Abstract: A system for displaying guidance aids to a crew for ground obstacle avoidance, particularly wingtip clearance. Perspective areas are drawn representing the current locations of the wingtips over the ground and predicted locations out into the future for a specified time or a specified distance. A flight crew may use these displayed guidance aids to determine the proximity of any perceived threat to the airplane. This capability addresses the costly problem of wingtip/airplane ground collisions. The graphical cue systems are specifically targeted toward aircraft that have a large wing span/size and/or folding wingtips.

Abstract: A motor vehicle headlight which includes a reflector, a light source (e.g., tungsten halogen capsule) within the reflector and a lens secured across the reflector's forward opening and including thereon means for substantially preventing glare to an oncoming motorist during headlight operation. This preferred means for preventing glare comprises a quantity of masking material (e.g., an opaque coating containing a black pigment) located on the lower angular surfaces or portions thereof of a preselected number of lensing facets formed within an internal surface of the lens. Light is thus prevented from passing through these masked angular surfaces or portions thereof in a substantially upward direction from the headlight location, which passage could in turn cause said glare. In a specific embodiment, a small size headlight (e.g.