What must each powerplant installed on an airplane with a Standard Airworthiness Certificate have?

Each powerplant installed on an airplane with a Standard Airworthiness Certificate must be type certificated because this certification ensures that the engine meets specific safety and performance standards set by the aviation regulatory authority. Type certification involves a comprehensive evaluation process, including design reviews, testing, and compliance with regulations, which confirms that the engine is safe for use in flight.

The type certification provides assurance that the powerplant has undergone rigorous scrutiny to ensure it performs reliably under varied operating conditions. This is essential for maintaining the overall airworthiness of the aircraft and protecting the safety of its operation.

While secondary certification and flight testing may also play roles in specific aircraft or engine setups, they are not universally required for every powerplant installation under standard airworthiness. Similarly, while engineered for performance is important for operational efficiency, it does not guarantee the necessary regulatory compliance that type certification provides. Thus, type certification is the foundational requirement for any powerplant in an aircraft with a Standard Airworthiness Certificate.