VFR and IFR flying are the 2 primary sets of rules that control aircraft navigation. You may have heard pilots use these terms a lot. Pilots mainly use these terms when they are planning their flight, talking to ATC, and when they request a clearance to operate in specific airspaces. IFR and VFR are both used for different things. Lets dive in.
VFR stands for Visual Flight Rules. This means that pilots rely on just looking outside of the window to fly and navigate. It is the see and avoid method of flying. It is used during Visual Metrological Conditions. This requirement is met when there is a cloud ceiling of at least 1,000 feet, and a visibility of at least 3 statue miles.
IFR is the exact opposite of VFR. It stands for Instrument Flight Rules. This means that the pilots rely on just their instruments to navigate. This is the equivalent of driving a car with only high tech GPS and sensors through intense fog. IFR is used in Instrument Metrological Conditions (thick fog, heavy rain). To fly IFR, the pilot must have an instrument rating.
Flight planning is also very different between IFR and VFR flights. In VFR flying, a flight plan is optional, but very highly recommended. You can literally follow a highway, circle your house, or do anything in VFR. However that changes when you fly IFR. A flight plan is mandatory. You can not fly in instrument conditions without a flight plan. You must follow your flight plan, and you are most likely flying along vector airways.
In the end, the decision between VFR and IFR depends on the weather, the pilots certification, and the tasks at hand. VFR is simple see and avoid flying, and IFR is instrument flying, required for complex, all weather operations. Together, these 2 rules keep the skies secure and safe everyday.