Complex sentence: Parachuted at a rate of 20 feet per second into the rescue zone, the craft was powered by a Vincent motorcycles HRD T5 15 hp engine; sails and a fishing kit were also provided.
Split into simpler sentences: Parachuted at a rate of 20 feet per second into the rescue zone. The craft was powered by a Vincent motorcycles HRD T5 15 hp engine, sails were also provided.