초록 ▼

A line-controlled, centrifugal fan, jet-propelled model airplane is disclosed in which the impeller of a fan contained within the fuselage of the aircraft is driven from a remote drive unit by an elongated flexible cable contained within a flexible sheath. The impeller rotates about an axis perpendi

A line-controlled, centrifugal fan, jet-propelled model airplane is disclosed in which the impeller of a fan contained within the fuselage of the aircraft is driven from a remote drive unit by an elongated flexible cable contained within a flexible sheath. The impeller rotates about an axis perpendicular to the longitudinal axis of the airplane and is driven in a direction of rotation tending to rotate the airplane about its lateral axis in a nose-up direction, due to the frictional contact of the compressed air between the rotating impeller and the housing of the centrifugal fan mounted within the fuselage. A flywheel powered by the electric motor in the remote drive unit controls the rate of acceleration and deceleration of the aircraft as an electric motor in the drive unit is switched on and off.

대표청구항 ▼

A toy aircraft comprising: an elongated body having wings and a tail assembly attached thereto; centrifugal fan means housed within said body for powering said aircraft; a hand-held remote drive unit for driving said fan means, said remote drive unit comprising, an electric motor, and switch means f

A toy aircraft comprising: an elongated body having wings and a tail assembly attached thereto; centrifugal fan means housed within said body for powering said aircraft; a hand-held remote drive unit for driving said fan means, said remote drive unit comprising, an electric motor, and switch means for selectively operating said electric motor; an elongated flexible drive cable extending between and operatively connected to said remote drive unit and said centrifugal fan means for rotatively driving said centrifugal fan means from said drive unit; and means for controlling the rate of acceleration of said fan means when said electric motor is switched on and for controlling the rate of deceleration of said fan means when said motor is switched off, said means comprising a flywheel disposed in said hand-held remote drive unit and operatively connected to at least one of said electric motor and said elongated flexible drive cable.