My todays addition isn't exactly new - both these ships were already drawn by me in my very first thread:
viewtopic.php?f=12&t=1995
Since then I have obtained better plans and decided to redraw both ships pictured there (correcting in the process a significant error in scaling, thanks to which in previous drawings they were both over a metre too long).
First is Coast Guard patrol craft of the 912 type (Fala class, or Obluze in NATO code). In the years 1965-2008 five such vessels served in the Maritime Brigade of the Border Defence Troops, renamed in 1991 into Border Guard. Picture shows one of the ships during last years of it's service.
It should be noted, that during their service their tactical numbers slightly changed. Initially first three units wore numbers (respectively): OP-301, OP-302 and OP-303, but in 1967 numeration was changed and they were renumbered to OP-321, OP-322, OP-323 and two newly-built units in the series were given numbers OP-324 and OP-325. After formation of Border Guard ship numbers were changed into SG-321, SG-322, SG-323, SG-324, SG-325. (OP means Okręt Pogranicza - Border Ship, SG means Straż Graniczna - Border Guard)
Next is Polish cold war era submarine chaser of the 912M type (Groźny class, or Obluze Mod. in NATO code). Eight such vessels served in the Polish Navy between 1970 and 2004. Picture shows the ship during it's early service - still with MR-104 radar (between mast and funnel).