(under subclass 13) Aeronautical machines of the self-propelled airplane type which carry an explosive or other destructive charge to be set off or liberated by contact with a distant target or by the meeting of other desired conditions. These machines are ordinarily unmanned and are therefore controlled either automatically or by such means as radiant energy from a remote point. This subclass also includes devices of this same type performing useful rather than destructive work at a distance.
