HSL-40 Airwolves Squadron Patch -Sew OnAviators! Are you looking for a high-quality patch you'll proudly wear or display? Look no further than the HSL-40 Airwolves Patch!4" patchEmbroideredUS Naval Aviator Owned BusinessSew OnPlastic Backing (increases rigidity; the patch lasts longer and stays flat)ReproductionHelicopter Anti-Submarine Squadron Light 40US NavyHSL-40 : AirwolvesUnited States Naval AviationAirwolves, tail code HK, established on 04 October 1985.On 1 November 2009, Helicopter AntiSubmarine Squadron Light FORTY (HSL-40) was redesignated Helicopter Maritime Strike Squadron FORTY ( HSM-40 )