It looks like Boeing is leveraging its experience with the AH-64 Apache for its proposals.

The first proposal is a modification of it’s AH-6 “Little Bird” helo, with a 15 inch fuselage plug to allow space for extraction of downed airman, and a reprofiled nose to accommodate more avionics.

Interestingly enough, it eschews the common avionics architecture system (CAAS) for cockpit instrumentation that was used on the now canceled ARH-70, instead using a derivative of the suite on Boeing’s own AH-64 helicopter, along with rotor blades also derived from the Apache.

Of course, this is still a single engined helo, and Boeing is proposing a cut down version of the AH-64 “Apache Lite” if the army insists on two engines.