In the context of aviation and aerospace, "Request Full Route Clearance" is a phrase used by pilots to request air traffic control (ATC) to issue a complete route clearance for their intended flight plan.

When a pilot requests a full route clearance, they are asking ATC to provide a comprehensive set of instructions that includes:

1. Route of flight: The specific airways, routes, or waypoints the aircraft is cleared to fly.
2. Altitudes: The authorized altitude or altitude range for each segment of the flight.
3. Speeds: Any specific speed restrictions or requirements.
4. Reporting points: The locations where the aircraft must report its position to ATC.

By requesting a full route clearance, the pilot is seeking a detailed and explicit instruction from ATC that outlines the exact route the aircraft is authorized to follow, including any necessary deviations or restrictions. This ensures that the pilot has a clear understanding of the expected flight path and can navigate safely and efficiently.

Requesting a full route clearance is particularly important in certain situations, such as:

• Complex airspace or routes
• Unfamiliar airports or regions
• Special events or airspace restrictions
• Emergency or unusual situations

In response to the request, ATC will provide the pilot with a full route clearance, which may include phrases like "Cleared to destination via" or "Cleared as filed." The pilot must then read back the clearance to confirm understanding and ensure that they have received the correct instructions.