sentences:  Penetration is around of RHA.In August 2018, Rafael disclosed the development of an enhancement of the missile called the Spike-ER II.It retains the same weight, airframe, surface geometries, and propulsion unit but introduces a two-way RF data-link to increase real-time control to an extended range of from helicopters; it also has an extended fiber optic link to increase range to from land and naval platforms.