Complex sentence: A twin-engine replacement for the single-engine Otter retaining DHC's renowned STOL qualities, design features included double slotted trailing edge flaps and ailerons that work in unison with the flaps to boost STOL performance.
Split into simpler sentences: A twin-engine replacement for the single-engine Otter retaining the renowned STOL qualities. Design features included double slotted trailing edge flaps and ailerons that work in unison with the flaps to boost STOL performance.