http://www.gutenberg.org/ebooks/subject/18646.opds 2024-10-18T10:26:08Z Books about Airplanes -- Motors (Diesel) (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://www.gutenberg.org webmaster@gutenberg.org https://www.gutenberg.org/gutenberg/favicon.ico 25 1 2024-10-18T10:26:08Z https://sendtokindle.compellingsciencefiction.com/ebooks/31023.opds The First Airplane Diesel Engine: Packard Model DR-980 of 1928 Robert B. Meyer