Controlled Visual Flight Rules (CVFR) are a set of aviation regulations under which a pilot may operate an aircraft which are similar to Visual flight rules (VFR). CVFR flight is used in locations where aviation authorities have determined that VFR flight should be allowed, but that ATC separation minima and guidance are neccesary. In this respect, CVFR is similar to Instrument flight rules (IFR) in that ATC will give pilots headings and altitudes at which to fly, and will provide seperation and conflict resolution. However, pilots and aircraft do not need to be IFR rated to fly in CVFR areas, which is highly advantageous. An example of airspace where CVFR is common would be Canadian Class B airspace. ... The word pilot has several meanings: In shipping, a pilot is someone who guides ships through the waters near a harbour, or especially narrow or otherwise dangerous coastal waters. ... An aircraft is any machine capable of atmospheric flight. ... Visual flight rules (VFR) are a set of aviation regulations under which a pilot may operate an aircraft, if weather conditions are sufficient to allow the pilot to visually control the aircrafts attitude, navigate, and maintain separation with obstacles such as terrain and other aircraft. ... Air Traffic Control Towers (ATCTs) at Schiphol Airport Air traffic control (ATC) services are provided by ground based controllers responsible for directing aircraft on the ground and in the air to ensure safe and efficient traffic flow is maintained. ... Instrument flight rules (IFR) allow an aircraft to be flown in weather conditions that do not meet the minimum requirements for visual flight rules (VFR). ... Canadian airspace is classified similarly to the standard ICAO airspace classes, but there are a few major differences. ...
Instrument FlightRules (IFR) is a set of regulations and procedures for flying aircraft without the assumption that pilots will be able to see and avoid obstacles, terrain, and other air traffic; it is an alternative to visualflightrules (VFR), where the pilot is primarily or exclusively responsible for see-and-avoid.
Since navigation and control of the aircraft under IFR is done by instruments, flying through clouds is allowed; under VFR it is not.
In controlled airspace, air traffic control (ATC) separates IFR aircraft from obstacles and other IFR aircraft by applying separations based on time, distance, and altitude differences between aircraft, by relying either on radar or reports of aircraft positions traditionally sent as voice radio transmissions, but increasingly as electronic data exchanges.
Visualflightrules (VFR) are a set of aviation regulations under which a pilot may operate an aircraft, if weather conditions are sufficient to allow the pilot to visuallycontrol the aircraft's attitude, navigate, and maintain separation with obstacles such as terrain and other aircraft.
If they are not met then the flight must be flown under IFR, the pilot must have an instrument rating and meet recency of experience requirements pertaining to instrument flight, and the aircraft must be equipped and type-certified for instrument flight.
In some types of airspace, generally at higher altitudes, a flight must be flown under IFR regardless of the meterological conditions, as aircraft fly at high speeds at higher altitudes and the "see and avoid" method of avoiding conflicting traffic is less successful.
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