An apparatus and method for tracking aircraft wingtip position during taxi operations
to prevent wingtip ground incursion. A patterned illumination source is attached
proximal the wingtips to project a readily discernable target pattern in the direction
of taxi travel. At least a portion of the target pattern is reflected off of any
obstructions that lie in the straight-line direction of travel, such that the pilot
can maneuver to avoid striking the obstruction. By way of example, the patterned
illumination source comprises a laser module positioned with the navigation and/or
strobe light of the aircraft. The device may be retrofitted to existing aircraft
without additional wiring with the control of activation being selectable via power
cycling of existing aircraft lighting controls. One aspect of the invention provides
a tip tracking module bulb that may be retrofitted into existing light sockets
to simplify system installation.