EVALUATION OF LORAN-C/D AIRBORNE SYSTEMS.

Abstract

The performance of three Loran-C airborne receiver/computer systems was investigated during flights in the U.S. Northeast Corridor to determine the feasibility of using Loran-C signals and equipment to navigate V/STOL vehicles in that area. Flight tests were conducted in a C-130 and DC-6 fixed wing aircraft, and a CH-47C helicopter. Tracking radar was used on several of the flights to determine the airborne Loran-C equipment accuracy. Oscilloscope photographs of the received signals and strip chart recordings of the received 50 kHz to 150 kHz spectrum were used to establish the Loran-C signal, noise, and interference conditions throughout the Northeast Corridor. Test results showed that existing Loran-C signals and the systems did establish aircraft positions from the ground to operating altitudes in the Northeast Corridor. However, the equipment interfering signal rejection ability and reliability were not adequate for immediate operational use. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1970
Accession Number
AD0705507

Entities

People

  • George H. Quinn

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Airborne
  • Aircraft Equipment
  • Aircrafts
  • Fire Control Radar
  • Fixed Wing Aircraft
  • Helicopters
  • Loran
  • Navigational Aids
  • Navigational Equipment
  • Oscilloscopes
  • Photographs
  • Radar Equipment
  • Short Takeoff Aircraft
  • Test And Evaluation
  • Vehicles

Readers

  • Aerospace Engineering
  • Aviation Safety and Air Traffic Management
  • Positioning, Navigation, and Timing (PNT) Technology.