Glass cockpit aircraft refer to:

Glass cockpit aircraft primarily utilize advanced digital displays and integrated systems to present flight data and aircraft status information. This modern technology enhances situational awareness and provides pilots with real-time information through an electronic format. In contrast to traditional analog instruments, which rely on individual gauges and dials, glass cockpits feature multi-functional displays that can present various types of data in a cohesive, streamlined manner.

While it's true that some glass cockpit aircraft may include a limited number of analog instruments, the defining characteristic is the presence of digital displays that provide enhanced functionality and data management. This integration often incorporates systems like the Primary Flight Display (PFD) and Multi-Function Display (MFD), which simplify information access and decision-making for pilots. The other options do not align with this definition, as they either emphasize analog instruments or erroneously describe airships, which are not relevant to the concept of glass cockpit technology.