Aircraft equipped with a single Aspen Avionics Pro Max primary flight display can do away with vacuum-powered gyroscopic instruments that the FAA has long required as backups.
Source: aopaAspen Pro Max eliminates vacuum system
Aircraft equipped with a single Aspen Avionics Pro Max primary flight display can do away with vacuum-powered gyroscopic instruments that the FAA has long required as backups.
Source: aopaAspen Pro Max eliminates vacuum system