NASA reveals inside NEW UPDATE on Dream Chaser's future propulsion...Vertical position!
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- Опубліковано 2 лют 2024
- NASA reveals inside NEW UPDATE on Dream Chaser's future propulsion...Vertical position!
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#alphatech
#techalpha
#spacex
#elonmusk
#nasa
#dreamchaser
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NASA reveals inside NEW UPDATE on Dream Chaser's future propulsion...Vertical position!
It has been over ten years since the last Space Shuttle flight, and now, more than ever, NASA is rushing to finalize preparations for the imminent launch of the next spaceplane into orbit.
Recently, NASA cooperated with Sierra Space - the agency is actively engaged in conducting crucial tests on Dream Chaser, just unveiled numerous intriguing developments.
How exactly is NASA and Sierra Space conducting these tests on its new spaceplane? And when can we expect its launch?
Let's explore these questions in today's episode of Alpha Tech:
After many years of work, the first reusable spacecraft Dream Chaser from Sierra Space is almost ready to fly.
Sierra Space's shuttle-like Dream Chaser has been put through its paces at a powerful NASA vibration facility that mimics conditions during launch and atmospheric reentry, officials said 1st February ahead of its planned first flight to the ISS this year.
The first spaceplane of a planned line, Tenacity, was completed at the company's factory in Louisville, Colorado in November and then shipped to NASA's Neil Armstrong Test Facility in Sandusky, Ohio.
There, it was exposed to the Mechanical Vibration Facility, the world's most powerful spacecraft shaker system.
NASA said on X "It’s the only place in the world like it-where we test like we fly to ensure spacecraft are ready for launch. Now, we’re putting the @SierraSpaceCo Dream Chaser spaceplane and its Shooting Star cargo module through the paces at NASA’s Neil Armstrong Test Facility."
This is one of the crucial tests that will determine whether the spacecraft can begin its mission or not. It holds significant importance for Sierra Space, as they also updated their status on February 2nd: "Today, the Sierra Space team has arrived at a profound milestone in our amazing journey - one of audacious dreaming and tenacious doing. We are now living in the Orbital Age."
Fantastic! The first test probably went quite well, but to ensure safety and efficiency during launch and reentry into Earth's atmosphere, the first Dream Chaser named Tenacity will need additional time for fine-tuning and further testing. - Наука та технологія
Not only that, if Dreamchaser is launched atop a non-reusable booster, the mission will cost a lot more than Dragon, which is launched on a resuable first stage.
If Dreamchaser launches on top of a Falcon-9 booster, then Space-X still get's a good amount of $$$ from the launch.
Why couldn't it be launched on top of a reusable Space X superheavy? I'm sure Musk would be glad to rent one's use. They already plan to launch a fully functional space station soon anyway.
Will the final version have all it's heatshield tiles? The version in this video is clearly missing some.
Up scaled lifting body.
So? If it’s more reliable than the shuttle, what’s wrong with a lifting body?
Even if a new vehicle can't do more than the older vehicle...it's good to have something different and cool. In the future, it may become a shuttle taking passengers from the ISS to a different station or to the ground. It may be used as an emergency escape pod or something like that.
I really am excited for Dreamchaser and I wish them only great success for the next 90 years.
Thank you for your comment!
With the many new commercial space stations being planned, I'm sure they will get a lot of business. Also with the difficulties the European space agency is having, they will likely have them as customers too.
We have a symphony of orbital transportation building in space equipment that will enable the right choice for every mission.
Redundancy, going up or coming down.
Thanks for the insightful report putting this all together.
Thank you so much! Have a good day
Yep I’ll ride this one. Excellent stuff bro 💪🇺🇸
Thank you so much!
Looking forward for the air launch system which will utilize efficient gas turbine engines.
There is no air in space.
Thank you for your comment! Have a good day!
i think he means the SABRE engine that is a dual fuel.
@@allanchurm Yes, I mean this on SSTO vehicle. Or two kinds of engines on one SSTO vehicle. Or something two-staged like it could be Мрiя-Буран.
