Position determination with Loran-C triplets using the Hewlett-Packard HP-75C, the Sharp PC-1500 (TRS-80 PC-2) or the Radio Shack TRS-80 Model100 portable computers
A multiple leg TMA procedure with programs for the Hewlett-Packard HP-41CV, the Hewlett-Packard HP-75C, the Sharp PC-1500 (TRS-80 PC-2) and the Radio Shack TRS-80 Model 100 portable computers
