Definition
A flight deck display system that integrates two or more vision technologies — typically Synthetic Vision System (SVS), which generates a computer-drawn 3D image of terrain and obstacles from a database, and Enhanced Flight Vision System (EFVS), which shows a real-time sensor image (usually infrared) of the actual scene outside — into a single combined display. The pilot sees both the modeled terrain picture and the live sensor view together, allowing improved situational awareness and, when approved, use of the system for credit on instrument approaches.
Plain English
A cockpit display that combines a computer-generated picture of the terrain ahead with a live infrared or sensor image of the real world outside, shown together so the pilot has a clearer view of where they are and what is in front of them.
Context Anchor
Seen in discussions of synthetic vision, enhanced vision, and advanced instrument displays used during low-visibility flight and instrument approaches.
Derivation
Combined' simply means joined together. The name reflects what the system does: it merges synthetic (database-generated) vision with enhanced (sensor-based) vision into one picture, rather than showing them on separate displays.
Why Pilots Care
Improves situational awareness and decision-making in reduced visibility by supplying more complete visual cues than either computer-generated or sensor imagery alone.
Grounding Statement
On a dark or hazy approach, CVS can help the pilot recognize where the runway and surrounding terrain are in relation to the aircraft.
Intuition Check
CVS does not mean the pilot has better eyesight, and it is not just two separate pictures placed nearby. It means the aircraft system combines computer-created and sensor-based views to support one clearer flight display.
Example Sentence 1
The aircraft's CVS displayed the synthetic terrain picture overlaid with the infrared sensor image, giving the crew a clear view of the runway environment on a foggy night approach.
Example Sentence 2
During the night approach the CVS combined sensor images with the terrain picture to highlight obstacles near the airport.