Well the P-3 definitly is able to carry it : "The aircraft can carry a variety of weapons internally and on wing pylons, such as the Harpoon anti-surfacemissile, the MK-50 torpedo and the MK-60 mine."
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http://www.fas.org/man/dod-101/sys/ac/p-3.htm
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http://www.globalsecurity.org/milita...rcraft/p-3.htm
Cheers
OS