Definition
The minimum visibility, cloud clearance, and ceiling requirements a helicopter pilot must meet to operate legally under Visual Flight Rules. Under 14 CFR Part 91, helicopters generally have lower VFR weather minimums than airplanes, including the ability to operate clear of clouds with less than one statute mile visibility in Class G airspace at or below 1,200 feet AGL during the day, provided the helicopter is operated at a speed that allows the pilot to see and avoid traffic and obstacles in time to do so.
Plain English
The lowest weather conditions—how far you can see and how close you can get to clouds—at which a helicopter is allowed to fly using only the pilot's eyes for navigation, without flying on instruments. Helicopters are allowed to fly in worse weather than airplanes because they can fly slower and stop in the air if needed.
Context Anchor
Seen in helicopter instrument procedure discussions when deciding whether a helicopter can continue visually, transition from an instrument procedure, or operate under VFR in marginal weather.
Derivation
“VFR” means “Visual Flight Rules”: rules for flying mainly by outside visual reference. “Minimums” means the lowest allowed limit. In this term, it points to the lowest visibility and cloud conditions that still legally allow helicopter VFR flight.
Why Pilots Care
Helicopter pilots must know these limits to stay legal and avoid controlled flight into terrain or traffic conflicts when weather is marginal.
Intuition Check
Do not read “minimums” as a comfort level or personal preference. Here it means the legal lowest allowed weather conditions for helicopter VFR flight; a pilot may choose higher personal limits for safety.
Example Sentence 1
Before departing on the medical transport flight, the pilot reviewed the helicopter VFR minimums for Class G airspace and confirmed the reported visibility met the requirement.
Example Sentence 2
Even though visibility was only three-quarters of a mile, the flight remained legal under helicopter VFR minimums during daylight.