Raisbeck Engineering, in collaboration with Hartzell, is offering a new carbon fiber, five-blade swept propeller for the King Air 350. The company announced the new propeller at AirVenture this week, and an example is on display at the Hartzell booth. STC approval is expected shortly, and the price is expected to be less than $140,000 per aircraft.

The 105-inch diameter prop features a six-year, 4,000-hour TBO and a three-year, 3,000-hour warranty. The propeller is expected to improve overall aircraft performance by between 5 and 7 percent and is designed to maximize thrust and increase cruise speed, improve single-engine climb, and generate less blade tip noise.

Plans are to make the propeller available with the recently announced Blackhawk XP67A upgrade conversion.