Now I'm confused - are we calling for the original 1950s design victor and bucanneer airframe to be produced as designed?
Are we calling for 1950s design built using 2015 technology? Are we using the 1950s design but modified to the design as it stood in the 1970s, 1980s or 1990s?
Are we calling for 1950s design, using 2015 technology and incorporating modern advances and thus making it an entirely new design?
Its really easy to say 'build an old plane now as that must be cheaper' right up to the point where you realise that to do so means basically building a new airplane, and then you realise its still cheaper to replace Trident with a new SSBN than it is to go down that route.