01.06.2026

FAA STC for 3-blade MT-Propeller on Piper Pa-28-235 Pathfinder
MT-Propeller Entwicklung GmbH received the FAA STC SA04463NY for the installation of the 3-blade propeller MTV-9-B/198-52 on the Piper PA-28-235 Cherokee Pathfinder powered by the engines Lycoming O-540-B1B5 or Lycoming O-540-B4B5.
This installation ist already certified by EASA STC 10062339 R1.
According to MT-Propeller Vice President Martin Albrecht the installation features the following advantages:
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 holding more than 230 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 34 500 propeller systems with more than 125 000 blades are in service.
200 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 the years.
A factory certified network of 62 service centers provides best service and maintenance all over the world.
This installation ist already certified by EASA STC 10062339 R1.
According to MT-Propeller Vice President Martin Albrecht the installation features the following advantages:
- Enhanced climb performance by approx. 5 % (MTOW, SL, ISA conditions)
- Enhanced cruise performance by 2 to 3 kts (MTOW, ISA conditions)
- Unlimited blade life
- Significant inside and outside noise reduction
- FOD repairable blades
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 holding more than 230 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 34 500 propeller systems with more than 125 000 blades are in service.
200 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 the years.
A factory certified network of 62 service centers provides best service and maintenance all over the world.

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