An example of airspace where CVFR is common would be Canadian Class B airspace.
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For example, in the United States, California's Oakland (KOAK), Monterey (KMRY) and Santa Ana (KSNA) airports routinely grant temporary IFR clearance when a low coastal overcast forces instrument approaches, while the rest of the state is still under visual flight rules.
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Cloud base is an important meteorological variable for aviation safety, as it determines whether pilots may use Visual Flight Rules (VFR) or must follow Instrument Flight Rules for take-off or landing.
The aircraft were to have been given a new name and be available in a VFR version intended for flight school use, a basic IFR version and a glass cockpit equipped version powered by a 200-hp Lycoming IO-390 powerplant giving it a forecast cruise speed of 148 knots.