1–2 von 2 Ergebnissen
|

    Navigation errors encountered using weather-mapping radar for helicopter IFR guidance to oil rigs

    Phillips, J. D. / Bull, J. S. / Hegarty, D. M. et al. | NTRS | 1980
    approaches to oil rig helipads. The following navigation errors were measured: total system error, radar-range error, radar-bearing error, and flight ...

    Flight investigation of helicopter IFR approaches to oil rigs using airborne weather and mapping radar

    Bull, J. S. / Hegarty, D. M. / Phillips, J. D. et al. | NTRS | 1979
    offshore oil rigs and its use has been rapidly expanding in recent years. A joint NASA/FAA flight test investigation of helicopter IFR approaches ...