IFR, which stands for Instrument Flight Rules, is a flying technique employed when weather conditions fall below the standards set by VFR (Visual Flight Rules). It is the preferred method when external references and landmarks become unreliable, often due to factors such as low-lying clouds or heavy rain. With the help of Air Traffic Control and instruments in the aircraft’s cockpit, Duke Life Flight has the ability to safely fly 20 proprietary IFR hospital and scene missions. | Duke Life Flight

Explaining the rules - Landing rules at non-controlled aerodromes

How to Fly an Airplane : Visual Flight Rules for Flying Airplane

VFR: Pilots must stay clear of clouds.