Aerial Mine

The Aerial Mine was a type of mine specifically developed for use against aerial vehicles. It functions by using a balloon system similar to the Fulton recovery system to float in midair.

History
During the Peace Walker Incident in 1974, the Militaires Sans Frontieres procured design specs for the Aerial Mine system while attempting to rescue a FSLN POW at the Los Cantos Region. They put it to use against various Choppers later on, and also upgraded it.

In-game descriptions
"A self-detonating explosive charge that floats in midair using the same type of balloon as the Fulton recovery system, designed for aerial ambushes. It can be quite effective as a mine against helicopters and other craft that fly at a high altitude."

- Aerial Mine description from Metal Gear Solid: Peace Walker