Patent ID: 8151639
Filing Date: 2012-04-10
Classification: G01F,G01P

Abstract:
1. A test tool for an airspeed indicator of an aircraft that is connected to a pitot tube of the aircraft to test an airspeed of the aircraft, the test tool comprising: a cylinder portion being a cylindrical member that includes an insertion groove with a predetermined amount of space, and of which one end is sealed by a cover and includes an injection portion on one side of the cover so that the insertion groove passes through one end of the pitot, and of which another end is open and includes a protruded step around its inner circumferential surface; a piston portion being inserted into the insertion groove of the cylinder portion to reciprocally move within the insertion groove, and comprising a protrusion portion that has a size and a shape corresponding to an aperture of the insertion groove, and a knob portion that is extended from one side of the protrusion portion and is provided in a bar shape; and a display portion being formed of a transparent material on one side of an outer surface of the cylinder portion to display a location of the protrusion portion reciprocally moving within the cylinder portion.