EASA STC for 4-blade MT prop on Cirrus SR22

Atting, November 2022 - MT-Propeller Entwicklung GmbH has received the EASA STC 10038566 REV 5 for installing the 4-blade MTV-14 Propeller in combination with a MT-Propeller governor on the Cirrus SR22/SR22T and SR22 with RPM Reduction to 2500 RPM (presently only for non-G1000 equipped aircraft).



MT-Propeller have received the EASA STC for installing their 4-blade MTV-14 Propeller in combination with a MT-Propeller governor on the Cirrus SR22/SR22T and SR22 with RPM Reduction to 2500 RPM.

MT-Propeller Vice President Martin Albrecht says, that the installation features the following advantages:

- Turbine smooth, vibration free propeller operations

- Replaceable stainless steel leading edge for best erosion protection of the blades

- Improved engine cooling

- Enhanced climb performance and shorter take-off distance: (2700 RPM-Version only)

- Increased static thrust (2700 RPM-Version only)

- Enhanced cruise performance

- Unlimited blade life, Lower cost overhaul and No AD’s

- SR22T and SR22 (2500 RPM version) comply with the strict German Noise Regulation “Landeplatz Lärmschutz Verordnung” for unrestricted airport operations in Germany and other European Countries.

The long time proven 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.

About MT-Propeller



MT-Propeller is the world leading natural composite propeller manufacturer with 30 certified propeller models from 2-blade to 7-blade hydraulically controlled variable pitch propeller, for engines producing up to 5000hp, and 2-blade to 4-blade electrically controlled variable pitch propeller, 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 and hovercraft. MT-Propellers can be developed for nearly every aircraft type from motor gliders to regional airliners.

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

MT-Propeller is holder of over 220 STCs worldwide and OEM supplier for more than 90% of the European Aircraft Industry as well as 30% of the US Aircraft Industry. More than 28 000 propeller systems with more than 90 000 blades are in service.

180 Million fleet hours where already performed on MT-Propellers.

With the longest industry TBO of 4500 hours or 6 years for the 5-bladed turbo prop MT-Propeller has proven the reliability over years.

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

MT-PROPELLER Entwicklung GmbH
Airport Straubing-Wallmuehle
D-94348 Atting - Germany
phone: +49-(0)9429-9409-0
fax: +49-(0)9429-8432
sales@mt-propeller.com
www.mt-propeller.com