Beyond Dawlish

Fog & Low Visibility Operations

Introduction

Fog is one of the most challenging weather conditions for pilots, significantly reducing visibility during takeoff, landing, and taxiing. Low visibility can lead to flight delays, diversions, or even cancellations. Pilots must be trained to operate safely in such conditions using advanced navigation aids and landing systems. In DGCA Ground Classes, students learn about different types of fog, visibility limitations, and techniques for safe operations in low-visibility conditions.

Understanding Fog & Its Impact on Aviation

The syllabus for fog and low visibility operations in DGCA Ground Classes covers:

• Types of Fog: Radiation fog, advection fog, upslope fog, and freezing fog.

• RVR (Runway Visual Range): How pilots determine whether a landing is possible.

• CAT I, II, and III Landings: Instrument landing system (ILS) categories and their visibility requirements.

• Autoland & HUD (Head-Up Display) Systems: Advanced technologies for low-visibility landings.

• Controlled Taxiing in Fog: Use of ground radar and taxi guidance systems.

Best Strategies for Managing Low-Visibility Flight Operations

1. Learn to Interpret Visibility Reports & Use ILS for Safe Landings

Pilots must rely on runway visual range (RVR) readings and ILS for precision landings. DGCA Ground Classes teach students how to read METAR reports and use instrument landing aids effectively.

2. Master Low-Visibility Takeoff & Taxiing Procedures

Taxiing in fog requires extra caution and communication with air traffic control (ATC). DGCA Ground Classes provide in-depth training on taxiway markings, lighting systems, and holding points for low-visibility conditions.

3. Understand Alternate Airport Planning & Decision-Making in Foggy Conditions

If fog makes landing impossible, pilots must divert to an alternate airport. Many DGCA Ground Classes focus on flight planning strategies to ensure safe diversions and minimize disruptions.

Final Thoughts

Fog can create serious operational challenges, but with the right training and technology, pilots can navigate safely. Enrolling in DGCA Ground Classes ensures that pilots gain expert knowledge on low-visibility operations, making them proficient in handling such conditions during real-world flights.