Oklahoma-based Intercontinental Jet Service Corp (ISJC) has received an STC for Hartzell’s four-bladed scimitar aluminum prop installations on the Mitsubishi MU-2 turboprop twin.

In addition to being an authorized Mitsubishi MU-2 service center, ISJC is a Hartzell recommended service facility. The service provider's new STC replaces the steel prop hub installation with lighter weight hubs and blades, saving 17 pounds per engine and improving performance. The modification is applicable to more than 260 aircraft including the MU-2B, -26A, -40, -36A, and -60 models.

The lighter weight aluminum hub propellers have an extended TBO of 4,000 hours/six years, whichever occurs first, an improvement of 500 hours/one year over the previous steel hub props.

The $85,000 kit includes installation; larger, custom polished aluminum spinners; propeller to engine rigging; and dynamic balance with existing propeller trade-in.

“Intercontinental Jet and Hartzell collaborated closely on this project and we are pleased that many MU-2 operators now have an opportunity for better performance with a much more economical and convenient time between overhaul with this STC,” said Harzell president JJ Frigge. “Hartzell’s scimitar design delivers optimized performance, reduced noise signature, and better fuel efficiency.”