History
Designed by Zelenodolsk Design, the 900-ton class Project 21631 Buyan-M is a stretched version of the 500-ton Buyan class corvette (Project 21630) that includes
more sophisticated weapons (VLS cells with Kalibr-NK system with P-800 Onix) and the ability to perform anti-surface warfare (ASuW) combat missions with
secondary air defense capability, thanks to four Igla-1M surface-to-air missiles (SAM). The Russian Navy plans to procure a considerable number of this corvettes to
be delivered to the Caspian Sea, Black Sea and Baltic fleets.

Specifications
Length: 75 m / 246 ft
Beam: 11 m / 36 ft
Draft:  2,5 m / 8 ft
Height: 6,57m / 22ft
Displacement: 949 tons full load

Propulsion
2 shaft CODAD, 4 x Zvezda M520, 14,584 shp (10,880 kW)
2 pump-jets
Speed: 26 kn (48 Km/h / 30 mph)
Range: 2,300 nmi (4.300 km; 2.600 mi) at 12 knots
Endurance: 10 days
Crew: 52

Radars, Sensors, Sonar and Communications
Radar: MR-352 Pozitiv-M1.2 phased array radar system
Fire Control: 5P-10-03 Laska
Sonar: Anapa-M suite
Navigational Radar: MR-231 Pal
Electro-optical surveillance device
Decoys: 2 × PK-10 decoy

Armament
1x Arsenal A-190 100mm gun
2× 4 UKSK VLS cells Kalibr-NK system
2× 30 mm AK-630-M2
2× 4 Komar SAM
1× DP-65 anti-saboteur grenade launcher
2x MTPU pedestal machine gun 14.5mm
3× 7.62 mm PKM type
Resin parts included
Single piece waterline resin hull
Sprue with all resin parts for the hull
Complete photo-etch set
Decal sheet for 5 ships of the class
Instruction sheet

Hull
The model is cast as single waterline resin hull piece with acceptable moulded details for a such a small model.
Given the fact this is a waterline model, the quick works (immersed part of the hull) are not represented.

Resin Parts
The main resin sprue includes all necessary parts to be applied on the hull, namely:
FWD Mast and Dome
AFT Mast
Gun Director for the 100mm gun
Different types of Domes
Arsenal A-190M 100mm turret
2× SAM mounts
6x barrel CIWS
RHIB

Photo-Etch Set
Detailed parts for the FWD Mast
Railings
Vertical Ladders
Inclined Ladders
14,5 mm MTPU pedestal machine guns
Whip antennas
Fwd and Aft flag masts
Anchor

Decals
Unfortunately, the decal set included in this model is completely useless. Although pennant numbers and names in Cyrillic for the ships 021, 022, 023, 602 and 603
are included,  all decals are blurred. The photo of the decal sheet speaks for itself, regarding the quality of the decals.

Instructions
The instruction sheet is a fairly simple but provides a complete and clear guide to the correct location of all parts.

Painting Scheme
The WEM Russian Baltic Fleet Grey M20 is the correct option to paint the hull and “vertical” surfaces and the decks should be painted with the Russian Deck Red
M13, both paints produced by
WEM Colourcoats. The Vallejo Colour 982 Cavalry Brown is my suggestion to paint the red colour below the white water line. Due
to thickness of the water line I strongly recommend the use of a very thin white decal stripe, however, but only after painting the black area of the hull.
It is pretty straight forward to build the Buyan-M Class corvette by YG Model in 1:700 scale, however a few modifications are needed in order to produce a more
accurate model, namely the addition of the life rafts and the rails on VLS deck. I also modified the position of the white AFT dome installed on the small structure
close to the AFT Komar SAM mount. The lack of a decent decal sheet is indeed a considerable and annoying hassle now days. It is a welcome kit for all naval
modelers looking forward to complete their modern Russian warships fleet in 1:700 scale.
Ayala Botto
Lisbon, Portugal
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