Support Free Aviation Education
AviationRef is free to use and independently run. Donations cover hosting and the domain.
What Your Support Pays For
Hosting & Domains
Annual hosting and domain registration.
Content Research
Time spent reading source documents and writing up the reference pages.
New Tools
Interactive tools such as the METAR decoder and the ICAO alphabet trainer.
Mobile & PWA
Keeping the site fast and usable offline on phones and tablets.
Other Ways to Help (No Payment Needed)
- Share a page with another student pilot if it was useful.
- Leave a review or mention on aviation forums such as PPRuNe, Reddit r/flying, or r/aviation.
- Link to AviationRef from your blog or website, which helps with search visibility.
- Report errors via the contact page. Corrections are applied and noted on the page.
Why This Page Exists
The site is free and there is no paywall or account to create. Hosting and the domain cost money, and ads plus the occasional donation cover that. If you would rather not contribute, use the site anyway; that is what it is for.