Engineering Technical Letters (AFETL)  Subscribe to Engineering Technical Letters (AFETL)

Click the 'Title' or 'Date' heading to sort by ascending or descending order.

The ETL Index is available in the following format:  Adobe Acrobat (PDF)

All ETL's have been cancelled or superseded by other publications. For a comprehensive list of all former ETLs—including each ETL's number, title, date of publication, and status—consult the ETL Index below.