medo wrote:Vietnamese Gepards have helicopters and by size they are small frigates. Anyway I think helicopter would be still very useful although Caspian sea in closed sea or large lake, if someone more likes in that way and is divided between five states and rich with gas and oil. Helicopter would be a big help for ship on their duty in patroling and protecting oil fields.
Agree, helicopter onboard is a huge capability.
"The Gepard-class was designed from the outset as a lightweight, inexpensive export vessel. The Russians have offered five variants for foreign sale.
Gepard 1: Helicopter platform (no hangar), VDS deleted.
Gepard 2: Helicopter platform and hangar, VDS and SA-N-4 deleted.
Gepard 3: Increased beam of 13.8 m., displacement increased to 2,100 tons full load, single forward-placed Kortik CIWS in place of AK-630s, helicopter hangar above VDS housing.
Gepard 4: Unarmed version for search-and-rescue, though weapon mountings still in place.
Gepard 5: helicopter platform (no hangar), increased range to 6,000 nmi (11,000 km) at 10 knots (19 km/h) knots, reduced speed of 23 knots (43 km/h), gas turbines replaced with 2 8,000 bhp (6,000 kW) diesels.
The Vietnam People's Navy received in March and August 2011 two Gepard 3.9 class frigates originally ordered in 2006. They were built in Russia at Tatarstan's Gorky Shipbuilding Plant. Vietnam is currently examining a purchase of two more with the possibility that they will be built in Vietnam under license.  
So a Missile frigate. Maybe they sacrifice the chopper for additional VLS.
Not every ship needs a chopper, but at least some in a task force.
If they have a few Gepards with choppers and a few Gepards with increased VLS capability, thats a good thought.