Show me don't tell me. Was wondering how the epoxy laminates performed on shaking betty.
I love the fact that Dream Chaser is designed to carry dozens of concrete blocks (as depicted at 6:15) into orbit! What would we do without it?!
Using Dream Chaser to deliver cargo/people to various places is awesome BUT once landed, the Dream Chaser has to be shuttled back to a launch pad to be flown again. Add that expense to the cost of use. It will be no trivial process either because it is bigg enough that trucking it down a highway is going to require road closures, it appears to big to fit in a cargo plane to fly it home and shuttling it by boat will require it to land at a port.
Um. No.
Why? It can land at just about any normal runway. You could land it where it needs to be to be serviced. It is also much smaller than the original space plane and will be far simpler to transport if needed. You won't need to strap it onto a 747. A truck will do.
@@keithhoward4069
Landing at any airport is great but getting it back to the launch pad for reuse will be a problem. Trying to estimate if it will fit on a truck from the pictures. It seems to big to fit on a highway without blocking traffic. I have not found actual dimensions, yet. Have you got them?
@@GadreelAdvocat
Um, yeah. Duh!
Or. It will land close to where it was launched. The same runway the space shuttle landed. So transport costs are next to SFA.
Inmienent...?.... well, as soon as the 2nd delay passes by..., we hope ti see results....
Starship is ready in a couple weeks. Dream Chaser is far behind, but multiple paths to orbit are welcome.
Starship is nowhere near “ready”. Two launch attempts and zero successes.
No life support.
No docking systems.
No ground test capability.
@@allangibson8494 maybe not ready for humans, but they want to make orbit and make the deorbit burn for success. Heat shielding has already been developed. Docking systems are yet to be tested, but it’s not like they haven’t been worked on.. The second stage is to wind up in the Pacific this time. After that, reusable. THEN precision landing, then life support if not just a cargo mission, one step at a time, unlike NASA ALL-OR-NOTHING. Remember how many Falcons were destroyed in first testing? Now we’re over 150 in a row, zero in flight losses. (One fell off the recovery ship in high seas, some time during the return to Canaveral, not during landing). No other system has ever been this cheap or reliable.
Starship is still in test mode . This one will blow up when it gets close orbit. Then they'll roll the next one out
I think there is a need for the Enterprize shuttle craft in space. A real work vehicle. This design does not reflect that need. Sorry but is this an airplane, a Cybertruck or a sneeker.
Nice! really nice!
But what I want to know, is what is the angle of re entry, and appropriate glide ratio, to be able to design and build fabricated stainless space planes, that dont require heat shields and just rely on the properties of the stainless, and their entry angle to not over heat.
Because you could get space plane benefits in very cheap and quick projects to build, that could be much larger than the old Space shuttle, and designed to land cargoes like say ore from Psyche in decent amounts.
And they could be flying boat designs and land anywhere there was a large body of water... Also they might use multiple smaller boosters to launch, instead of the giant unit like current starship. That could be attached via brackets and flew themseves back to the launch point like Falcon boosters. And depending vector angle control these boosters could be used for seaplane like water launches, but have tilt rotorcraft like lift assistance.
If the fabricated space plane also had thrust vectoring and tilt vector pod engines, it could also be used as a Lunar or Mars lander. I would try to design its thrust and fuel capacity to lift Cargo off Mars without a booster if possible.
I think we need to get serious about practical usability, and start upscaling and industrializing designs.
And think in terms of the Antonov of space planes.
Get away from the tube rocket and stubby wing Space Planes, and into the era of graceful sky birds that can haul serious amounts and dont need towers or runways, that just add infrastruture costs and add nothing to cargo capability or use in primitive conditions.
The future starts now.
Maybe we should start working more on it, and less on things we have already done?
What I see is alot of money and brain power being used to do things that seem archaic compared to whats possible....
Perhaps we need an educational system that also has imagination and creativity courses in engineering and not just numbers crunching.
So we are producing progress rather than structural or design bean counters.
Like maybe we should start building courses like Marine Engineering and Naval Architecture, but for Space, instead of relying on Tube Rocket Nerds to be our creative space future designers.
