A “FLYING WHIRLIGIG” combining the principles of the standard airplane, the autogiro, and the helicopter, is envisioned by a Glenn Dale, Md., inventor, just granted a patent. His design calls for a main wing of conventional form, having at each extremity a set of windmill-like vanes, or “booster-copters, ” arranged to rotate freely when the craft is in motion; their lift aids the main wing to support the machine. The two rotors of each set revolve in opposite directions. Twin propellers, flanking an elevated “pilot house, ” constitute its power plant. They swing upward to provide additional lifting force during the takeoff, and return to horizontal position for forward flight. The inventor foresees the construction of huge air liners which could leave the ground or alight in congested areas where space is limited.