Space

8816 readers

39 users here now

Share & discuss informative content on: Astrophysics, Cosmology, Space Exploration, Planetary Science and Astrobiology.

Rules

Be respectful and inclusive.
No harassment, hate speech, or trolling.
Engage in constructive discussions.
Share relevant content.
Follow guidelines and moderators' instructions.
Use appropriate language and tone.
Report violations.
Foster a continuous learning environment.

Picture of the Day

The Busy Center of the Lagoon Nebula

Related Communities

🔭 Science

🚀 Engineering

🌌 Art and Photography

Other Cool Links

founded 2 years ago

MODERATORS

[email protected]

Stoke Space successfully conducted a vertical takeoff and vertical landing (VTVL) developmental test flight of their reusable second stage rocket (www.stokespace.com)

submitted 1 year ago by [email protected] to c/[email protected]

5 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 8 points 1 year ago (3 children)

There is video, but I can only find on Twitter presently: https://twitter.com/stoke_space/status/1703569700540883195

[–] anindefinitearticle 4 points 1 year ago (1 children)

From the wiki page linked here, this looks like a toroidal spike. I wonder what sort of gas they use for the base bleed.

Several versions of the design exist, differentiated by their shapes. In the toroidal aerospike the spike is bowl-shaped with the exhaust exiting in a ring around the outer rim. In theory this requires an infinitely long spike for best efficiency, but by blowing a small amount of gas out of the center of a shorter truncated spike (like base bleed in an artillery shell), something similar can be achieved.

[–] [email protected] 4 points 1 year ago

Pretty sure those are several small distinct engines, but at high altitude with a large expansion ratio it will kind of work like an aerospike

load more comments (1 replies)