Verti Bird from Fallout

thingiverse

Vertibird pilots, accustomed to operating these sleek, militarized aircraft, take to the skies in complete silence. The characteristic whirl of air-driven screws has been supplanted by powerful propellers whirring into motion with each takeoff, generating a surprisingly efficient thrust in stark contrast to the old Vertibird designs that once boasted distinctive spinning airscrews as their signature hallmark.