 Agreements were signed with Russia for co-development and co-manufacture of an uncertain amount of Tu-334 airliners in Iran with production to commence simultaneously both in Iran and Russia.Another agreement with Poltava Helicopter Company of Ukraine allows Iran to manufacture the Aerokopter AK1-3 Sanka ultra-light multi-purpose helicopters in Iran.Yet, Iran says it is prepared to order passenger planes from Boeing and Airbus if the United States lifts sanctions against Iran.