HackerTube.dev

Is SpaceX's Raptor engine the king of rocket engines?

Everyday Astronaut · 5.4M views · 2019-05-25 · 49:02

Open on YouTube ↗

If playback is restricted in your region, try opening the original video. Use Mark watched to add it to your marked videos.

Overview

Everyday Astronaut explains the basic physics of rocket engines, the main engine cycles and fuel types, then compares SpaceX's methane-fueled full-flow staged combustion Raptor to other engines. It runs nearly 50 minutes with chapter markers.

On Hacker News

HN commenters send people here as the best accessible starting point for understanding why Raptor and fuel choice matter for Starship.

Recommended by 4 HN people across 4 months · HN mentions 2019–2022

Topics

Search by tags

What people said

DisjointedHunt · 2022-02 · Strong recommendation

Because the assumptions made for one class of payload don't apply to another class of payload with vastly different mission specifications. A great place to start is this amazing video by The Everyday Astronaut: [VIDEO] Notice how the type of fuel used itself is a consideration for the type of rockets we may send to Mars if we're considering In-Situ refueling.

Read the original HN comment ↗
DennisP · 2019-11 · Strong recommendation

NASA's big project for launch is a disposable rocket using Space Shuttle technology. It will cost at least a billion dollars per launch. SpaceX's project is a fully reusable rocket, with rapid turnaround because it uses methane fuel in the world's first clean-burning full-flow engine. They expect to be able to launch three times per day. On top of that the rocket is built of cheap stainless steel instead of carbon fiber. With that amount of reuse, each launch basically pays for fuel and ground support, each of which costs about a million dollars per launch. Given their payload of at least 100 tonnes, that's $20/kg. They've already done a single-engine hop test, and hope to reach orbit within six months. Here's a great video on what makes the new SpaceX engine revolutionary: [VIDEO]

Read the original HN comment ↗
kiratp · 2022-11 · Recommendation

SpaceX is making significant breakthroughs that you can appreciate if you understand the tech. > As of 2019, only three full-flow staged combustion rocket engines had ever progressed sufficiently to be tested on test stands; the Soviet Energomash RD-270 project in the 1960s, the US government-funded Aerojet Rocketdyne Integrated powerhead demonstration project in the mid-2000s,[6] and SpaceX's flight capable Raptor engine first test-fired in February 2019. [LINK] If you want to learn more [VIDEO]

Read the original HN comment ↗

Sources

Video by Everyday Astronaut, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

Views, duration and playback status refresh separately from the published catalog. When an update fails, existing data remains visible.

Selection checks
  • SaaS & AI candidates: Topic keywords do not match
  • Editor-approved picks: Editorial review is required

Rule matches identify candidates. They do not guarantee video quality or financial results.

About the library and its sources