I suggest a project criteria test for funding: if its been done before, it should get less funding, than if its pushing the envelope forward for us.
Interesting! Your comment is great! Thank you so much!
I like the idea of wings to help with re-entry. As the craft decends into thicker atmosphere the wings would beging lifting and slow the decent until the heat generated was reduced. As the heat was kept low the skin of the craft would not melt.
👍😎👍
Note: tried to reply to applied facts post and wasnt allowed to.
if you dont allow replies you have no credibility.
The Germans had a weapon concept at the end of WW2 based on the physics I am talking about. skipping thru the upper atmosphere like a flat stone on a pond.
We notice those slow down first and sink second... thats the idea.
Plunging into atmospheres is dumb and risky.
@@appliedfacts ok, I'm having some problem answering you, and a bit peeved, sorry! never got the same note before.
My apologies if this gets thru.
@@appliedfacts Yeah did another writ for you that I couldnt send like you were blocking me.
The Germans had a weapons concept at the end of WW2 that skipped thru the upper atmosphere after a semi orbital rocket launch, idea was to get it to the US like skipping a flat stone on a pond. I envision a flying wing glider concept, with blended hull, and sea plane criteria with the wing tips as stabilizers in water.
Also a bit of extra thickness to the air foil shape would be good, to create maximum lift and frontal resistance.
I saw the original American flying wing at Eglin as a kid, and my first realization was it had too much abrupt frontal area, looked like a flying Strip Mall window up front...
Basically the game would be turning air passage into lift instead of heat.
And you could skip-dip-& Stall it to bleed off velocity.
seeing and following everything about Dream Chaser development, sometimes makes me think "what the hell is SpaceX doing with Starship development".
A lot of Venom in here.
. This seems a little over the top considering the Dream Chaser is picking after Boeing dropped the ball.
Let’s not forget that Sierra was eliminated from competition and they decided to forge ahead with the goal of completing crew missions. They were literally told thanks but we don’t need you.
When Boeing absolutely shit the bed they were standing in the wings ready to help.
Well done Sierra. Your Dream Chaser is gonna be a game changer.
At this point I think shape of dream chaser looks overcomplicated, does all the curves make sense? Complex tiles, that hard to replace, and fabricate, can result in long
it probably lets the heat flow off it as it travels instead of running along the surface.
Actually, simple logic shows that most of the tiles are on the underside, and the upper side won't be exposed to extreme temperatures. Dream Chaser was originally designed as a piloted spacecraft. That upper bulge is supposed to be the pilot area and for windows and in the manned version will be. those tiles are larger and better designed than the old space shuttle tiles.
I'll bite, how will the crew version execute a launch abort? One word comes to mind, "Challenger."
I agree.. only this one will ride in a fairing..there is no escape
@@thrillchaser9492The CARGO version uses a fairing. The crew version won’t but requires deep integration to the launch vehicle as its aerodynamic controls will directly influence the rocket’s directional control.
The DreamChaser will use its two orbital manoeuvre engines for launch abort (which also need clearance around the rocket body).
These aren’t new issues - the concept dates from the Boeing X-20 in 1957.
Where are the lights in windshield wipers?
Where are the windows???
Dream chaser is like a sports car for space. Sadly it has a similar problem.
It only has enough room for a hand bag ...
Be cheaper to launch it on a SpaceX rocket so if your selling point is quick trips to/from why not save money as well?
The selling point for DreamChaser is a gentle re-entry and arrival at an airport for rapid unloading.
Why is there no front wheel? It looks like the skid plate will dig up the runway.
You need go search an you will get the answer...
Since it's a smallish glider and can't move under it's own power once on the ground, a nose wheel simply isn't needed. Makes things super simple and once the nose is on the runway, you want maximum drag to slow it down to a stop. Design of the skid will make it wear down before impacting the asphalt runway's surface. For directional control, use asymmetric breaking on the main gear wheels.
A good book on how to colonize our solar system is Second Exodus Colony located at the Internet Archives. All politicians and adminestrators need to read this book.😊
Will beleave it when it happens and leaves the launch pad
yeah!
