Abstract: A ride height gauge comprising a frame and an indicating mechanism. The frame preferably includes an upright and a generally horizontal base attached to the upright to form a right angle joint. The indicating mechanism preferably includes an arm, an arm mount, and an indicator device. The arm is attached to the arm mount, and the arm mount is slidably attached to the upright. The arm has a vertical position along the upright. The indicator device quantifies the vertical position of said arm. The indicator device may either be an analog device or a digital device. A method for using the ride height gauge to measure the ride height of an automobile chassis includes the steps of positioning the gauge directly under a corner of the chassis, sliding the arm upward until the arm contacts the chassis, and reading the quantified vertical position of the arm from the indicator device.

Abstract: A leaf spring test apparatus, generally comprising a frame constructed and arranged to support a first end and a second end of a leaf spring, a force applicator disposed on the frame for applying a force to a predetermined area of the leaf spring, a force measurement gauge connected to the force applicator to gauge the amount of force applied to the leaf spring by the force applicator, and a distance measurement gauge connected to the leaf spring to gauge movement of the leaf spring upon the application of force by the force applicator to the leaf spring. A method for testing and measuring the spring rate of leaf springs, comprising the steps of installing a leaf spring on a leaf spring test apparatus, zeroing a leaf spring test apparatus, pumping a jack on the leaf spring test apparatus to raise the leaf spring a desired distance, and reading a force measurement gauge.

Abstract: A portable aircraft weighing scale, comprising:(a) a base having load cell mounting structures;(b) a plurality of shear beam load cells mounted to the base via the mounting structures;(c) a platform for supporting an aircraft wheel or wheel set; and(d) a mechanism for mounting the platform to the load cells.