What type of engine did the Hawker Harts have?

The Hawker Harts were primarily equipped with piston engines, specifically the Hawker Hart aircraft which primarily utilized the Bristol Pegasus radial engine. The Rolls-Royce Merlin, famously associated with several WWII aircraft, was not part of the Hart design. This engine type was known for its excellent power-to-weight ratio and reliability, making it suitable for various aviators and military applications during its era. It allowed the Hawker Hart, a light bomber and reconnaissance aircraft, to achieve notable performance and success.

Therefore, the type of engine accurately associated with the Hawker Harts is indeed the piston engine category, specifically radial engines, rather than the Rolls-Royce Merlin engines.