Does ARCAspace's Water & Electric Powered Rocket Make Sense?

ARCA have demonstrated their concept of a clean, reusable booster powered by electricity and water instead of all those dangerous rocket propellants. Sounds to good to be true right?

ARCA are largely based in Romania, but also developed aerospike propulsion test hardware in the US for a time.

All the ARCA footage comes from their Youtube Channel which shows their ongoing work with various projects.

Water Tank rocket footage is from Mythbusters:

[britpoint]

"They'll need 50 kilograms of batteries..."

Huh, that doesn't sound too bad.

"...per second"

oh

[eckligt]

Will soon redesign the rocket around mentos and diet coke.

[benjaminkratchmer]

I'm thinking that anyone who understands physics, as well as anyone working for this project, has a pretty clear sense that ARCAspace is less about getting a payload out of a gravity well than it is about getting money out of Kickstarter donors.

[tychothefriendlymonolith]

1:06 I don't trust a rocket company that typos "launch"

[stirhaven]

"Space Travel: Just Add Water!" (batteries not included)

[greenmario]

So they made a rocket with the power consumption of a resistojet, the safety of a boiler, and the efficiency of an SRB.

[NFITC]

1:03
Do rockets not release polluting chemicals at dinner time? Just lunch? Are they less polluting at brunch?

[TheVergile]

everyone: great technology
arca: the only problem is it needs a powercable
everyone: ...what?
arca: its usb-c tho
everyone: great technology

[nathansmith]

1:03 "At *lunch* a chemical rocket releases polluting chemicals.."

guess I'll avoid the cafeteria.. 🤔

[craigcorson]

1:04 "At LUNCH, a rocket releases polluting chemicals into the atmosphere..."
I sometimes have that same problem. 🌮🌮🌮🌯

[catfish]

"Environmentally friendly rocket"... whole bunch of LiPo batteries...


Aight.

[jerry]

CEO: So you’re gonna falsely charge me of fraud eh? I’ll show you some fraud!

*Proceeds to come up with water rocket design*

[jrh]

LOL... Using Hobby King lipo batteries. Best not exceed 15c on the discharge!

[izzieb]

Sounds like the CEO of the company often finds himself in hot water. He should stop pushing his company, take a break and let off some steam.

[camdenbell]

Scott Manly:Refers to that one time Mythbusters blew up a water heater.
Mythbusters fans: That could literally be any episode.

[kerbalengineeringsystems]

Three years later and it's somehow gotten even more off the rails

[SierraSierraFoxtrot]

I applaud anyone who builds hardware and does tests.

[dziban]

Who needs batteries? Just get a really long extension cord

[pyrusrex]

This rocket screams "As Seen on TV" enough that I fully expect to find it in the middle aisle at Walgreens

[TheThanimal]

YouTube's auto subtitles heard the intro as "Oh, hey, it got manly today"