Greg Hennessy commenting on the BFM abilities of the
Vigilante...opined thusly:

Given its wing area I wouldnt be surprised. A J58 engine'd version with
bubble canopy and a flat belly could well have been a contender.

Respectfully...are you making your statement simply because the RA-5
had a huge wing area?

Based upon that, would you surmise the MiG-31 with huge motors is a
good BFM platform? I would not.

Juvat