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Non-ballistic atmospheric entry is a class of atmospheric entry trajectories that follow a non-ballistic trajectory by employing aerodynamic lift in the high upper atmosphere. It includes trajectories such as skip and glide. [1] [2] Skip is a flight trajectory where the spacecraft goes in and out the atmosphere.
Ablative armor is armor which prevents damage through the process of ablation, the removal of material from the surface of an object by vaporization, chipping, or other erosive processes. In contemporary spacecraft, ablative plating is most frequently seen as an ablative heat shield for a vehicle that must enter atmosphere from orbit, such as ...
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Energy shield from the game Second Life. In speculative fiction, a force field, sometimes known as an energy shield, force shield, energy bubble, or deflector shield, is a barrier produced by something like energy, negative energy, dark energy, electromagnetic fields, gravitational fields, electric fields, quantum fields, telekinetic fields, plasma, particles, radiation, solid light, magic, or ...
Soft Armor Fragmentation 9×19mm FMJ: US Army soft armor inserts adhere to standards specified under FQ/PD 07–05. [18] They are required to stop the following ballistic and fragmentation threats: 2-grain (0.13 g) RCC (Right Circular Cylinder) at a velocity (V 50) of 2,710-foot-per-second (830 m/s) when dry and 2,575-foot-per-second (785 m/s ...
The Ballistic Research Laboratory at the Aberdeen Proving Ground, which later became a part of the Army Research Laboratory, initiated the development of a version that year named Burlington, adapted to the specific American situation, characterised by a much higher projected tank production run and the use of a thinner rolled steel main armour.
With the test of the PAD missile, India became the fourth country to have successfully developed an Anti-ballistic missile system, after United States, Russia and Israel. [9] On 6 March 2009, India again successfully tested its missile defense shield, during which a test "enemy" missile was intercepted at an altitude of 75 km. [10]
Ceramic armor is armor used by armored vehicles and in personal armor to resist projectile penetration through its high hardness and compressive strength. In its most basic form, it consists of two primary components: A ceramic layer on the outer surface, called the "strike face," backed up by a ductile fiber reinforced plastic composite or metal layer.