Author Topic: Hercules - NASA SACD single-stage reusable lander for Mars concept  (Read 4334 times)

Offline ThePonjaX

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Hi. I'm started these thread here because I don't know where to put it and I couldn't find a post about these in the forum.
Please moderator put on on the appropriate place.

I saw these before on reddit and it call my attention:



https://sacd.larc.nasa.gov/vab/vab-projects/hercules/

Some interesting characteristics:
- reusable
- lunch and land vertically
- abort system included

and
the engines aren't on the bottom of vehicle. A very interesting choice, which enables some interesting possibilities as show in the video.
« Last Edit: 03/16/2020 03:17 am by ThePonjaX »

Online Robotbeat

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The main engines ARE on the bottom; theyíre just not used for terminal landing. This avoids problems with excavating a crater under your rocket.
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

Online Coastal Ron

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Wow, something from NASA that makes sense!

Which probably means it has no chance of being developed, but I do like it. It looks like an evolution of ULA's ACES Lunar Lander design, and I like the improvements.
If we don't continuously lower the cost to access space, how are we ever going to afford to expand humanity out into space?

Online Robotbeat

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Wow, something from NASA that makes sense!

Which probably means it has no chance of being developed, but I do like it. It looks like an evolution of ULA's ACES Lunar Lander design, and I like the improvements.
i donít think it has anything to do with the ACES lander design.

This lander design is a good 5 years old.
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

Online Coastal Ron

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Wow, something from NASA that makes sense!

Which probably means it has no chance of being developed, but I do like it. It looks like an evolution of ULA's ACES Lunar Lander design, and I like the improvements.
i donít think it has anything to do with the ACES lander design.

This lander design is a good 5 years old.

Well ACES has been around for at least 10 years, and imitation is the sincerest form of flattery.  :D
If we don't continuously lower the cost to access space, how are we ever going to afford to expand humanity out into space?

Offline Rocket Science

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Those nose landing engines were what I proposed for StarShip oh so long ago... ;) 8)
« Last Edit: 03/26/2020 05:31 am by Rocket Science »
"The laws of physics are unforgiving"
~Rob: Physics instructor, Aviator

Online Robotbeat

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Wow, something from NASA that makes sense!

Which probably means it has no chance of being developed, but I do like it. It looks like an evolution of ULA's ACES Lunar Lander design, and I like the improvements.
i donít think it has anything to do with the ACES lander design.

This lander design is a good 5 years old.

Well ACES has been around for at least 10 years, and imitation is the sincerest form of flattery.  :D
It has nothing to do with the ACES lander.
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 Rocket Science

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Interesting escape system...
"The laws of physics are unforgiving"
~Rob: Physics instructor, Aviator

Offline GWH

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If one browses through some of the old ITS speculation threads they will find this exact concept proposed by various posters.

It's the correct solution to the correct problem -how to build iterations of hardware to the final goal of landing on Mars. No weird 3 stage lunar lander. No reliance on long transits and SEP for human transport.

How much delta V would just the main propulsion element have? Probably enough to take Orion to Gateway and the Gateway elements for assembly in a dual launch scenario. Exactly what would be needed INSTEAD of building a super heavy lift system like SLS.

This is what it looks like when the means to do something align with the end goal.  It's also the same reason it looks more than a little like Starship.

Offline Rocket Science

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The more I look at this the more I see it has a BO vibe to it... IMHO...
« Last Edit: 04/02/2020 04:56 pm by Rocket Science »
"The laws of physics are unforgiving"
~Rob: Physics instructor, Aviator

Online Robotbeat

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Bump in context of lunar Starship having similar landing style with the high mounted thrusters.
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 RanulfC

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Bump again to include a link to "Atomic Rockets" Lander/Hercules section which includes links to all the open papers on the concept (as well as the "ISRU-to-the-Wall" study group)
http://www.projectrho.com/public_html/rocket/excursion.php#hercules

There have also been several class and collage related projects such as this thesis on:
"Atmospheric Entry Performance of the Hercules Single-Stage Reusable Vehicle at Earth"
https://trace.tennessee.edu/cgi/viewcontent.cgi?article=6994&context=utk_gradthes

As well as another, (behind a paywall or membership):
"Subscale Demonstration and Validation of the Hercules Lunar and Mars Ascent, Descent, and Entry Vehicle"
https://arc.aiaa.org/doi/10.2514/6.2020-2015

And a Space Review article on the entire concept which is designed to rapidly enable ISRU and Mars, (and the Moon) base build up and orbital infrastructure:
"Enabling a Mars settlement strategy with the Hercules reusable Mars lander"
https://www.thespacereview.com/article/3085/1

Randy
From The Amazing Catstronaut on the Black Arrow LV:
British physics, old chap. It's undignified to belch flames and effluvia all over the pad, what. A true gentlemen's orbital conveyance lifts itself into the air unostentatiously, with the minimum of spectacle and a modicum of grace. Not like our American cousins' launch vehicles, eh?

Tags: Mars Concept NASA 
 

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