Frictional Power Intensity Measurements for Aircraft Tires

This paper presents the results of tire footprint studies which were performed to understand the effects of vertical load, camber, yaw, inflation pressure and tire construction on frictional power. Two previously worn F-16 radial and bias tire constructions were selected. All tests were conducted at low speed on a Tire Force Machine having a specialized sensor plate with embedded traction and slip sensors. The tests indicate that the total frictional power for both tire constructions are quite similar at low yaw angles, however, at 4° yaw, the bias tire generated significantly more frictional power than the radial tire.