IFR conditions

IFR (instrument flight rules) conditions

Weather conditions below the minimum allowed for flight under visual flight rules, or VFR.
References in periodicals archive ?
167 Fuel requirements for flight in IFR conditions.
Among the shortcomings identified with the text-based FA are its seemingly arbitrary and unwieldy coverage areas, character limitations imposed by its legacy nature, a prohibition against describing IFR conditions reserved for Sigmets and Airmets, and infrequent update rates.
The G5 is approved as a primary source of aircraft attitude or turn coordination information, as a secondary source for altitude, airspeed and vertical speed, and for flight under VFR and IFR conditions.
Under IFR conditions, a pilot's ability to fly using visual cues is significantly impaired, so FAA regulations require that pilots navigate and orient the aircraft through reference to aircraft instruments.
Recent introduction of sophisticated navigation and ordnance delivery systems designed for IFR conditions .
Because there were a lot of clouds in the area, and we would be in and out of IFR conditions on departure, we took a one-minute takeoff interval with plans to rendezvous when we found a clear area.
The jet s range is 3,900 nautical miles (7,223 kilometers), affording nonstop distances such as Beijing to Dubai and Hong Kong to Adelaide (Australia), with four passengers under NBAA IFR conditions.
The midmorning takeoff was in the rain with IFR conditions existing all along the coast.
The note about extending the departure leg in IFR conditions did not get covered.
Our products increase situational awareness and reduce pilot workload, making it even easier and safer to fly in both VFR and IFR conditions.
Pilots--especially VFR pilots--must decline a vector into IFR conditions and advise ATC when weather prevents flying the recommended heading.