 In 1994, US distribution was transferred to "Mechta Sailplanes, LLC", which imported 18 Russia gliders into the US.In response Aviastroitel created a second set of molds and started a second assembly line in Penza, giving a total production capacity of 48 AC-4s per year.In 1997 William Ayd became US distributor under the name "Russia Sailplanes, Inc." to market the expanding line of Aviastroitel gliders and motor gliders and the two companies enjoyed a successful partnership.