Great Video ! Sierra Space Dream Chaser is what the NASA Space Shuttle should have been ! Is Dream Chaser the NEW Pan Am Shuttle ? Access to LEO and safe return is the first small step for the return to the moon to stay and support the Cis-Lunar Economy ! tjl
Yeah! Thank you for your comment!
With all the NASA assistance of Dream Chaser, does NASA own a % of Sierra Space? If not, why not?
Sierra space has a spaceship before Boeing and wasn't chosen for Commercial Crew.
How much of Boeing should NASA own?
And given the billions NASA has plowed into SpaceX?
@@allangibson8494 That's a funny way of saying SpaceX saved NASA billions of dollars.
@@jtjames79 Boeing wasted billions. Separate question.
Sierra Aerospace has a long history making spacecraft components for everyone.
Кроссовка какая-то...
The ability to execute a general trajectory....who wrote this nonsense?
Where are the ga dam windows???
this is not a crewed version
Vertical is junk. Call SpaceX csx rolling start G force relief.
Gostaria de dizer ao Joe Biden para experimentar: Leite, açúcar e abacate e bater em um liquidificador! Si chama vitamina de Abacate! Comer peixe também é bom!
In terms of production, maintenance, launch/recovery costs per unit of cargo, Dream Chaser's is inferior to conventional manned and cargo spacecraft. It is good as an operational/emergency means of evacuating people from orbit, as a flexible delivery vehicle for cargo/cosmonauts from orbit to different areas of the Earth, and as a way to save on search and rescue operations on Earth when using traditional descent capsules. There is a benefit, especially if the price and weight are within reasonable limits, and functionality and reliability are ensured to the maximum. I would develop two modifications of Dream Chaser's, one in case of emergency evacuation of people from orbit, the second for "delivery" of goods/people "to addresses" on Earth. In the first modification, minimal weight and reliable performance for long-term presence in space are important. In the second modification, improved flight performance in the atmosphere, maneuverability, flight range, and undemanding landing strip are important.
Thank you for your comment!
Returning cargo to different places, faster delivery to end users, and softer treatment of that cargo can offset higher costs per pound. But it's also important as an experiment. Remember, Beck said he would eat his hat if RocketLab ever considered reusable rockets. SpaceX proved it was not just possible but profitable.
@@tmg7476 It's all about the balance of what is desired and what is possible. SpaceX was able to push the edge of the possible towards the desired, this is great! But how many such attempts were there before it, in parallel with it, and will there be more in the future? Many people want it, but not everyone succeeds, not everyone is lucky. The flow of cargo from orbit to Earth is small. But we can expect that the demand for a “soft” descent will create space tourism in LEO; it will definitely be a desired convenience for people - fast, spectacular delivery close to home.
A fundamental problem with using DreamChaser for evacuation is that it demands the Vulcan-Centaur launcher which is years away from matching the launch rate of Falcon9, and by the time it does reach 100 launches per year Starship will have reached 1,000 launches per year! Furthermore Starship can also land at any airport in the world, since the test landing sites at Starbase are built to airport runway standards, and the DoD cargo transport contract will require landing at airports. For that matter Crew Dragon was designed to land at KSC, but *NASA* insists on it splashing down off the coast, possibly to justify their over-spending on the Boing CST-100 Starliner.
@@jamescobban857 Generally speaking, small rescue capsules for emergency evacuation from LEO to Earth are needed now and will be needed in the future, like lifeboats on sea vessels. And the possibility of controlled descent with the ability to maneuver in the atmosphere in range and direction is a very useful and sought-after option. DreamChaser or something else similar will be in demand sooner or later as emergency rescue vehicles in LEO or as comfortable transport for space tourists from LEO to Earth. Only time will tell who will fill this niche.
I love anything to do with space but.. this is a waste of time, the dream chaser can only go into low earth orbit. The ISS will only have about five years left when they get their act together.
That’s just the X 37 Which has been flying now for almost 10 years, so how much is a scam costing the taxpayers?