Worlds first 9 bladed prop
“Function, handling and operation of the aircraft is like those props have been in service already for years.

The world’s first 9 bladed prop, made by MT-Propeller, has started its flight test program.
This new development is made for low noise, high performance future airplanes driven by electric powered engines, turbine engines or geared piston engines for propellers with low RPM.
Depending on propeller driven airplane designs, top speeds of up to 430 KTAS are realizable with such a installation, by reducing at the same time the fuel consumption to a turbo prop from a jet.
MT-Propeller proves with this milestone that the innovation in propeller driven airplanes is just at the beginning.
Flying a Jet comfort airplane powered by props combined with the lowest fuel consumption becomes a near future.
[Watch the video|https://mt-propeller.com/videos/9-blade_testflight.mp4] of the Cheyenne test aircraft powered by PT6A-135A turboprop engines flying by at 220 KIAS and 1700RPM with max Torque.
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 210 STCs worldwide and OEM supplier for more than 90% of the European Aircraft Industry as well as 30% of the US Aircraft Industry. 22 000 propeller systems with more than 74 000 blades are in service. 150 Million fleet hours where already performed on MT-Propellers. 37 years ago, the first MT-Propeller was shipped.
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
Further EASA STC for MT 7-blade prop
Atting, May 2026 - MT-Propeller Entwicklung GmbH received the EASA STC 10089486 for the installation of the "Silent 7" 7-blade propeller MTV-37-1-E-C-F-R(P)/CFR205-353( ) on the Piper PA46-600TP and Piper PA46-701TP powered by the Pratt & Whitney propeller turbines PT6A-42A in PA-46-600TP and PT6A-52 in PA-46-701TP. The FAA STC is in progress.
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Atting, May 2026 - MT-Propeller Entwicklung GmbH received the EASA STC 10088128, FAA STC SA12227IB and TCCA Canada SA26-39 for the installation of the scimitar 3-blade MTV-9-B/188-50() propeller on the Cirrus Model SR20 powered by a Lycoming IO-390-C3B6 engine.
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