You're right. The
Hercules would be the most plausible ... and, technically, fits within
raafif's "1950s/60s/70s" query.
I based my
Lincoln suggestion on the RCAF's pair of
Lancaster 10DC launch aircraft. Which reminds me, should anyone want 'that other scale', Belcher Bits offers a 1/72 KDA-1 kit with
Lanc pylons.
--
http://www.belcherbits.com/lines/172conv/bl6.htm--
http://www.belcherbits.com/images/172conv/bl6inst.pdfAnd that raises a question: Did RCAF
Lancaster 10DCs ever carry twin
Firebees? IIRC, all the photos I have seen of KB848 and KB851 as 'DCs, show them carrying a single KDA-1 (despite twin pylons being fitted),
BTW, on the attached images, note that the
Firebee is wearing USAF markings.