Company Also Issued An EASA STC For Pilatus PC6

Two new props designed by MT Propellers received STC approval on Thursday. The FAA and EASA have certified a new, composite 4-bladed prop for Beech Barons, while the EASA also granted an STC for a similar prop for the Pilatus PC-6.

Baron With MT Props

The FAA STC is for the 4-blade scimitar composite propeller MTV-14-D-C-F/CF188-30g on the Beech Baron Model 95-C55, E55, D55, 58, G58 with the Engines TCM IO-520-( ) and IO-550-( ). The installation is certified by FAA STC No. ST02819NY and EASA STC No. 10026785.

The company says the propeller installation improves overall performance, provides best vibration damping characteristics for almost vibration free propeller operations, and reduces the weight by approx. 20 lbs compared with the original metal propeller. It also provides more ground clearance for reduced foreign object damage (FOD), and the composite blades have no life limitation and can be repaired in case of damage.

Pilatus PC-6 With MT Prop

For the Pilatus PC-6, an EASA STC was issued for the 4-blade scimitar composite propeller MTV-16-1-E-C-F-R(P)/CFR240-55() on the Pilatus PC-6/B1-H2, /B2-H2, /B2-H4 with the Engine P&WC PT6A-20, -20A, -20B, /C20, -27, -34. The installation is certified by EASA STC No. 10031167.

MT Propeller claims the same improvements in performance and vibration dampening as it does for the Baron prop. The composite for the PC-6 reduces the weight by approx. 14 kg (31 lbs) compared with the original 3-blade metal propeller, and reduces the outside and cabin noise significant and and complies with the strict German noise regulations 2010, according to the company. They also say no engine modification is necessary, and that the prop can be repaired in case of FOD with no life limitation.

FMI: www.mt-propeller.com