Author Topic: SpaceX Falcon 9 : Iridium NEXT Flight 2 (June 25, 2017) : UPDATES  (Read 116432 times)

Offline Star One

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Online ZachS09

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T+25 seconds. The roll and pitch programs have initiated.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online Steven Pietrobon

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Liftoff!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online ZachS09

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T+50 seconds. Falcon 9 approaching the sound barrier in about ten seconds.

Stage 1 PU is nominal.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online ZachS09

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Mach 1. The vehicle now experiencing maximum dynamic pressure.
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Offline Chris Bergin

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Online ZachS09

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T+90 seconds. Main Engine Cut Off will occur at T+2 minutes, 24 seconds; this will be followed by stage separation and the first second stage engine start.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online Steven Pietrobon

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T+1 minute.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online ZachS09

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MVac chilldown underway.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online ZachS09

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T+2 minutes, 10 seconds. First stage engines throttling down to limit acceleration stresses prior to MECO.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online ZachS09

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We have MECO-1. And stage separation is confirmed.

Second stage has ignited for the first of two burns.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online Steven Pietrobon

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T+2 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Star One

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MECO + SEP
« Last Edit: 06/25/2017 08:28 pm by Star One »

Online ZachS09

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First stage now flipping to its boostback burn attitude.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online ZachS09

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Stage 1 boostback burn has started; the three restartable engines will fire until the impact point lies directly on the drone ship.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online ZachS09

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T+3 minutes, 15 seconds. The payload fairing has been jettisoned.

Stage 2 power and telemetry look good.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online ZachS09

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And we have shutdown of the boostback burn. Standing by for the titanium grid fins to deploy.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline Star One

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Fairing separation

Online ZachS09

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All four grid fins have deployed; these will help steer the first stage in addition to the cold-gas thrusters.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online Steven Pietrobon

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T+3 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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