29 May 2025, 18:25 [ UTC - 5; DST ]
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Username Protected
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Post subject: Re: Bravo SpaceX  Posted: 10 Dec 2020, 16:53 |
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Joined: 03/23/08
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Username Protected wrote: Would love to learn more about the actuators used for gimballing the engines and moving those fins.
That was really cool. Some stuff here: https://www.elonx.net/super-heavy-starship-compendium/But a great source of everything you want to know is the SpaceX facebook forum. Some real smart kids lurk in there... T
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Tom Johnson-Az/Wy
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Post subject: Re: Bravo SpaceX Posted: 10 Dec 2020, 17:23 |
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Joined: 07/19/10
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Company: Keller Williams Realty
Location: Madison, WI (91C)
Aircraft: 1967 Bonanza V35
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Username Protected wrote: Would love to learn more about the actuators used for gimballing the engines and moving those fins.
That was really cool. it was interesting to see how they moved independently during flip to land stage, the exhausts dancing in all directions.
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Post subject: Re: Bravo SpaceX Posted: 10 Dec 2020, 22:42 |
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Joined: 05/11/10
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Company: ? Most always. I like people.
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Aircraft: 1991 Bonanza A36
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Username Protected wrote: The problem as tweeted by Elon was insufficient pressure in the fuel (LEAN OF PEAK) header tank that fed the motors. This essentially starved them... the rocket motor was melting (DETONATION/OVER HEATING) and pouring itself (in this case copper) into the exhaust stream, coloring the flame.
Is this bait for an ROP/LOP argument?
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Post subject: Re: Bravo SpaceX Posted: 10 Dec 2020, 23:50 |
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Joined: 03/23/08
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Username Protected wrote: It was a pretty orgasmic event
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Tom Johnson-Az/Wy
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Post subject: Re: Bravo SpaceX Posted: 24 Jan 2021, 15:50 |
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Username Protected wrote: That little fella is ready to fly tomorrow. I didn’t think it would, I was wrong. Static fires done, swapped a few motors, fired again and residents have notices for tomorrow. So... maybe at least this week. 100% certain it will go different than SN8 did haha. 
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Tom Johnson-Az/Wy
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Post subject: Re: Bravo SpaceX Posted: 24 Jan 2021, 19:56 |
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Joined: 12/03/14
Posts: 20204
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Location: KEHR
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Username Protected wrote: 100% certain it will go different than SN8 did haha. :popcorn: Even if it doesn't seem to go differently, or goes worse, much will be learned. I personally think it will be a success even if it doesn't achieve as much as sn8 did. The new things sn8 did was amazing and it could very well be that things don't go as well for sn9. They also have sn10 seemingly ready to go, too. I don't think people realize how large these things are. 30 ft diameter, 160 ft tall, empty weight of 260,000 lbs. Each single engine is capable of 500,000 lbs thrust. That's double the thrust of ALL of the engines on a 747-400. The full up system, 400 ft tall with booster, will be more than double the mass of the Saturn V, 11 million lbs with 15 million lbs of thrust. Imagine there are 60 747-400 at max takeoff thrust all crammed into a 30 ft circle. Mike C.
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Post subject: Re: Bravo SpaceX Posted: 24 Jan 2021, 20:08 |
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Joined: 03/23/08
Posts: 7357
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Company: AssuredPartners Aerospace Phx.
Location: KDVT, 46U
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Username Protected wrote: 100% certain it will go different than SN8 did haha. Even if it doesn't seem to go differently, or goes worse, much will be learned. I personally think it will be a success even if it doesn't achieve as much as sn8 did. The new things sn8 did was amazing and it could very well be that things don't go as well for sn9. They also have sn10 seemingly ready to go, too. I don't think people realize how large these things are. 30 ft diameter, 160 ft tall, empty weight of 260,000 lbs. Each single engine is capable of 500,000 lbs thrust. That's double the thrust of ALL of the engines on a 747-400. The full up system, 400 ft tall with booster, will be more than double the mass of the Saturn V, 11 million lbs with 15 million lbs of thrust. Imagine there are 60 747-400 at max takeoff thrust all crammed into a 30 ft circle. Mike C.
For sure.
The size is hard to even understand. It’s basically the size of my whole hangar row (if it were stacked two hangars tall) ... and it does aerobatics on its own.
Truly inspiring.
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