ARCA

[darkenfast]

I'd like to see what happened after the video cut off. That thing had to come down. I'd also like to know what velocity it attained and how much velocity the fully loaded version will get. Finally, what is the purpose of the curved silo-like structure that the test article was perched on?

Frankly, this whole event looked like a poor imitator of Cantrell's Vector launches.

[daedalus1]

I'd like to see what happened after the video cut off. That thing had to come down. I'd also like to know what velocity it attained and how much velocity the fully loaded version will get. Finally, what is the purpose of the curved silo-like structure that the test article was perched on?

Frankly, this whole event looked like a poor imitator of Cantrell's Vector launches.

Looking closely at the video, I've concluded it was as or close to zero speed when the exhaust stopped. This implies that it was shot out that tower and there was zero thrust from the 'engine'. That wrap around fin would have enabled the push. It certainly would be a hindrance for any rocket engine to work efficiently.

[niwax]

Some data extracted from the video: Acceleration about 0.7g for some 3.5s before the rocket leaves the frame, reaching 26m/s at 48m without payload and upper stage. Assuming their editing is honest, it hits apogee at about 7s, so I would expect engine cutoff not much past 4s. The trail up to apogee appears to just be residual steam, not producing thrust.

So it is certainly accelerating on its own, and giving Estes smaller motors real competition in the process.

[Gliderflyer]

Someone found this drone shot of the launch on Instagram: https://www.instagram.com/p/CWtRrGdAYrp/
(edit: here is a direct video link if the above doesn't work)

It cuts off right before it hits the end of the tether and stops unfortunately.

You can see the tether and anchor pretty well in the beginning before takeoff (the sphere on the lower right), judging by the blue color the tether is probably Dyneema.

[Jrcraft]

Arca got CAA clearance to launch Ecorocket.

[Jrcraft]

https://www.instagram.com/p/CaIN4piKAVp/

ARCA unveiled the upgraded stages I and II of EcoRocket before shipping to the naval base for the launch preparations for Mission 10C-2 that is going to take place from the Black Sea between March-April 2022.
Mission 10C-2 received the launch clearance from the Civil Aviation Authority for this first flight up to an altitude of 20km. The second stage use an engine with ejection augmented thrust.

What it all that is holy is that?

[Redclaws]

https://www.instagram.com/p/CaIN4piKAVp/

ARCA unveiled the upgraded stages I and II of EcoRocket before shipping to the naval base for the launch preparations for Mission 10C-2 that is going to take place from the Black Sea between March-April 2022.
Mission 10C-2 received the launch clearance from the Civil Aviation Authority for this first flight up to an altitude of 20km. The second stage use an engine with ejection augmented thrust.

What it all that is holy is that?

As far as can be told, a *really* long winded scam.  Very odd.

[Phil Stooke]

That's where they shovel the coal into the boiler.

[Asteroza]

https://www.instagram.com/p/CaIN4piKAVp/

ARCA unveiled the upgraded stages I and II of EcoRocket before shipping to the naval base for the launch preparations for Mission 10C-2 that is going to take place from the Black Sea between March-April 2022.
Mission 10C-2 received the launch clearance from the Civil Aviation Authority for this first flight up to an altitude of 20km. The second stage use an engine with ejection augmented thrust.

What it all that is holy is that?

As far as can be told, a *really* long winded scam.  Very odd.

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

[Gliderflyer]

[PM3]

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

That is the microwave radiator of the flux compensator. It is made of prefabulated amulite and will engage at Warp 3, to prevent any fumbling of the lunar waneshaft.

[rubicondsrv]

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

how is a combination of aerospike and air augmented rocket supposed to work? especially without a duct?

or is this just supposed to look good for clueless investors? 

     

[Stan-1967]

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

That is the microwave radiator of the flux compensator. It is made of prefabulated amulite and will engage at Warp 3, to prevent any fumbling of the lunar waneshaft.

It could be any of the above,  but My keen eye sees a pony in that photo.

[libra]

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

how is a combination of aerospike and air augmented rocket supposed to work? especially without a duct?

or is this just supposed to look good for clueless investors? 

   

Do you mean, a DUCK ?

https://getyarn.io/yarn-clip/3c6846ad-59e6-4a4a-a3a3-5579f9a4e3d4

Now, if ARCA rocket is towed by a swallow (whatever the continent) with some coconuts...

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

That is the microwave radiator of the flux compensator. It is made of prefabulated amulite and will engage at Warp 3, to prevent any fumbling of the lunar waneshaft.

Is it connected to the turboencabulator drive ?

[trimeta]

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

how is a combination of aerospike and air augmented rocket supposed to work? especially without a duct?

or is this just supposed to look good for clueless investors?

The video seems to suggest that in the "real" EcoRocket, the first stage will use this "thrust augmenter" instead of an aerospike, while only the second stage will use the aerospike. But for the upcoming test, there will be no first stage, so they fitted the thrust augmenter in place of the aerospike on the second stage. So much for "test as you fly"...

[SpeakertoAnimals]

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

how is a combination of aerospike and air augmented rocket supposed to work? especially without a duct?

or is this just supposed to look good for clueless investors? 

   

Do you mean, a DUCK ?

https://getyarn.io/yarn-clip/3c6846ad-59e6-4a4a-a3a3-5579f9a4e3d4

Now, if ARCA rocket is towed by a swallow (whatever the continent) with some coconuts...

Wait, so that tail thing is a tail augmentor duct mounted on the spike? Is that showing it after it's ejected? They say second stage, but the size suggests possibly a first stage augmentor duct?

or is that just a counterweight ring to hold the aft end down when floating in the ocean?

That is the microwave radiator of the flux compensator. It is made of prefabulated amulite and will engage at Warp 3, to prevent any fumbling of the lunar waneshaft.

Is it connected to the turboencabulator drive ?

Yes, but the casing is made of tungsten cowhide to align the blood plasma phase differential.

[sandrot]

It must be 10 or more years since I last posted on NSF, ARCA you have a dubious honor.

Does this look more like fiberglass or composite? For my little knowledge (I remember seeing what New Glenn's fairings are made of), it looks more like fiberglass.

[Gliderflyer]

It must be 10 or more years since I last posted on NSF, ARCA you have a dubious honor.

Does this look more like fiberglass or composite? For my little knowledge (I remember seeing what New Glenn's fairings are made of), it looks more like fiberglass.

Yep, all their rockets are fiberglass. They have some form of interior insulation on this one (due to the high water temps), but I don't know if they have said what it is.

[Lars-J]

Thrust augmented nozzle? Rather a thrust reduction nozzle, since they have cut out 4 massive section of the bell nozzle. This is peak ARCA! 

[Gliderflyer]

Thrust augmented nozzle? Rather a thrust reduction nozzle, since they have cut out 4 massive section of the bell nozzle. This is peak ARCA! 

I can't find the source, but someone had an image from a paper on an air augmented rocket nozzles that had holes similar to that. The bigger issue is that their duct is probably too short.