F9: Starlink v1.0 Launch 5


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DocM

60 more Starlink commsats

 

Pad: LC-39A

Date: March14

Time: 0935 Eastern

 

And on April 8 the US Air Force will use Starlink in a nation-wide live-fire Air Battle Management System exercise, connecting air and land based assets. 

 

Sites will include Eglin AFB, Florida, Nellis AFB, Nevada, Yuma Proving Ground, Arizona, and the White Sands Missile Range, New Mexico.

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DocM

StarLink v1.0 Launch 5

 

Static fire good

5th flight of core 1048 (1048.5)

Re-flight of the StarLink v0.9 fairings 

Date: Sunday, March 15,

Time: 0922 Eastern (1322 UT)

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Jim K

Well ... she tried to go.  Aborted right after engine(s) fired.

 

"Ignition

Liftoff

Disregard

We have an abort"

 

 

14:50

 

 

 

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DocM

Abort "out of family": one engine's thrust was too high.

 

New date: March 18

New time: 0816 Eastern (1216 UT)

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DocM

Good launch & insertion, but the first stage recovery failed.  Musk said one engine shut down early creating an Engine-Out (the other 8 throttle up), so no recovery.

 

Speculation: it looked a bit wobbly during the entry burn, and the plume looked small. Perhaps one of the 3 landing engines failed? 

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anthdci
23 hours ago, DocM said:

Good launch & insertion, but the first stage recovery failed.  Musk said one engine shut down early creating an Engine-Out (the other 8 throttle up), so no recovery.

 

Speculation: it looked a bit wobbly during the entry burn, and the plume looked small. Perhaps one of the 3 landing engines failed? 

That’s only the second engine to fail during a mission if I remember rightly?

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DocM
2 hours ago, anthdci said:

That’s only the second engine to fail during a mission if I remember rightly?

 

Yup, and the first Merlin 1D out of several hundred flown. The other was a Merlin 1C, a far different engine.

 

More proof their multi-engine with armored engine cells &  Engine-Out capability is the correct approach.

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bguy_1986

The first Merlin was the only "new" engine that ever failed, or was it re-used as well?

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DocM

F9 Block 1 were disposable launchers, all 5 went into the drink.

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DocM

Which caused a high temp fault, triggering the Engine Out system. 

 

It was a landing engine, and a high energy launch which requires a 3 engine high-G deceleration segment during the landing burn. Not being able to do this, the booster sacrificed itself to save the droneship.

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