How many flight instruments must power-driven aircraft have for day VFR flight?

For power-driven aircraft operating under day VFR (Visual Flight Rules) conditions, the requirements dictate that they must have a range of essential flight instruments to ensure safe operation. This includes having a combination of instruments that provide critical information about the aircraft's performance and flight parameters.

The regulations specify that these instruments typically include, at a minimum, an airspeed indicator, an altimeter, and a compass, among possibly others. Given the variety and complexity of flying operations and the need for adequate situational awareness during flight, having multiple instruments is crucial. This standard not only enhances safety by allowing the pilot to cross-reference data but also ensures compliance with aviation regulations, which dictate that sufficient instruments be available for effective flight management.

Thus, the requirement for 'multiple instruments as specified' signifies the need for a comprehensive suite of instruments tailored to the operational context and the specific type of aircraft being flown, ensuring that pilots have the necessary tools for safe navigation and control during flight.