>>63794423Couldn't fit cruise profile/payload with two,
And it was easier to use 3 existing engines than develop a brand new larger/more thrust.
I've done a handful of high level designs for fun of what it would take to make a 2000 mile capable single seater barebones plane from either the largest commercially available hobby jet engines or an "off the shelf" engine i.e. from a citation or honda and the answer, within a set budget, was always to use more small engines. Rocket equation kinda applies to planes too, yeah?
Fun fact the 2100 mile capable with 8% reserve design defined three small jets modified with afterburner, needed to be 89% fuel at MTOW and needed 80% the runway space of a 737.
I wish I was rich.