Can I promote my aerospace product or service here?
No. The rule 'No self promo' says self promotion or other solicitations will be removed and the user banned. You cannot promote directly here.
Subreddit guides
r/AerospaceEngineering rules, stats, and what to post
A source-backed Rankhog guide to r/AerospaceEngineering: public rules, community context, posting fit, and startup-promotion risk before you publish.
By Anthony Riera, founder and operator of Rankhog.
Subreddit guides combine public Reddit source URLs, captured rules, visible verification dates, and Rankhog's account-safety workflow.
Current public stats
- Members
- 145,139
- Verified
- September 18, 2026
- Category
- Science and space communities
Rules can change, so Rankhog keeps verification dates and the original public Reddit sources visible.
Rule summary
- No low effort posts: Posts must be substantive and aerospace related.
- No career or University Questions: All career and university questions should go in the monthly mega thread. Posts on the main page will be removed.
- No imaginary aerospace: CGI, hand-drawn, or otherwise imaginary aircraft or spacecraft should be posted to r/ImaginaryAviation.
- No homework questions: Homework questions will be removed. Check the Wiki for homework related info.
- No self promo: Self promotion or other solicitations will be removed and user banned.
- No questions about lift: For the love of God do not ask how lift works. If you absolutely have to ask, direct the question to the monthly mega thread.
- No unprofessional comments: Being rude, crass, racists, sexists, etc, will result in a ban.
- No answering questions if you are not knowledgeable: Answers must contain an explanation using engineering logic, and assertions of fact must be supported by links to credible sources.
Works well
- A detailed technical post about a real aerospace system or concept, written with engineering logic and backed by credible source links.
- A knowledge-sharing post about an aerospace topic that would interest enthusiasts, hobbyists, and professionals alike.
- A career or university question posted in the monthly megathread instead of the main page.
Avoid
- Posting any self promotion or solicitation, since the rule 'No self promo' says you will be banned.
- Asking career or university questions on the main page, because 'No career or University Questions' sends those to the monthly megathread.
- Posting homework questions, as 'No homework questions' says they will be removed.
- Asking how lift works as a standalone post, since 'No questions about lift' directs that to the megathread.
- Posting CGI, hand-drawn, or imaginary aircraft or spacecraft, which 'No imaginary aerospace' says belongs elsewhere.
- Making rude, crass, racist, or sexist comments, because 'No unprofessional comments' results in a ban.
What r/AerospaceEngineering Is For
This community is a forum for enthusiasts, hobbyists, and professionals to share knowledge and experience about aerospace topics. The description says people come here to learn about aerospace. The rules reinforce that the content must be substantive and aerospace related, with no room for career questions, homework, or imaginary designs on the main page.
Rules That Matter Before Posting
The rule that matters most for anyone doing marketing is 'No self promo'. It does not say your post will be removed. It says you will be banned. That is the harshest version of a self-promotion rule I see in the evidence. The rule 'No low effort posts' also matters because anything thin or tangential will not survive. If you are answering questions, the rule 'No answering questions if you are not knowledgeable' requires you to back factual claims with links to credible sources, so a casual or vague reply will not cut it.
What To Post
A good post here is a substantive, aerospace-related contribution that shares real knowledge or experience. You might write a detailed technical breakdown of an aerospace concept, supported by credible source links if you make factual claims. You could share an observation about a real aircraft or spacecraft system, grounded in engineering logic. If you have a career or university question, it goes in the monthly megathread, not on the main page. There is no observed top post data to model from, so the safest path is to match the spirit of the description: share knowledge that an enthusiast, hobbyist, or professional would genuinely learn from.
What To Avoid
Do not post any self promotion or solicitation. The rule 'No self promo' says you will be banned, not just removed. Do not ask career or university questions on the main page, because 'No career or University Questions' sends those to the monthly megathread. Do not post homework questions, since 'No homework questions' says they will be removed. Do not post CGI, hand-drawn, or imaginary aircraft or spacecraft, because 'No imaginary aerospace' redirects those to another community. Do not ask how lift works on the main page, because 'No questions about lift' pushes that to the megathread. Do not make rude, crass, racist, or sexist comments, because 'No unprofessional comments' results in a ban. And if you answer a question, do not do it without real knowledge, because 'No answering questions if you are not knowledgeable' requires engineering logic and credible source links.
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Common questions about r/AerospaceEngineering
Can I ask about aerospace careers or university programs?
No. The rule 'No career or University Questions' says those go in the monthly megathread and main page posts will be removed.
Can I post a homework question if it is about aerospace?
No. The rule 'No homework questions' says homework questions will be removed and points you to the wiki instead.
What can I post on the main page?
You can share substantive aerospace knowledge, experience, or discussion topics that are relevant to enthusiasts, hobbyists, and professionals, as long as nothing is promotional.
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