Engine failure in Traffic pattern with flaps down
I was wondering what would be the best course of action if engine failure occurred while in traffic pattern; keep the flaps or retract them? Could this response be aircraft-specific? Some people comment that flaps generate a lot of drag and should be removed, other state that the energy loss while transitioning from flaps to no flaps is more energy consuming and includes the risk of stalling. Any ideas? I would be grateful if someone had any reference (book, paper, website) to support their view. Many thanks