(HP-67/97) LORAN-C Triplets - position determination - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Software Libraries (/forum-10.html) +--- Forum: HP-65/67/97 Software Library (/forum-12.html) +--- Thread: (HP-67/97) LORAN-C Triplets - position determination (/thread-13504.html) |
(HP-67/97) LORAN-C Triplets - position determination - SlideRule - 08-24-2019 12:29 PM An extract from Position determination with Loran-C triplets and the Hewlett-Packard HP-67/97 programmable calculators, Naval Postgraduate School, NPS55-80-010, MAR 1980 (58 pgs) "ABSTRACT This report presents an algorithm and HP-67/97 programs for position determination with Loran-C chains. Operational data cards are prepared in advance for Loran-C triplets. Position determination is performed using a single program card and an appropriate operational data card. … B. Program Description One program card and one operational data card (described below) are all that is required for on-location position determination from Loran triplet time-difference measurements. Two program cards are required to prepare operational data cards; these operational data cards should be prepared and validated prior to on-location navigational use. Thus although three program cards are described only one program card is required for navigation; two program cards are used to prepare operational data cards during or prior to mission planning The function of each program card and its intended use follows. Program Card 1 . This program card is used to prepare master data cards … Program Card 2 . This program card is used to prepare an operational data card for every Loran triplet within an operational area … Program Card 3 . This program card is used in conjunction with an operational data card for position determination … … C. HP-67/97 Calculator Programs 1. User Instructions … 2. Sample Problem … 3. Program Storage Allocations and Program Listings …" program listing - pgs 15-22 Very thorough! BEST! SlideRule |