The V force specification called for the carriage of a 10,000 bomb for all three V bombers. On the Valiant the nosewheel was designed to be retracted independently from the nosewheel bay to cater for this. The B29 that carried 'Fat Boy' (Nagasaki) had to be jacked up by the mainwheels to get it in.
As there is a noticeable lack of black Omegas in my part of the woods I can venture the opinion, as a totally disinterested observer that, if the political situation warranted it, they may have been possibly bombed up before they were dispersed.