Fears surrounding the commercial debut of the China’s Beidou satellite navigation system last week have centered on the development by the Chinese military in recent years of a bomb kit that can transform “dumb” bombs into “smart” ones.

Chief among them is the Lei Shi-6 (LS-6) “Thunder Stone” precision-guided glide bomb first unveiled by the Luoyang Optoelectro Technology Development Center in late 2006. The guidance “fit,” which is attached to conventional bombs and has deployable wings, can support a number of bomb weights, from 50kg to 500kg, Jane’s Defence Weekly reported last year.