What type of aircraft requires an electric start when the APU is inoperative?

The Boeing 787 is designed with advanced systems that integrate more modern technologies compared to older aircraft. In the case of an inoperative Auxiliary Power Unit (APU), the Boeing 787 necessitates the use of a battery or external power source for engine start. This is a crucial aspect of its design, allowing for better reliability and safety in various operational situations.

The need for an electric start in the absence of an APU is especially significant for the Boeing 787, as it relies on its sophisticated electrical systems to manage multiple functions, including engine startups. This feature illustrates the aircraft's emphasis on utilizing electric systems rather than traditional pneumatic starts that older aircraft might use when their APU is not functioning.

Understanding this requirement is vital for ramp personnel, as it affects procedures related to starting the aircraft under certain conditions and highlights the importance of understanding the specific operational characteristics of different aircraft types.