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"The lack of a catapult system on board the Admiral Kuznetsov has hampered the ability of pilots to operate at sea, forcing them to carry fewer weapons and less fuel when they take-off from a specially built ramp," The Times wrote on Wednesday, November 30.

In addition, only a limited number of Russian pilots have the required level of training to take-off or land on a carrier, according to Igor Sutyagin, a senior research fellow at the Royal United Services Institute.

The aerial photos made on November 20 and published by the IHS Jane's magazine, 8 Russian Su-33 and one MiG-29 are seen at the Russian base in the Syrian province of Latakia. Previously those jets were known as belonging to the Admiral Kuznetsov's wing.

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The Russian fleet arrived in the eastern Mediterranean earlier this month.

Read alsoRussia's major offensive in Syria: airstrikes on Aleppo resumeAs was reported earlier, airstrikes hit the rebel-held neighborhoods in eastern Aleppo in the middle of November for the first time in weeks, as Russia announced the start of a major operation in the Syrian provinces of Idlib and Homs involving its aircraft carrier Admiral Kuznetsov.