The PL-9 utilizes the airframe modified from the PL-5 and PL-7 missile. The seeker head is fitted with sensors from PL-8 and Python-3 missile. The missile is fitted with a cryogenic liquid nitrogen gas-cooled IR seeker capable of +/-40 degree off boresight angles.
The PL-9 utilizes an airframe derived from the PL-5 and PL-7 missiles, incorporating sensors from the PL-8 and Python-3 missiles. Its seeker head is equipped with a cryogenic liquid nitrogen gas-cooled infrared sensor capable of +/-40 degree off boresight angles.