Author Topic: Impulse Space  (Read 33360 times)

Offline FutureSpaceTourist

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Impulse Space
« on: 09/18/2021 05:50 am »
https://twitter.com/lrocket/status/1439078509872234497

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The website for my new company just went live, and we’re hiring!  Go to impulsespace.com and check it out.  We are developing in-space propulsion and ready to hire great people.

Quote from: https://www.impulsespace.com/
ECONOMICAL AND AGILE LAST-MILE SPACE PAYLOAD DELIVERY
Space is more accessible than ever, but efficiently moving payloads into higher energy orbits remains a challenge. At Impulse Space Propulsion we're changing that by providing agile, economical capabilities to access any orbit.
« Last Edit: 02/20/2023 02:09 am by gongora »

Offline FutureSpaceTourist

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Re: Impulse Space Propulsion
« Reply #1 on: 09/18/2021 10:57 am »
twitter.com/john_gardi/status/1439081226669858821

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Each is a single piece?

https://twitter.com/lrocket/status/1439082758966374403

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Yes, still on the build plate post print.  These are development units designed to operate at sea-level.  Flight engines will have glorious high area ratio nozzle skirts for optimal performance in the vacuum of space

Offline RedLineTrain

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Re: Impulse Space Propulsion
« Reply #2 on: 09/18/2021 04:24 pm »
Mueller's reply to Musk on propellants...

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Nitrous oxide and Ethane stored as liquids

https://twitter.com/lrocket/status/1439263317533462530

Offline RedLineTrain

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Re: Impulse Space Propulsion
« Reply #3 on: 09/18/2021 04:40 pm »
LEO space tugs...

Quote
Yes, we want to provide up to 2 km/sec of Delta V, enough to move anywhere in LEO

https://twitter.com/lrocket/status/1439081770775769091

Offline Mandella

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Re: Impulse Space Propulsion
« Reply #4 on: 09/18/2021 05:06 pm »
Great to see Mueller back in the game.

This is going to be one to watch...

Offline TrevorMonty

Re: Impulse Space Propulsion
« Reply #5 on: 09/19/2021 09:32 am »
The OTV market is still up for grabs, nice to see few companies working on them. Combined with fuel depots which others are working on and we have makings of vibrant in space transport network.

Sent from my SM-G570Y using Tapatalk
« Last Edit: 09/19/2021 05:31 pm by TrevorMonty »

Offline Rik ISS-fan

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Re: Impulse Space Propulsion
« Reply #6 on: 09/19/2021 12:30 pm »
He must have been inspired by Dawn Aerospace.
Looks dual fluid regenerative cooling to me. Integrated powerhead turbo pump?
« Last Edit: 09/19/2021 12:35 pm by Rik ISS-fan »

Offline Daniels30

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Re: Impulse Space Propulsion
« Reply #7 on: 11/10/2021 12:33 pm »

A couple of BTS shots of Impulse with Mueller.
“There are a thousand things that can happen when you go to light a rocket engine, and only one of them is good.” -
Tom Mueller, SpaceX Co founder and Propulsion CTO.

Offline Navier–Stokes

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Re: Impulse Space Propulsion
« Reply #8 on: 03/09/2022 06:51 pm »

Offline matthewkantar

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Re: Impulse Space Propulsion
« Reply #9 on: 03/09/2022 08:26 pm »
A seven(?) month old company showing a row of Mach diamonds on the test stand. Holy cow.
« Last Edit: 03/09/2022 08:27 pm by matthewkantar »

Offline Nomadd

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Re: Impulse Space Propulsion
« Reply #10 on: 03/09/2022 10:03 pm »
A seven(?) month old company showing a row of Mach diamonds on the test stand. Holy cow.
I think it was only 9 months from the founding of SpaceX to the first Merlin test fire.
 Tom seems to be his only competition.
Those who danced were thought to be quite insane by those who couldn't hear the music.

Offline nicp

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Re: Impulse Space Propulsion
« Reply #11 on: 03/10/2022 12:01 pm »
Looking at the engine on the right, why is the pipe second from left flattened near the engine bell?
For Vectron!

Offline Robotbeat

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Re: Impulse Space Propulsion
« Reply #12 on: 03/10/2022 03:03 pm »
A seven(?) month old company showing a row of Mach diamonds on the test stand. Holy cow.
Not particularly hard for a very small engine and a team of funded and driven people who know what they’re doing in Mojave.

They have some idea of what a good injector geometry might be. They can whip up a chamber design in CAD, print it off, clean it up and fire. The test stand plumbing is off the shelf stuff. They’re using ethane and nitrous oxide, so the material requirements aren’t exotic at all. (Nitrous is pretty common for racing, etc). At 500-600psi, ethane is liquid at room temperature (and ~700-750psi for nitrous), so they don’t even need cryo handling capability (valves and fittings get annoying with cryo), although probably stuff will get cold in places. The nice thing is that your propellant isn’t constantly boiling off. But it does fully evaporate at sea level (well, Mojave ;) ) pressure, which is nice, too, as you don’t have to worry about residues.

