In aviation, instrument flight rules (IFR) is one of two sets of regulations governing all aspects of civil aviation aircraft operations; the other is...

flight rules (VFR) require an airspeed indicator, an altimeter, and a compass or other suitable magnetic direction indicator. Instrument flight rules...

are required to use instrument flight rules, and operation of the aircraft will be primarily through referencing the instruments rather than visual reference...

Flight rules are regulations and procedures adopted for flying aircraft in various conditions. Flight rule regimes include: Instrument flight rules, regulations...

and therefore under instrument flight rules (IFR), as opposed to flying by outside visual references under visual flight rules (VFR). Typically, this...

Instrument rating refers to the qualifications that a pilot must have in order to fly under instrument flight rules (IFR). It requires specific training...

depict preferred VFR flight routes within areas of congested airspace. When an aircraft is flying under instrument flight rules (IFR), the pilot will...

An instrument rating is an authorization required for a pilot to fly under instrument flight rules (IFR). In the United States, the rating is issued by...

IFR-rated pilot in command ("IFR" means Instrument flight rules). In helicopters, there is no minimum flight visibility requirement, or a requirement...

aviation, the sterile flight deck rule or sterile cockpit rule is a procedural requirement that during critical phases of flight (normally below 10,000 ft...