The type of fairing which separates into two halves upon jettisoning is called a clamshell fairing by way of analogy to the bifurcating shell of a clam.
Payload Specialist | Aircraft fairing | Payload fraction | Fairing | fairing | Columbus – External Payload Facility |
This configuration incorporated the payload fairing used on the Zenit-3F rocket, and a special adaptor for the Fobos-Grunt spacecraft, which incorporated a Fregat-derived propulsion system.