: November 10, 2019, 08:36:37 PM »
ok back to real space work,

https://www.youtube.com/watch?v=pIDuv0Ta0XQ


This is the second launch of 60ea Spacex built birds, to date 120ea have been launched

Offline wilsonphil

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Re: SpaceX launch
« Reply #313 on: November 11, 2019, 08:48:34 AM »
All is looking good for this morning

Offline wilsonphil

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Re: SpaceX launch
« Reply #314 on: November 11, 2019, 09:44:51 AM »
T-minus 10min

Offline cruizng

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Re: SpaceX launch
« Reply #315 on: November 11, 2019, 11:35:56 AM »
Still get chills watching it!  :likebutton:
Mike
2008 D-Max pretty stock except small lift, tires, and intake.

Offline wilsonphil

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Re: SpaceX launch
« Reply #316 on: November 11, 2019, 12:41:47 PM »
From this morning, pretty fitting on veterans day

Offline Flyin6

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Re: SpaceX launch
« Reply #317 on: November 11, 2019, 04:55:13 PM »
An actual booster rocket on its 4th flight!

SpaceX is setting records with each launch.

Incredible is a word that doesn't seem adequate to describe all of this!

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Offline wilsonphil

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Re: SpaceX launch
« Reply #318 on: November 11, 2019, 09:16:58 PM »
+ the payload fairing was a refly also.

BUT the best part of the day is watching the satellites fly over the factory where it was all built about 12 hours later.  Really cool to see them go shooting by.  Pictures to come!
« Last Edit: November 11, 2019, 09:41:53 PM by wilsonphil »

Offline Sammconn

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Re: SpaceX launch
« Reply #319 on: November 12, 2019, 10:06:40 AM »
This is so cool.  :likebutton:
I just don't want to wind up missing a digit or limb.  I can sometimes get in a hurry to get results.
Sam

Offline wilsonphil

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Re: SpaceX launch
« Reply #320 on: November 12, 2019, 09:08:25 PM »
From last nights pass over Hawthorne

Offline EL TATE

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Re: SpaceX launch
« Reply #321 on: November 13, 2019, 10:59:18 AM »
cool timelapse
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