The guys over at the Smithsonian Channel war-gamed how an Apache could take down a dragon because curating a museum apparently gets boring.
The dragon in their model is straight out of European mythology with huge wings, thick armor, and fire breath:
GIF: Youtube/Smithsonian Channel
The Apache is the same flying merchant of death everyone knows and loves from wars like Desert Storm and Operation Enduring Freedom:
The video goes through a couple of scenarios, looking at how Hellfires and 40mm grenades might affect a flying lizard monster. Check it out below: