Which aircraft uses 4x Avco Lycoming ALF502 turbofans?

The BAe 146 is the correct answer because this regional airliner is specifically designed to be powered by four Avco Lycoming ALF502 turbofan engines. These engines provide the BAe 146 with the necessary thrust and efficiency for short to medium-haul flights, making it suitable for both passenger and cargo operations.

In contrast, other aircraft listed have different engine configurations. The Hercules, for instance, typically uses turboprop engines rather than turbofans, while the VC10 is powered by Rolls-Royce engines, specifically the Conway engines. The E3 Sentry, which is a military variant based on the Boeing 707, also utilizes a different set of engines. Therefore, the relationship between the BAe 146 and Avco Lycoming ALF502 turbofans is unique and directly links the aircraft type with the specific engine model.