AIM: to explore the clinical feasibility and superiority of hand-assisted laparoscopic surgery (HALS) technique through lap disc hand-assisted device and to extend the application range of HALS.

The HALS system provided the UH-60 pilots with continuous 3d real-time radar imagery of the landing zone throughout the approach, hover, and landing in complete brownout.

SNC's 94 GHz HALS radar imaging system is the critical technology that enables pilots to 'see through' brownout conditions.