Commuter Air Technology (CAT) is expanding its King Air B300 gross weight increase STC to include the Rockwell Collins Pro Line 21 avionics suite and Cleveland wheels and brakes. Originally obtained in July 2015 with Goodrich wheels and brakes, the STC increases the turboprop twin’s ramp weight to 16,600 pounds, takeoff weight to 16,500 pounds and landing weight to 15,675 pounds. The amendment to the STC is anticipated to receive approval this month.

“We pride ourselves in providing our customers with the latest performance enhancements that increase the value and capability of their King Air,” said Darryl Wilkerson, president of the Oklahoma City, Okla.-based modification specialist. “These gross weight amendments are an affordable option for a variety of our customers, particularly charter companies and special-mission clients.”

The STC will support the additional weight of CAT 350ME (maximum endurance) fuel tanks, which provide a total 280 gallons of fuel and a potential flight time of more than 12 hours with a range of 2,760 nm, said CAT (Booth 1240). The company anticipates an STC for the CAT 350ME fuel tank by year-end.