 The type was designed to be easy to maintain; various components were intentionally interchangeable where possible and there was a generous provision of access hatches in the fuselage.Production aircraft were powered by a single Alvis Leonides 25 engine, capable of providing up to ; the performance of this engine meant that Provost was roughly twice as powerful as the preceding Percival Prentice.The engine operated smoothly across various speeds and produced relatively low noise levels from within the cockpit.