Rockwell Collins PLGR GPS handset - Designed ffor a competitive bid contract with the DOD, Rockwell's PLGR GPS set the standard for Military spec GPS, winning the initial $21m contract in 1995. Rockwell ultimately went on to deliver well over a 250,000 units.
Design/performance parameters included the ability to transition from high altitude parachute drops of 30,000 feet to 2 atmospheres under water as well as single hand operation.