Originally Posted by
mduell
GE F110/F118 is probably the closest off-the-shelf engine to what Boom needs, and of course the core has common heritage with CFM56. I doubt it has the efficiency Boom needs for TPAC, but at least it's something that exists, and with a bit of de-mil work, Boom could actually buy it.
I don’t think a military application engine will have nearly enough efficiency to make the final aircraft attractive to operators, not to mention it being a possible noise abatement problem.
Boom’s biggest challenge was developing an aircraft that could reach supersonic speed without an audible sonic boom, and I believe that might require a purpose-built engine for a unique airframe design.