The twin-engine, tandem-rotor CH-47 Chinook helicopter is one of the world’s most iconic and recognizable military aircraft. But here are some things you may not know about the granddaddy of all heavy-lift helicopters:

https://www.defensenews.com/land/2025/10/13/sikorsky-turns-the-venerable-black-hawk-into-a-true-unmanned-aircraft/

https://issues.verticalmag.com/554/766/1745/V24I5/index.html ?