HDMS Flyvefisken (P550)

{{Infobox ship image

| Ship image=Zemaitis 6448.JPG

| Ship caption=LNS Žemaitis patrol vessel employed by Lithuanian Naval Force

}}

{{Infobox ship career

| Hide header=

| Ship country=Denmark

| Ship flag={{shipboxflag|Denmark|naval}}

| Ship name=Flyvefisken

| Ship owner=

| Ship namesake=

| Ship ordered=

| Ship builder=

| Ship laid down=15 August 1985

| Ship launched=26 April 1986

| Ship acquired=

| Ship commissioned=19 December 1989

| Ship decommissioned=30 May 2008

| Ship in service=

| Ship out of service=

| Ship struck=

| Ship reinstated=

| Ship honours=

| Ship honors=

| Ship fate=

| Ship status=

| Ship notes=

}}

{{Infobox ship career

| Hide header=title

| Ship country=Lithuania

| Ship flag={{shipboxflag|Lithuania|naval}}

| Ship name=Žemaitis

| Ship owner=

| Ship namesake=

| Ship ordered=

| Ship builder=

| Ship laid down=

| Ship launched=

| Ship acquired=

| Ship commissioned=July 2008

| Ship decommissioned=

| Ship in service=

| Ship out of service=

| Ship struck=

| Ship reinstated=

| Ship identification=*{{MMSI Number|277154000}}

• Callsign: LYPA

| Ship honours=

| Ship honors=

| Ship fate=

| Ship status=

| Ship notes=

}}

{{Infobox ship characteristics

| Hide header=

| Header caption={{cite web |url=http://www.naval-technology.com/projects/fly/specs.html |title=Specifications: Flyvefisken Class (SF 300) Multi-Role Vessels - Naval Technology |publisher=www.naval-technology.com |accessdate=2009-11-26 |archive-date=2009-06-01 |archive-url=https://web.archive.org/web/20090601163126/http://www.naval-technology.com/projects/fly/specs.html |url-status=dead }}

| Ship class={{sclass|Flyvefisken|patrol vessel}}

| Ship displacement=*{{convert|320|t|LT|0|lk=out}} light

• {{convert|450|t|LT|0}} full load

| Ship length={{convert|54|m|ftin|abbr=on}}

| Ship beam={{convert|9|m|ftin|abbr=on}}

| Ship draught={{convert|2.5|m|ftin|abbr=on}}

| Ship draft=

| Ship propulsion=2 × MTU 16V 396TB94 diesels {{convert|4226|kW|abbr=on}} total

| Ship speed={{convert|20|kn}}

| Ship range={{convert|3860|nmi|km|abbr=on}} at {{convert|18|kn|abbr=on}}

| Ship complement=19-29 depending on role

| Ship sensors=

| Ship EW=

| Ship armament=*1 × OTO Melara 76 mm/62 gun

• 2 × 12.7 mm machine guns

| Ship armour=

| Ship armor=

| Ship aircraft=

| Ship aircraft facilities=

| Ship notes=

}}