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SpaceX

  #121 (permalink)
 
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 tturner86 
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Big Mike View Post
Only skimmed the article, but did they give a reason for the change of venue? I assume water based would mean less damage, so maybe they are confident enough the next test will be successful?

Mike

It doesn't say. My opinion is they realized how hard and stupid it was aiming for a barge on a moving sea... @tgibbs might have a better opinion...

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  #122 (permalink)
 tgibbs 
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tturner86 View Post
It doesn't say. My opinion is they realized how hard and stupid it was aiming for a barge on a moving sea... @tgibbs might have a better opinion...

Being in international waters has zero regulations which is the main reason. The amount of paperwork and testing to be able to launch a vehicle from an Air Force base is amazing. Now think about a vehicle that is now headed towards land at an incredible speed and has never been tested before. The Air Force hasn't even thought up paperwork for all that haha! If you can do it on a barge than your case is really good for landing on land. If you can hit a barge then your case is better than nothing I suppose lol.

The vehicle actually has zero care about land or water as the vehicle is purely hitting a single spot. Whether the barge can hold position and the swells are low enough for the landing to happen is where luck of the weather will come in. Otherwise there isn't much difference. Well one more difference is the fuel to burn in order to head back the direction you came vs just float it down range ...

My bet though is the barges aren't going to be put out of service any time soon. Some missions that are really heavy will require it to land down range instead of at the launch site

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  #123 (permalink)
 
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 tturner86 
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tgibbs View Post
Being in international waters has zero regulations which is the main reason. The amount of paperwork and testing to be able to launch a vehicle from an Air Force base is amazing. Now think about a vehicle that is now headed towards land at an incredible speed and has never been tested before. The Air Force hasn't even thought up paperwork for all that haha! If you can do it on a barge than your case is really good for landing on land. If you can hit a barge then your case is better than nothing I suppose lol.

The vehicle actually has zero care about land or water as the vehicle is purely hitting a single spot. Whether the barge can hold position and the swells are low enough for the landing to happen is where luck of the weather will come in. Otherwise there isn't much difference. Well one more difference is the fuel to burn in order to head back the direction you came vs just float it down range ...

My bet though is the barges aren't going to be put out of service any time soon. Some missions that are really heavy will require it to land down range instead of at the launch site

That was something I was thinking about, the difference between landing downrange and back at launch site. To me it would almost be easier to orbit once and land instead of burning fuel to come backwards. Reminds me of the aborts for the shuttle. (Return to launch, Transalantic Abort, Abort Once around and the Abort to Orbit.)

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  #124 (permalink)
 tgibbs 
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tturner86 View Post
That was something I was thinking about, the difference between landing downrange and back at launch site. To me it would almost be easier to orbit once and land instead of burning fuel to come backwards. Reminds me of the aborts for the shuttle. (Return to launch, Transalantic Abort, Abort Once around and the Abort to Orbit.)

Unfortunately the 1st stage isn't high enough or fast enough to abort and orbit. The 2nd stage does a lot of work. The barge position is basically where the stage would hit if it were just left alone. The only reason the engines light is to orient the vehicle tail end first, to keep the vehicle from oscillating and then finally to slow down prior to landing (or impact )

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  #125 (permalink)
 
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Will Elon Musk's SpaceX Go Public?

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  #126 (permalink)
 
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SpaceX attempts rocket landing on land on Saturday - Business Insider

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  #127 (permalink)
 tgibbs 
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Should be an exciting evening

Falcon 9?s return-to-flight launch delayed 24 hours | Spaceflight Now

And they actually got clearance from the Air Force to land back on the new landing site pad ... Pretty surprised

Rocket landing at Cape Canaveral planned after SpaceX launch | Spaceflight Now

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  #128 (permalink)
 
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 tturner86 
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T-Minus 2hrs @tgibbs

SpaceX | Webcast

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  #129 (permalink)
 tgibbs 
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tturner86 View Post
T-Minus 2hrs @tgibbs

SpaceX | Webcast

Going to be an exciting 30 minutes leading up to launch

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  #130 (permalink)
 
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Click link above 3 mins till booster landing...

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