Texas Instruments TI 9100 LORAN-C Receiver

This is the certification set for the first-general aviation LORAN-C receiver. LORAN (LOng RAnge Navigation) was developed in the United States during World War II. It was the dominant system of long-range electronic navigation from 1943 until the widespread use of the Global Positioning System in the late 1990s. LORAN-C emerged in the late 1950s with the advent of improved timing equipment at LORAN stations. The TI 9100 was a milestone because the "microprocessor revolution" of the early 1980s permitted the automation of many LORAN-C functions that limited its practicality for single pilot use. It also significantly reduced size, power consumption, weight, and cost. LORAN-C was not approved for navigation under Instrument Flight Rules (IFR), thus its overall impact on general aviation aircraft was relatively small.