HC3522 -This 400 watt motor is for midsize models weighing 38-50 oz for 3-D flight, up to 64 oz for aerobatic flight and up to 85 oz for leisure flight.
• For three-cell LiPo applications - use HC3522-0990 • For four-cell LiPo applications - use HC3522-0700 • Gas equivalent - .30