Without further ado, here are 12 common military hand signals you might have seen in the movies, and what they mean. Read more: 12 Hand Tools That Are Actually Worth Buying On Amazon.

The other hand will point to the engine that is supposed to start, a key concern in multi-engine aircraft. Shutting down an engine is no less critical and can also be a complex task for the pilot.

If you could choose only two things as a staple of any war movie, they'd probably be military jargon (like "roger" in military aviation) and hand signals. Whether it's Easy Company deep behind ...