A military type designation for the type of jet fuel used by the Air Force. Also known as NATO code F-34, introduced in the late 1970's, this kerosene-like fuel has a flash-point of only about 100 degrees F, and if poured out in a line on a suitable combustion surface, it would burn with a flame spread of 100 feet per minute.
Very similar to the jet fuel used in commercial aviation, it contains several additives for lubrication, corrosion inhibitors, anti-static additives, and anti-icing.
Prior to using JP8, the Air Force used JP4 jet fuel.
Unlike JP5, JP8 is much more ignitable, so please do not try to extinguish a match in it at home, kids.