zen #2: Victor flew higher, faster and further, while carrying more.
But we did not know that till 1963, by when the primacy of Vulcan had been secured...by no issue of comparative performance.
Expensive insurance duplication had been UK Bomber practice from 1933 and, remarkably, continued with concurrent R&D funding of Mk. 2 Victor+Vulcan, 31/5/56, all on UK account as US declined Mutual Defense funding. Mk.2 production orders were then duplicated, 6/56: 35/Victor, 49/Vulcan (some of each redefined Mk.1 orders), plus 30 more Victor, 40 more Vulcan by Sandys at Defence, 6/57: so 65 Victor, 89 Vulcan B.2 on order when he addressed what they were to carry. AWRE/ROF would not be capable of building 154 H-Bombs quickly.
8/8/57, he made a Memorandum with DoD, in force 4/8/58, accessing US loan Bombs and integrating "nuclear strike plans...inextricably linked" wef 1/7/58 (Wynn,P.262). B-28 licence was secured 29/10/58, so Yellow Sun became a few Mk.1, and B-28 as Red Snow/Yellow Sun 2 entered inventory 7/61....intended to be interim pending Skybolt ALBM. Memorandum, 6/6/60, Sister Firm: Avro Weapons Research Div (bereft of new work since CAS 1/1/60 abandoned any enhancement, to concentrate them on actually producing Mk.1). Fraternally, Avro-the-a/c-firm advised Sandys (moving 14/10/59 from MoD to MoS, industrial sponsor of UK-Aero) that Victor B.2 could not carry Skybolt.
Here and yon that has been dissed...but it was what the Minister wanted to hear. He had instructed UK-Aero 9/9/58 to tender for (to be) TSR.2 in teams, intending the winning airframe and the winning engine teams then to merge (as would emerge as BAC, BSEL). Sir Geo DH wanted none of it, but he had retired from his own business; Sir Fred HP wanted none of it...and had not. DH found a way to agree equity valuation and were subsumed into HS Grp; Sir Fred's valuation of his business found no likes. So Victor B.2 orders were reduced to 34, intended to be 24/Blue Steel (that became 16+8 SR.2). Nobody cared to confuse Ministers with potential a/c capability comparisons..