FRENCH late 1970's WARSHIPS STUDIES/NEVER-WERE (for export)
SAPHIR FAC-design
(1970's hydroptère FAC design, derived from the H890 project, with 1x76mm oto melara forward + 2 to 4 MM 38 Exocet or ?Harpoon? aft).
1979 aviso-patrol boat design
(derived from the A69 aviso class).
1979's era C-1800 corvette
(1890 tons full load, with 1x100mm forward, 2xtwin 40mm bofor? or oto-melara ? amidship, 6 x MM 38 Exocet amidship, one octuple Crotale SAM launcher aft, SMALL hanger aft & towed ASW sonar & so...)
1979's era F-2800 frigate
(around 2800/3000 tons full load, with 1x100mm forward, one "strange multiple-rounds system forward" (ASW rockets ???), 2xtwin 30 or 35 or 40mm ??? AA gun near-forward bridge, 6 x MM 38 Exocet amidship, one octuple Crotale SAM launcher aft, MEDIUM hanger aft & towed ASW sonar & so...)
VERY LIKELY the initial/early design for the (1980's built) Saudi F2000/Madina class frigate's !!!
in terms of design, these two (C-1800 & F-2800) designs are derived & "scaled-down" from the famous F-70 (Georges Leygues class/Type F70 : the main French ASW frigate design from 1979 to...late 2010's !!!)