Continued VFR into IMC is the scourge of general aviation. Year after year, it is a leading cause of fatal accidents—almost four times deadlier than encounters with thunderstorms and icing combined. If anything, these numbers underestimate the problem, since many “successful” VFR-into-IMC flights never show up in the National Transportation Safety Board statistics, but instead only in the lucky pilots’ nightmares.
Why Can’t We Solve VFR Into IMC?
Key Takeaways:
- Despite decades of focus, VFR into IMC remains a leading cause of fatal general aviation accidents, often exacerbated by specific risk factors like passengers, night flying, mountainous terrain, and longer flights.
- Prevention strategies should emphasize a "big picture" approach to preflight weather planning, ruthless realism in decision-making, and utilizing inflight "circuit breakers" and modern datalink weather for situational awareness and identifying "outs."
- Modern technology, including autopilots, synthetic vision, and GPS, significantly enhances a VFR pilot's ability to recover from inadvertent IMC, but effective use requires updated training that exposes pilots to marginal VFR conditions and incorporates recurrent instrument practice.
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