article_snippet: The introduction of The Blackjack follows sorties by other Russian aircraft near Cornwall last month which disrupted commercial flights and sparked major security fears.
article_snippet: The first two revamped Blackjacks passed a series of test flights last December and have now been passed for service.
article_snippet: Ten more Blackjacks will be modernised before 2020.
article_snippet: Dr Sutyagin added that the Blackjacks’ revamp was part of a plan by President Putin to boost both Russia’s arsenal of military hardware and Russia troop numbers.