By Matt Russell In news from the Farnborough Air Show happening this week (you thought Oshkosh was it?), Boom Supersonic is making fresh, um, shockwaves by announcing a partnership with Northrup Grumman that should help the startup access military aviation business. Colorado-based Boom showed a Northrup Grumman co-branded rendering that includes refinements to the airliner it calls Overture. In a nice way, the Overture smacks of the legendary Convair B-58 Hustler, thanks to its modified delta wing over four cigar-shape “medium-bypass” turbojet engines on pylons, and a carefully “area-ruled” fu…