Also, re "armed" - it is, as you would expect, billed as multirole. The V-247 has two side bays and one underfuselage. The side bays can carry fuel, sonobuoys, lidar sensor, or two Hellfire or JAGM missiles. The underfuselage bay can carry a Mk50 torpedo, AIM-9X missile, 360-deg-scan surveillance radar or more fuel.
With a gross weight of 29,500lb, the V-247 can carry 13,000lb of fuel, sensors and/or weapons. It is a big aircraft - 65ft wingspan and 30ft-diameter rotors. The V-280 is not that much heavier at 35,000lb. Bell's proposal for the Army's FVL Capability Set 1 armed scout is also an unmanned tiltrotor, it turns out.