TCG Sultanhisar (P-111), ex-USS PC-1638, was a Hisar-class patrol boat of the Turkish Navy.

She was built in 1963 by Gunderson Brothers Engineering Corp. in Portland, Oregon as a submarine chaser.

[2] Sultanhisar was decommissioned on June 3, 2002[6] as Burak-class corvettes entered service.

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