Wipaire’s Supplemental Type Certificate increases the Husky’s gross weight on Wipline 2100 floats to 2,250 pounds from 2,200 pounds. This adds 50 pounds to the aircraft’s useful load, further increasing the Husky’s utility. Wipaire’s STC is available as a takeoff-only gross weight increase or a takeoff and landing increase which allows the aircraft to be landed at the 2,250-pound gross weight. This modification is available on the A-1B, A-1C-180, and A-1C-200.