The F-106 had an internal weapons bay itself (probably the F-102 did as well, but I only checked the -106). As for the other, unless it results in a measurable performance improvement, it's just a neat feature checkbox that means nothing in the real world. Honestly, I don't get the Arrow love around here, but maybe that's because I'm a Texan, not a Canadian...
Avro Canada Arrow - a cancelled Canadian built fighter jet
+
AlternativeHistory.com - a site dedicated to the descussion of different courses of history, with a good few Canadian Members
=?
Edit.
Sorry if this is insulting.
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