Press Release

The Silent 7 defines a new level of comfort and performance that no turboprop aircraft has ever achieved before.

Issued by MT-Propeller .

August 13, 2024

Transport Canada Civil Aviation (TCCA) has issued the letter of acceptance for EASA STC 10014953 R.6 for the installation of the Silent 7 propeller MTV-47-1-N-C-F-R(P)/CFR260-361 on the Pilatus PC-12 series aircraft with P&W PT6A-67B, P&W PT6A-67P or P&W PT6E-67XP propeller turbines. This installation is also already certified by FAA under certificateSA02742NY.

The Silent 7 defines a new level of comfort and performance that no turboprop aircraft has ever achieved before. MT-Propeller vice president Martin Albrecht says that the installation of the seven-bladed MT-Propeller on the PC-12 features the following advantages:

- No engine modifications necessary

- Certified ground roll distance reduced by approximately 10%; AFMS amended

- Certified take-off distance over 50 ft obstacle reduced by approximately 15%; AFMS amended

- Climb performance improved

- Aircraft noise level is about four dB(A) less than with the original metal propeller

- Cabin noise is reduced by six to seven dB(A) depending on location

- Complies with the strict German Landeplatz Lärmschutz Verordnung noise regulations of 2010 for unrestricted airport operations in Germany and other European countries.

Due to its smaller diameter the seven-bladed MT-Propeller for the Pilatus PC-12 has more ground clearance for less blade tip erosion and FODs. The MT-Propeller natural composite blades provide significant inside and outside noise reduction. They have no life limitation and are repairable in case of an FOD. They also provide the best vibration damping characteristics for almost vibration free propeller operation and have bonded on nickel alloy leading edges for superior erosion protection of the blades.

MT-Propeller is the world leading natural composite propeller manufacturer with 30 propeller models from two-blade to seven-blade hydraulically controlled variable pitch propellers for engines producing up to 5,000hp, and two-blade to four-blade electrically controlled variable pitch propellers for engines producing up to 350hp as well as two blade fixed pitch propellers.

The high performance, light weight and durable MT-Propellers can be used on aircraft with piston engines and propeller turbines, as well as on airships, wind tunnels or hovercraft. MT-Propellers can be developed for nearly every aircraft type from motor gliders to regional airliners.

Fulfilling the highest certifications requirements, they are also supplemental type certified on Part 25 aircraft.

MT-Propeller is the holder of over 220 STCs worldwide and the OEM supplier for more than 90% of the European aircraft industry as well as 30% of the US aircraft industry. More than 30,000 propeller systems with over 100,000 blades are in service, and 180 million fleet hours have been performed on MT-Propellers. With the longest industry TBO of 4,500 hours or six years for the five-bladed turbo prop MT-Propeller has proven the reliability of its products over the years.

A factory certified network of 62 service centres provides best service and maintenance all over the world.