← Back to Aviation Glossary
CFII (Certified Flight Instructor — Instrument)
A flight instructor who holds an instrument instructor rating, authorizing them to provide instrument flight training. A CFII can sign off students for the Instrument Rating Knowledge Test and recommend them for the instrument checkride.
Want to go beyond the definition? This term is covered in depth in AviatorPro's Flight Instructor ground school.
Learn more in Flight Instructor→Related Terms
- Class B AirspaceControlled airspace surrounding the nation's busiest airports (e.g., LAX, JFK, ORD). Operations within Class B require an ATC clearance, a functioning transponder with Mode C, and at least a Private Pilot certificate (student pilots need specific endorsements).
- CRM (Crew Resource Management)A set of training procedures used in aviation to optimize human performance by reducing the effect of human error. CRM focuses on communication, situational awareness, problem-solving, decision-making, and teamwork among flight crew members.
- CrosswindA wind component that blows perpendicular to the aircraft's direction of travel, particularly relevant during takeoff and landing. Pilots use specific techniques (crab method or wing-low method) to compensate for crosswind conditions.
- Dead ReckoningA navigation method where the pilot calculates their current position by using a previously determined position, then advancing that position based on known speed, elapsed time, and course. It's a fundamental piloting skill used alongside electronic navigation.