After loss of all electrical power, how long will the standby attitude indicator provide pitch and roll information?

The standby attitude indicator in the T-6 aircraft is designed to function independently of the main electrical systems, providing critical pitch and roll information in the event of an electrical failure. The indicator is powered by a backup source, which allows it to maintain its functionality after the loss of all primary electrical power.

The duration for which the standby attitude indicator will continue to provide accurate information is essential for maintaining situational awareness during a critical phase of flight, particularly during emergencies when primary systems are unavailable. The indicator is capable of providing reliable pitch and roll information for approximately 9 minutes, maintaining an accuracy of within 6 degrees.

This specification is particularly important for pilots to understand, as it allows for continued navigation and control even when other flight instruments fail. Details about the specific performance parameters, such as time and accuracy, help emphasize the reliability of this backup system. The choice of 9 minutes within 6 degrees accurately reflects the capabilities engineered into the standby attitude indicator, supporting pilots in making informed decisions during abnormal flight conditions.