So no, not super surprising to me. Even student groups are doing liquid rocket engines, now, even using LOx.
« Last Edit: 03/10/2022 03:07 pm by Robotbeat »
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Offline su27k

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Re: Impulse Space Propulsion
« Reply #13 on: 04/01/2022 02:54 am »
Impulse Space is betting on a future where launch is cheap

Quote from: Eric Berger
Given their background at SpaceX, the leaders of Impulse Space fully believe the launch company will ultimately realize its goal of a large, fully reusable rocket in Starship. And they recognize that the launch industry is changing in response to this. Matsumori was an advisory board member at Relativity Space for three years, a company that is also seeking to build the fully reusable rocket with its Terran R vehicle. Future versions of Blue Origin's New Glenn rocket will also likely have a reusable first and second stage.

"This is fundamental for us," Matsumori said. "The cost per kilogram, across the board, is going down, especially with the vehicles that are coming. And Starship is certainly coming. The balance between what you launch from Earth versus what you do in orbit is starting to shift. That really means that you're going to do more in space."

<snip>

"One of the things I've always thought about, even going back to my SpaceX days, is what happens to space if the cost of access to space is essentially free?" Matsumori said. "What can one imagine happening to the space economy? And the answer is that there are some capabilities before that were challenging, such as pharmaceuticals, or materials, or semiconductors. If the cost of access gets that low, then these industries are possible."

Offline sdsds

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Re: Impulse Space Propulsion
« Reply #14 on: 04/01/2022 04:09 am »
The discussion of delta-v rather than Isp sure makes it seem like they are thinking about a specific vehicle (tug). The website graphic at https://www.impulsespace.com/ also suggests that. (Screengrab attached.) With that delta-v budget they might take a passenger from GTO to GEO, and conceivably still have enough gas in the tank to then grapple a disabled comsat and move it to a graveyard orbit. Is there money to be made by doing that? Or is this really about deploying a lower orbit constellation with a reduced number of launches?
— 𝐬𝐝𝐒𝐝𝐬 —

Offline su27k

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Re: Impulse Space Propulsion
« Reply #15 on: 06/19/2022 03:51 am »
Impulse Space raises an additional $10 million for orbital transfer vehicles

Quote from: SpaceNews
In-space transportation company Impulse Space, which raised $20 million in a seed round earlier this year, announced June 17 it raised another $10 million to help accelerate work on orbital transfer vehicles.

Impulse Space said it raised $10 million from venture fund Lux Capital, which invests in “frontier technologies” like space. The company announced a $20 million seed round March 30 led by Founders Fund.

<snip>

“With funding from Lux Capital, Impulse continues to build on a solid financial foundation and an equally strong foundation of the amazing people supporting us,” Mueller said in a statement about the new funding.

Offline su27k

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Re: Impulse Space Propulsion
« Reply #16 on: 07/19/2022 03:40 pm »
https://www.impulsespace.com/mars

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Impulse Space is partnering with Relativity to perform the first ever commercial landing on the red planet.

The integrated Cruise Vehicle, Entry Capsule, and Mars Lander developed by Impulse Space will launch in 2024 on the Relativity Terran R launch vehicle. After traveling through interplanetary space for over half a year, the Cruise Vehicle will inject the Entry Capsule into the correct landing trajectory and detach. The Entry Capsule will use the proven combination of heatshield and parachute to slow down enough to safely deploy the Mars Lander into freefall. The lander will then perform a propulsive landing using purpose-built engines developed in-house at Impulse Space, completing the first commercial payload delivery to the surface of another planet.

The page also has graphics for the cruise stage and lander.

Offline su27k

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Re: Impulse Space Propulsion
« Reply #17 on: 07/19/2022 03:41 pm »
Hard to see the business case here, the only thing I can think of is that they think NASA will start a CLPS equivalent program for Mars cargo delivery.

Offline Zed_Noir

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Re: Impulse Space Propulsion
« Reply #18 on: 07/19/2022 04:47 pm »
Hard to see the business case here, the only thing I can think of is that they think NASA will start a CLPS equivalent program for Mars cargo delivery.
There are customers other than NASA for a provider with proven Mars EDL capability. The ESA comes to mind with their Rosalind Franklin rover looking for a ride to the Martian surface.
 

Offline Redclaws

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Re: Impulse Space Propulsion
« Reply #19 on: 07/19/2022 04:49 pm »
Hard to see the business case here, the only thing I can think of is that they think NASA will start a CLPS equivalent program for Mars cargo delivery.

I think it may be limited - Mueller is pretty wealthy and seems to partly just want to do this.

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