Assertion: squadron | /r/CapableOf | upgrade to the vulcan b2
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text: The squadron began almost immediately to upgrade yet again to the Vulcan B2, taking delivery of the first on 1 September 1961, although its high-level strategic bombing role remained unchanged until the advent of effective Soviet Surface-to-Air Missiles forced Bomber Command to reassign V-bombers from high-altitude operations to low-level penetration operations in March 1963, when the squadron's Vulcans adopted a mission profile that included a 'pop-up' manoeuvre from 500–1,000 ft to above 12,000 ft for safe release of Blue Steel.