HALO jumps are used to enter hostile territory undetected when threats to both Airmen and aircraft are expected.
Virgin Spaceship Milestone Flight
Virgin Galactic spaceship made its first engine- powered flight on Monday in a test that moves the company toward its goal of flying into space later this year. While SpaceShipTwo did not break out of the atmosphere during the test flight, it marked a significant milestone for Virgin Galactic, which intends to take passengers on suborbital joyrides. During the early morning flight, SpaceShipTwo, strapped to the belly a twin-fuselage jet, took off from an airport runway in the Mojave Desert north of Los Angeles. This footage shows Virgin Galactic breaking the speed of sound in first rocket-powered flight of SpaceShipTwo.