May 2022. Keel-laying ceremony for the lead passenger vessel of Project HSC150B at Vympel Shipyard.

August 2022. Keel-laying ceremony for the second vessel of the series.

October 2022. Vympel Shipyard shipped the first hull sections of the catamaran. Central hull sections (3.2 t each) and bridge blocks were transported by road from Rybinsk to Irkutsk, specifically to the East Siberian River Shipping Company (ESRSC) Fleet Repair and Maintenance Base.

November 2022.  (Photos via USC Telegram channel)

Bow sections (2.5 t each) were dispatched via low-boy trailers to the assembly site at the ESRSC base, where site preparations for hull assembly are being finalized.

December 2022.  Vympel Shipyard specialists commenced assembly of the lead vessel's hull at the ESRSC industrial site. Slipways have been prepared and keel sections installed. Vympel's outfitting and assembly crews began assembling the central block. The shipyard completed the shipment of all hull sections for the first catamaran. By January 2023, all sections for both catamarans are scheduled for delivery to Irkutsk (Source: www.vympel-rybinsk.ru).

December 2023 (Source: RKO/former RRR website)

Ongoing technical supervision of the Project HSC150B passenger catamarans construction.

June 2024.  The first vessel, Sarma, is being prepared for launch.