The Type 91 air-to-ship missile (91å¼Â空対è¦èªÂå°Âå¼¾, ASM-1C) is an anti-ship missile developed in Japan.
An air-launched variant of the SSM-1, the ASM-1C is carried by Japan Maritime Self-Defense Force P-3C Orions and their successor, the Kawasaki P-1.