NDB Instrument flight trainer

Claim 1

Apparatus for visually demonstrating NDB instrument navigational techniques, comprising: a planar table having a first playing surface inclined with respect to the horizontal, and an opposing second surface; first magnetic means selectively positionable adjacent to said second surface of said table, opposite said first surface; a manually movable model airplane having a nose and an opposing tail and engageable with said first surface of said table, said model airplane including a facsimile automatic direction finder relative bearing indicator responsive to said first magnetic means, said facsimile relative bearing indicator including an annular azimuth scale with degree markings equally spaced around the periphery thereof from zero degrees to 360 degrees, the zero marking adjacent said nose of said model airplane, a pointer positioned within the central opening of said azimuth scale, said pointer rotatable about an axis vertical to said model airplane, said pointer further includes a second magnetic means fixed thereto so that said pointer is rotated and directed toward first magnetic means, and a facsimile gyro compass containing a compass card with direction markings thereon including north, south, east and west at the proper 90 degree relationships, said compass card mounted to an axis vertical to said model airplane and freely rotatable through 360 degrees.