Question: Which airline, that flew only with foreign models, is the largest airline of the Russian Federation?
Context: The Tupolev ANT-9 (Russian: "Туполев АНТ-9") was a Soviet passenger aircraft of the 1930s.  It was developed as a reaction to the demand for a domestic airliner.  At this time Deruluft, one of the forerunners of Aeroflot, flew only with foreign models, which were mainly German or Dutch. Igor Yevgeniyevich Levitin (Russian: Игорь Евгеньевич Левитин ) ( 21 February 1952, Tsebrykovo, Odessa Oblast) is a Russian political figure, Aide to the President of the Russian Federation since September 2013, and Class 1 Active State Advisor of the Russian Federation (2013).  He previously served as the Minister of Transport of the Russian Federation (from 9 March 2004 until 21 May 2012).  He is the Chairman of Supervisory Board of the Table Tennis Federation of Russia.  He is also a member of the President Advisory Council at the International Table Tennis Federation (ITTF). PJSC AeroflotRussian Airlines (Russian: ПАО "Аэрофло́т-Росси́йские авиали́нии" , "ПAO Aeroflot-Rossiyskiye avialinii" ) (), commonly known as Aeroflot ( or ) (Russian: Аэрофлот , English translation: "air fleet", ] ), is the flag carrier and largest airline of the Russian Federation.  The carrier is an open joint stock company that operates domestic and international passenger and services, mainly from its hub at Sheremetyevo International Airport. Hero of Labour of the Russian Federation (Russian: Герой Труда Российской Федерации ) is a state award of the Russian Federation.  The title is awarded to citizens of the Russian Federation for special services in labour to the state and its people associated with the achievement of outstanding results in public, social and economic activities aimed at ensuring the welfare and prosperity of Russian Federation. The Honorary Title of "Honoured Military Pilot of the Russian Federation" (Russian: Заслуженный военный лётчик Российской Федерации ) is a state award of the Russian Federation that can trace its history to the Soviet Era.  It was initially established on January 26, 1965 by Decree of the Presidium of the Supreme Soviet № 3230-VI as the honorary title of "Honoured Military Pilot of the USSR" (Russian: Заслуженный военный лётчик СССР ).  Following the dissolution of the Soviet Union in 1991, the title was retained by the Law of the Russian Federation 2555-1 dated March 20, 1992 and renamed "Honoured Military Pilot of the Russian Federation". Citizenship of Russia is regulated by the federal act regarding citizenship of the Russian Federation (of 2002, with the amendments of 2003, 2004, 2006), Constitution of the Russian Federation (of 1993), and the international treaties that cover citizenship questions to which the Russian Federation is a party.  In accordance with the supremacy clause of the Constitution, international treaties of the Russian Federation have precedence over Russian domestic law. The Irbit State Motorcycle Museum was created as a State Museum of the Russian Federation to protect the former IMZ Factory Museum from sale and dispersal.  The museum was officially opened on June 25, 2004 as the Irbit Motorcycle Museum.  The keystone of the museum was the collection of the Design Department of the IMZ factory acquired by local authorities in 2002.  It is temporarily housed in a building at 100a Ulitsa Soviestskaya, in Irbit, while a permanent home is built in Ulitsa Lenina.  It received the status of a State Museum of the Russian Federation on January 1, 2006.  The museum contains an extensive collection of production, racing and prototype bikes from the IMZ-Ural Factory as well as many foreign models from a wide range of manufacturers.  The collection is unique in its display of the development of the Russian heavy motorcycle. The Order of Alexander Nevsky (Russian: орден Александра Невского ) is an order of merit of the Russian Federation named in honour of saint Alexander Nevsky (1220–1263) and bestowed to civil servants for twenty years or more of highly meritorious service.  It was originally established by the Soviet Union as a military honour during World War II, more precisely by Decree of the Presidium of the Supreme Soviet of the USSR of July 7, 1942.  Its statute was amended by Decree of the Presidium of the Supreme Soviet of the USSR of February 26, 1947.  It bears a similar name to the Imperial Order of St. Alexander Nevsky which had been established by Empress Catherine I of Russia in 1725, and continued to be bestowed by the heads of the House of Romanov after the 1917 Russian Revolution.  The Order of Alexander Nevsky was reinstated by the Soviet Union, minus the words "Imperial" and "Saint", for award to officers of the army for personal courage and resolute leadership.  The Order was retained by the new Russian Federation following the dissolution of the USSR by Decision of the Supreme Soviet of the Russian Federation 2557-I of March 20, 1992 but was never awarded.  The September 7, 2010 Decree №1099 of the President of the Russian Federation redesigned the badge of the Order closer to pre-1917 imperial model and amended the statute of the Order making it a purely civilian award. The Chairman of the Government of the Russian Federation (Russian: Председатель Правительства Российской Федерации, Romanized: "Predsedatel' Pravitel'stva Rossiyskoy Federatsii" ), colloquially referred to as the Prime Minister (Russian: Премьер-министр, Romanized: "Prem'yer-ministr" ) is the head of the Russian government and the second most powerful figure of the Russian Federation.  The official residence of the prime minister is Gorki-9 in Odintsovsky District, Moscow Oblast, but his working residence is in Moscow (Russian White House).  Under Article 24 of the Federal Constitutional Law "On the Government of the Russian Federation", "heads the Government of the Russian Federation".  The Russian Prime Minister is considered the second highest position in the government, after the President. The Abmassador of Latvia to the Russian Federation is the official representative of Latvia to the Russian Federation.  The Representative has the rank of full ambassador and is appointed by the President.  The full official title of the Representative is Ambassador of Latvia to the Russian Federation, with the rank and status of Ambassador Extraordinary and Plenipotentiary.  The current Latvian Ambassador to the Russian Federation is Māris Riekstiņš.
Answer: Aeroflot